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    • 1Step 1: Learn the kinds of care homes
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    • 3Step 3: Find homes and check them
    • 4Step 4: Visit, and get the papers before you sign
    • 5Step 5: Move in
    • 6Step 6: The first months, and your rights

    Start with a question

    • Who pays for a care home?
    • Does Medi-Cal pay for a care home?
    • Board and care or assisted living?
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A Diablo Assisted Living 1License #79201426 · Covelight Care
Covelight CareA Diablo Assisted Living 1License #79201426 · 123 Los Cerros Ave, Walnut Creek, CA · (925) 289-6588Record printed from covelightcare.com — data as of the dates shown on each item.
Home/California/Contra Costa County/Walnut Creek/A Diablo Assisted Living 1
Map · 123 Los Cerros Ave

© Protomaps © OpenStreetMap

Estimated starting rate$5,200/mo

Covelight estimate · likely $4,250–$6,400 · See costs

Check availability

Request a tour

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  • AskThe cost, or your own question
  • (925) 289-6588

    From the state licensing record · October 27, 2026

Free for families. A home gets your number only if you say yes.

DA

Call A Diablo Assisted Living 1

Walnut Creek · Licensed for 6

(925) 289-6588

From the state licensing record · October 27, 2026

or

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Small home · Licensed for 6 · Walnut Creek

A Diablo Assisted Living 1

123 Los Cerros Ave, Walnut Creek, CA 94598 · Licensed since 2024

  • Overview
  • Care
  • Costs
  • Daily life
  • Location
  • State record

A Diablo Assisted Living 1

Overview

Estimated starting rate

$5,200 a month

Covelight estimate · likely $4,250–$6,400 See costs

No openings reported

  • Approved by the state: Wheelchair · Dementia · HospiceState licensing record · October 27, 2026
  • Licensed for 6: a small care homeThe state license record

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Care and support

  • Wheelchairup to 6 residents
  • Dementia
  • Hospiceup to 6 residents

Not on file: bedridden approval.

Approved by the state · State licensing record · October 27, 2026. An approval may cover specific rooms or residents; it does not establish an opening.

Read the state’s own wording
AGE RANGE 60 AND OVER. APPROVED FIRE CLEARANCE FOR SIX(6) NON-AMBULATORY. WAIVER/GRANTED FOR HOSPICE CARE FOR (6).

983 - RCFE / DEMENTIA

CDSS record, verbatim · October 27, 2026

As needs change

  • Staying through hospice

    Hospice waiver on file · covers up to 6 — care may continue at the end of life

    State licensing record · October 27, 2026

  • If memory loss develops

    Dementia-care designation on file

    State licensing record · October 27, 2026

We’ll ask for you. Not on file for A Diablo Assisted Living 1: two-person transfers or a lift, who is awake overnight and help with medicines. When we check availability, we ask about these too.

Check availability

What it costs here

Covelight estimate

$5,200a month to start

Likely $4,250–$6,400

From 13 nearby homes that publish rates · this home’s rate is not on file

Monthly cost breakdownWith a shared room and basic help · room, care and fees$5,200likely a month
Room
Daily care
Sharing the room
  • Starting monthly rate$5,200likely $4,250–$6,400

    Covelight’s estimate starts from the rates 13 small homes and similar homes within 3 miles publish, then adjusts for this home’s size, state care approvals, Medi-Cal waiver participation, years licensed and the area’s prices. In testing, the likely range held the real rate for 6 in 10 homes. This home’s own rate is not on file.

  • Basic help with daily careUsually includedup to $600

    Basic help is usually part of the starting rate. Homes that price care by level start around $600 a month (44 California homes publish a care-level range, seen in September 2026).

  • One-time move-in fee$2,500one time · likely $0–$4,000

    Homes that list a one-time entry or community fee charge a median of $2,500 (133 California listings; middle half $1,000–$4,000). Many homes list none — ask.

