Quick answers
- Where is Atherton Park Post-Acute?
- 1275 Crane Street, Menlo Park, CA 94025, in San Mateo County, California.
- What is the phone number of Atherton Park Post-Acute?
- (650) 325-8600, as listed by Medicare (CMS).
- What is the Medicare star rating of Atherton Park Post-Acute?
- Medicare overall rating: 4 out of 5 stars (CMS data updated 2026-10-01).
- Has Atherton Park Post-Acute been fined?
- Medicare lists no fines for Atherton Park Post-Acute.
- What did inspectors find at Atherton Park Post-Acute?
- In its last three inspection cycles (June 8, 2021 to April 16, 2026), Medicare lists 45 health citations; the most serious was level F. See the list below (CMS data updated 2026-10-01).
Medicare ratings, explained
Star ratings are one piece of information. Visit, ask questions and talk with your doctor about what matters for your care.
Inspections, fines and staffing
In its last three inspection cycles (June 8, 2021 to April 16, 2026), Atherton Park Post-Acute had 45 health citations; the most serious was level F (no actual harm, potential for more than minimal harm). Medicare lists no fines or payment denials for it in the last three years. Nurse staffing is 3.97 hours per resident per day; the California average is 4.54 and the national average is 3.90.
Source: Medicare (CMS) Provider Data Catalog, data updated October 1, 2026, retrieved November 13, 2026.
Inspection history: last three cycles
State inspectors visit about once a year and also investigate complaints. Each citation (deficiency) has a tag number and a letter, A to L. The letter shows how serious the problem was and how many residents it affected.
What the letters A to L mean
| Seriousness | Isolated (a few residents) | Pattern (some) | Widespread (many) |
|---|---|---|---|
| No actual harm, potential for minimal harm | A | B | C |
| No actual harm, potential for more than minimal harm | D | E | F |
| Actual harm to residents | G | H | I |
| Immediate jeopardy to resident health or safety | J | K | L |
Source: the scope and severity grid Medicare (CMS) uses for nursing home citations.
Most recent cycle: February 14, 2025 — 7 health citations
Inspections in this cycle: February 14, 2025 (standard health inspection); April 16, 2026 (complaint investigation).
Show 7 citations (levels A to F, no actual harm)
F0550 Level E
“Honor the resident's right to a dignified existence, self-determination, communication, and to exercise his or her rights.”
F0578 Level E
“Honor the resident's right to request, refuse, and/or discontinue treatment, to participate in or refuse to participate in experimental research, and to formulate an advance directive.”
F0656 Level E
“Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.”
F0812 Level E
“Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.”
F0880 Level D
“Provide and implement an infection prevention and control program.”
F0689 Level D
“Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.”
F0847 Level D
“Inform resident or representatives choice to enter into binding arbitration agreement and right to refuse.”
Previous cycle: December 15, 2023 — 16 health citations
Inspections in this cycle: December 15, 2023 (standard health inspection); May 9, 2025 (complaint investigation); May 23, 2025 (complaint investigation); August 11, 2025 (complaint investigation).
Show 16 citations (levels A to F, no actual harm)
F0801 Level F
“Employ sufficient staff with the appropriate competencies and skills sets to carry out the functions of the food and nutrition service, including a qualified dietician.”
F0812 Level F
“Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.”
F0689 Level E
“Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.”
F0638 Level E
“Assure that each resident’s assessment is updated at least once every 3 months.”
F0880 Level E
“Provide and implement an infection prevention and control program.”
F0692 Level D
“Provide enough food/fluids to maintain a resident's health.”
F0656 Level D
“Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.”
F0554 Level D
“Allow residents to self-administer drugs if determined clinically appropriate.”
F0584 Level D
“Honor the resident's right to a safe, clean, comfortable and homelike environment, including but not limited to receiving treatment and supports for daily living safely.”
F0636 Level D
“Assess the resident completely in a timely manner when first admitted, and then periodically, at least every 12 months.”
F0640 Level D
“Encode each resident’s assessment data and transmit these data to the State within 7 days of assessment.”
F0641 Level D