Likely monthly totalLikely $4,250–$6,550
$5,200
First monthWith a one-time move-in fee · likely $5,000–$9,750
$7,700
How people payPrivate pay, Medi-Cal waiver, SSI/SSP, veterans, insurance
  • MedicareDoes not pay for room and board in a care home. It can still cover hospice or home-health visits inside one.
  • Private payMost residents pay from savings, a home sale or family help. Ask for the rate and what it includes in writing.
  • Medi-Cal Assisted Living WaiverThis home is not on the DHCS participation list dated October 1, 2026. Ask the program about current options. The waiver pays for care services, not room and board.
  • SSI/SSPCalifornia’s 2026 standard is $1,626.07 a month; $1,444.07 of it goes to the home and $182 stays with the resident. Whether this home accepts it is not on file — ask.
  • VeteransVA Aid & Attendance can add to a veteran’s or surviving spouse’s pension. Ask whether residents here have used it.
  • Long-term care insuranceMost policies pay for licensed care homes. Ask what paperwork the home provides for claims.
If the money runs out, what Medi-Cal covers
Rates at nearby homes13 nearby homes publish starting rates of $3,000 to $8,000

$3,000$8,000

EstimateLikely rangeA nearby home’s published starting rate

13 homes like this within 3 miles publish starting rates mostly between $3,400–$6,850.

  • Ag Health CareWalnut Creek · 0.0 mi · Small home
    $3,395Listed on Seniorly · assisted living studio · seen September 9, 2026
  • Wimbledon Walnut Creek Care HomeWalnut Creek · 0.9 mi · Small home
    $8,000Listed on Seniorly · seen September 9, 2026
  • Welcome Home Senior Residence (Walnut Creek)Walnut Creek · 1.4 mi · Small home
    $5,000Listed on Seniorly · seen September 9, 2026
  • A Place for SeniorsWalnut Creek · 1.4 mi · Small home
    $6,500Listed on Seniorly · seen September 9, 2026
  • Camellia Garden Care VillaWalnut Creek · 1.4 mi · Small home
    $5,000Listed on Seniorly · seen September 9, 2026
  • Welcome Home Senior Residence (Concord 2)Concord · 1.5 mi · Small home
    $4,500Listed on Seniorly · seen September 9, 2026
  • Better Living of Walnut CreekWalnut Creek · 1.5 mi · Small home
    $3,500Listed on Seniorly · assisted living · seen September 9, 2026
  • Heatherwood Memory CareWalnut Creek · 1.5 mi · Mid-size home
    $6,500Listed on Seniorly · assisted living shared bedroom · seen September 9, 2026
  • Bermuda Residential Care HomeConcord · 1.8 mi · Small home
    $3,800Listed on Seniorly · seen September 9, 2026
  • Buttercup Care HomeConcord · 2.3 mi · Small home
    $5,000Listed on A Place for Mom · seen September 9, 2026
  • Ramona Care HomePleasant Hill · 2.4 mi · Small home
    $3,000Listed on Seniorly · seen September 9, 2026
  • Aspen Senior LivingConcord · 2.9 mi · Small home
    $7,000Listed on Seniorly · assisted living shared bedroom · seen September 9, 2026
  • Elisabeth Care HomePleasant Hill · 2.9 mi · Small home
    $3,500Listed on Seniorly · seen September 9, 2026
How this estimate worksWithin 25% for 7 in 10 homes in testing

Covelight’s estimate starts from the rates 13 small homes and similar homes within 3 miles publish, then adjusts for this home’s size, state care approvals, Medi-Cal waiver participation, years licensed and the area’s prices. In testing, the likely range held the real rate for 6 in 10 homes. This home’s own rate is not on file.

  • Only prices a home put out itself count: its own website, a listing it supplied, or a price Seniorly says the home confirmed. Prices a listing site shows without saying where they came from are left out.
  • Nearby homes are the nearest of the same size that publish a rate, widening from 3 to 40 miles until at least 8 do. The estimate starts from what they charge, then adjusts for this home’s size, state care approvals, Medi-Cal waiver participation, years licensed and the area’s prices.
  • Room, care-level, second-person and move-in lines come from what California homes publish on listing sites. Memory care uses Covelight’s researched premium over assisted living.
  • Totals add each line’s figure and combine the lines’ ranges as separate charges, because a home is rarely at the top, or the bottom, of every line at once.
  • We tested this estimate on 1,546 California homes that publish their own starting rate. It was within 10% of the real rate for 3 in 10 homes and within 25% for 7 in 10; the likely range held the real rate for 6 in 10 (September 12, 2026).
  • It cannot see this home’s specials, how it assesses care, or which rooms are open.
Avoid surprises on the billWhat changes the price, and what to ask
  • The care level

    Some homes charge one all-inclusive rate. Others add levels or points as needs grow. Ask how the level is set, who decides, and what the next level costs.

  • What is billed separately

    Medication management, incontinence supplies, transportation and a second person in the room are often extra. Ask for the list in writing.

  • Move-in costs

    A one-time move-in fee or deposit is common. Ask what it covers and whether any of it comes back if the stay is short.

  • Increases

    California requires at least 90 days’ written notice, with reasons, before a rate rises (Health & Safety Code §1569.655). A change in the resident’s care level is the section’s own exception and can be billed sooner.

Ask for the price

An estimate for planning, not a quote. A home sets the price after hearing about the care needed.

Daily life

Daily life here is not on file yet. Most small homes haven’t published it, and that says nothing about the home.

The best way to see it is a visit.

Request a tour

Where it is

123 Los Cerros Ave, Walnut Creek, CA 94598Address from the public record · October 27, 2026. Confirm the entrance with the home before visiting.

Opening the neighborhood map…

  1. 1John Muir Medical Center-Walnut Creek CampusHospital · General acute care, on the state’s list0.2 mi

Straight-line distances; check the drive or the walk. Hospital: the nearest general acute care hospital on the state’s list (CDPH, September 16, 2026).

Open directions ↗

The state record

California inspects every licensed home and publishes what it found. A citation does not make a home unsafe, and an empty file does not make a home good.

CDSS public record, read October 27, 2026 · License #79201426 · See the state’s own record ↗

The last 36 months — 4 of 4 documents

20252 state visits · 2 documents

Nov 5, 2025Facility evaluation reportRoutine visitReport on file

Type of visit: Required - 1 Year

On 11/05/2025 at 11:45AM, Licensing Program Analysts (LPAs) Andrew Christy and James Sampair arrived unannounced for the Required 1 Year inspection. LPAs met with administrator Nina Villanueva and explained the purpose of the visit. The facility is currently at capacity with six (6) residents. The LPAs toured the facility inside and outside. The LPA inspected the kitchen, common areas, bedrooms, bathrooms, and the exterior of the facility. The facility was clean, appropriately furnished, and well lit. More than the 2 days of perishable and 7 days of nonperishable food supplies were available. No body of water was on the facility grounds. Medications are centrally stored. Bathrooms and showers were observed to be fully functioning and clean. Carbon monoxide and smoke detectors were operational. The fire extinguisher was last serviced on 09/27/2024. Inside temperature was 74.0 degrees Fahrenheit and the hot water temperature in the resident bathroom was 127.6 degrees Fahrenheit. The LPAs reviewed 5 resident and 5 staff files, all found to be complete. The Emergency Disaster Plan was last reviewed 01/07/2025. Quarterly emergency drills were last conducted 09/09/2025. Medications and the Medication Administration Record (MAR) were reviewed and no errors were found. Continued on LIC809C..... Continued from LIC809..... The following deficiencies were cited during the inspection: At 12:05PM, one of the resident's rooms was inaccessible and cannot be walked around due to multiple unopened packages, clutter, trash, and other various items. At 12:30PM, the hot water in the residents' bathroom measured to 127.6 degrees Fahrenheit. At 12:45PM, the facility fire extinguishers were found to have been last serviced 09/27/2024. Deficiencies are cited per Title 22 California Code of Regulations and listed on LIC809D. Failure to submit proof of corrections (POC) by plan of correction due date and/or any repeat deficiencies within a 12-month period may result in civil penalties. Exit interview conducted. A copy of this report, along with appeal rights, was provided to the administrator.the state’s words, verbatim · CDSS document, Nov 5, 2025
Jan 21, 2025Facility evaluation reportPost LicensingReport on file

Type of visit: Post Licensing

On 1/21/2025 at 1:30 PM, Licensing Program Analyst (LPA) James Sampair arrived for this unannounced Post Licensing Inspection. Upon entry to the facility, the LPA told Caregiver Aileen Tica the purpose of the visit. The LPA toured the facility inside and outside. The LPA inspected the kitchen, common areas, bedrooms, bathrooms, and the exterior of the facility. The facility was clean, appropriately furnished, and well lit. More than the 2 days of perishable and 7 days of nonperishable food supplies were available. No body of water was on the facility grounds. Medications are centrally stored. Bathrooms and showers were observed to be fully functioning and clean. Carbon monoxide and smoke detectors were operational. The fire extinguisher was last serviced on 09/27/2024. Inside temperature was 71.4 degrees Fahrenheit and the hot water temperature was 110.9 degrees Fahrenheit. The LPA reviewed 5 resident and 5 staff files. No citations were issued. Exit interview conducted and a copy of this report provided.the state’s words, verbatim · CDSS document, Jan 21, 2025

20242 state visits · 2 documents

Dec 3, 2024Facility evaluation reportPrelicensingReport on file

Type of visit: Prelicensing

On 12/03/2024 at 8:30 AM, Licensing Program Analysts (LPAs) James Sampair and David Doidge arrived unannounced to conduct a change of ownership prelicensing visit. Upon entry into the facility, the LPAs informed Applicants Ninia Villanueva and Maricel Evangelista of the purpose of the visit. The LPAs toured the facility inside and outside. The LPAs inspected the kitchen, common areas, bedrooms, bathrooms, and the exterior of the facility. The facility was clean, appropriately furnished, and well lit. More than the 2 days of perishable and 7 days of nonperishable food supplies were available. No body of water was on the facility grounds. Medications are centrally stored. Bathrooms and showers were observed to be fully functioning and clean. Carbon monoxide and smoke detectors were operational. The fire extinguisher was last serviced on 09/25/2024. Inside temperature was 71 degrees Fahrenheit and the hot water temperature was 110 degrees Fahrenheit. Facility passed this prelicensing inspection. Component III training was provided for the Applicants. Final review of the application to be completed by the Central Applications Bureau analyst. Exit interview conducted and a copy of this report provided to the Applicant.the state’s words, verbatim · CDSS document, Dec 3, 2024
Nov 4, 2024Facility evaluation reportOfficeReport on file

Type of visit: Office

Facility Type: RCFE Application Type: CHOW Capacity: 6 Census (if any clients in care): 6 COMP II Participants: Maricel Evangelista (Administrator/Board Member) & Ninia Villanueva (Board Member) Interview Method: Virtual interview via Microsoft Teams On November 04, 2024, applicant/administrator participated in COMP II. Identification of the applicant and administrator was verified through interview questions based on photo ID and other identifying personal information. During COMP II, applicant and administrator confirmed that they have read and understand community care facility licensing laws included in the Health and Safety Codes and the California Code of Regulations Title 22. Signed LIC 809 with copy of photo ID have been obtained. During COMP II, CAB analyst confirmed Applicant/Administrator’s understanding of following areas: 1. Facility operation: License type, client/resident populations, and program 2. Admission Policies 3. Staffing requirements & Training 4. Restrictive/Prohibited Health Conditions 5. General provisions 6. Emergency Preparedness 7. Complaints & Reporting 8. Pre-licensing readinessthe state’s words, verbatim · CDSS document, Nov 4, 2024

License holder

Lilygrace LLC, licensed since 2024.

The state’s totals for this licenseSince 2024, as the state’s facility page counts them
State visits on file
4
Total complaints
0
Substantiated allegations
0
Type A citations
0
Type B citations
0

These are the state’s own totals for this license since 2024, per CDSS records. The state counts them apart from the documents above, and they can differ from what those documents show; the documents say what each visit found. One complaint can contain several allegations.

Compare with homes the same size
This homeTypical
Type A citations00
Type B citations00
Substantiated allegations00
Total complaints00

“Typical” is the statewide median for licensed homes this size. It does not adjust for years licensed, and older licenses have had more visits and reports. The median is across the 6,916 licensed small board-and-care homes (6 or fewer beds) in the state record. The figures compared are the state’s totals, not the documents.

What the state’s words mean
Routine visita visit the state records as “Required” — a scheduled visit, not one made in answer to a complaintSubstantiatedthe state found the allegation more likely true than notUnsubstantiatedthere was not enough evidence to prove a violation occurred — not a finding of wrongdoingUnfoundedthe evidence showed the allegation was false, could not have happened, or had no reasonable basisType A citationa violation that poses an immediate risk to health, safety or personal rights if it is not correctedType B citationa violation that could become a risk if not corrected, or one involving records, resources or required services

CDSS citation definitions (PDF) ↗ · CDSS complaint outcomes ↗

An “unsubstantiated” complaint is not a finding of wrongdoing — it means the state investigated and could not confirm the allegation. Outcome words are the state’s own; we never grade, score, or color a record, and we publish no reviews — the state’s dated documents stand in their place.

The earlier licenseFormerly Diablo Assisted Living I (license #75601489), a change of ownership the state recorded on November 4, 2024.

The state’s report of November 4, 2024, filed under license #79201426, records this license’s application as a change of ownership: “Application Type: CHOW”. The state lists license #75601489 as “Closed, Change of Ownership” as of October 26, 2026. Inspections and reports filed under license #75601489 are on the state’s record of that license.

The state’s record for license #75601489 ↗The state’s record for license #79201426 ↗

Open CDSS facility search ↗Report a record errorOperate this home? Respond or correct, free →
Frequently asked questions

A citation does not make a home unsafe, and an empty file does not make a home good.

Quick answers about A Diablo Assisted Living 1

Is A Diablo Assisted Living 1 licensed?

The state lists this license as “Licensed,” per CDSS records as of October 27, 2026.

How many residents is A Diablo Assisted Living 1 licensed for?

6 residents — a small home, per CDSS records as of October 27, 2026.

Has A Diablo Assisted Living 1 been cited?

0 Type A and 0 Type B citations since 2024, per CDSS records as of October 27, 2026. Those records count 4 state visits over the same years.

Is A Diablo Assisted Living 1 still open?

This license was on the CDSS roster as of November 11, 2026.

What does A Diablo Assisted Living 1 cost?

$5,200 a month to start is a Covelight estimate, likely $4,250–$6,400. This home’s own rate is not on file. Ask: “What is the all-in monthly rate, and what would push it higher?”

Covelight’s estimate starts from the rates 13 small homes and similar homes within 3 miles publish, then adjusts for this home’s size, state care approvals, Medi-Cal waiver participation, years licensed and the area’s prices. In testing, the likely range held the real rate for 6 in 10 homes. This home’s own rate is not on file.

Among 7 other homes of a similar licensed size in Walnut Creek that publish a starting rate, the middle half runs $3,875 to $6,500 a month, and the middle figure is $5,000 (n = 7 other homes publishing a starting rate).

Each of those is a home’s own published figure, gathered on its own date in September 2026 — not an average of ours, and not a survey. Similar size means small and mid-size homes counted together, and large communities counted on their own, because they are different markets.

A home outside the band is not overcharging or underpricing: a starting rate covers different things in different homes, which is the first thing to ask about.

The price is made in the phone call. Nothing here is a quote, an offer or a discount.

A starting rate is the room and the base care. California homes commonly bill care levels, medication management, supplies, transport and a second person in the room as extras. Many also charge a one-time fee at move-in. Ask for that list in writing before anything is signed.

Only prices a home put out itself count here: its own website, a listing it supplied, or a price a listing site says the home confirmed. Prices a site shows without saying where they came from are left out.

Does A Diablo Assisted Living 1 take Medi-Cal?

On Medi-Cal’s Assisted Living Waiver: this home is not on the DHCS participation list dated October 1, 2026. Ask the program about current options. The waiver pays for care services, not room and board.

Who holds the license?

The license is held by Lilygrace LLC, per CDSS records as of October 27, 2026.

Is there a hospital nearby?

John Muir Medical Center-Walnut Creek Campus is 0.2 miles away in a straight line, per the CDPH licensed-hospital list dated September 16, 2026. See licensed care homes near it.

Can A Diablo Assisted Living 1 keep a resident on hospice?

Hospice care is approved on this license, covering up to 6 residents, per CDSS records as of October 27, 2026.

A Diablo Assisted Living 1 license and inspection record

  • Name on the license: “A DIABLO ASSISTED LIVING 1”, per the CDSS roster as of May 25, 2025.
  • License #79201426. The state lists this license as “Licensed,” per CDSS records as of October 27, 2026.
  • Licensed for 6 residents — a small home, per CDSS records as of October 27, 2026.
  • Licensed to Lilygrace LLC, per CDSS records as of October 27, 2026.
  • First licensed in 2024, per CDSS records as of October 27, 2026.
  • 4 state inspection visits since 2024, per CDSS records as of October 27, 2026.
  • 0 Type A and 0 Type B citations on file since 2024, per CDSS records as of October 27, 2026. The same records count 4 state visits in that period.
  • 0 complaints and 0 substantiated allegations on file since 2024, per CDSS records as of October 27, 2026.
  • The most recent state visit on file is November 5, 2025, per CDSS records as of October 27, 2026.
Type A citationa violation that poses an immediate risk to health, safety or personal rights if it is not correctedType B citationa violation that could become a risk if not corrected, or one involving records, resources or required services

California writes these definitions for every licensed home, not for this one. CDSS citation definitions (PDF) ↗

See the state’s own record

Nearby

Other homes nearby

Licensed homes near this one in Contra Costa County, most information on file first. Every listed home appears on the same terms.

  • Map

    Walnut Creek · under 0.1 mi

    Ag Health Care

    Small home · licensed for 6

    Starting rate

    $3,395 a month to start

    Listed by the home on Seniorly · September 9, 2026

    On the state record

    • Wheelchair: on the state record
  • Map

    Walnut Creek · 0.1 mi

    Paradise Gardens Care Home II

    Small home · licensed for 6

    Estimated starting rate

    $4,700 a month to start

    Covelight estimate · likely $3,850–$5,800

    On the state record

    • Wheelchair: on the state record
    • Hospice: on the state record
  • Map

    Walnut Creek · 0.2 mi

    Procare Retirement Home

    Small home · licensed for 6

    Estimated starting rate

    $5,300 a month to start

    Covelight estimate · likely $4,350–$6,500

    On the state record

    • Wheelchair: on the state record
    • Hospice: on the state record
    • Bedridden: on the state record
  • Map

    Walnut Creek · 0.1 mi

    Mindful Care Assisted Living

    Small home · licensed for 6

    Estimated starting rate

    $5,250 a month to start

    Covelight estimate · likely $4,300–$6,450

    On the state record

    • Wheelchair: on the state record
    • Dementia: on the state record
    • Hospice: on the state record
  • Map

    Walnut Creek · 0.3 mi

    Mercy Care Home

    Small home · licensed for 6

    Estimated starting rate

    $4,400 a month to start

    Covelight estimate · likely $3,600–$5,400

    On the state record

    • Wheelchair: on the state record
    • Hospice: on the state record
  • Map

    Walnut Creek · 0.4 mi

    Sans Souci

    Small home · licensed for 6

    Estimated starting rate

    $4,900 a month to start

    Covelight estimate · likely $4,000–$6,050

    On the state record

    • Wheelchair: on the state record
    • Hospice: on the state record

Street maps © Protomaps · © OpenStreetMap

Explore Contra Costa County ↗

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DA

Call A Diablo Assisted Living 1

Walnut Creek · Licensed for 6

(925) 289-6588

From the state licensing record · October 27, 2026

or

Let us do the legwork

  • We ask about availability, price and the care you describe.
  • If it’s a fit, you choose whether they call you. Either way, you get every answer.
Check availabilityFree

Ask A Diablo Assisted Living 1

Check availability

Request a tour

More days
  • AskThe cost, or your own question

Free for families. A home gets your number only if you say yes.

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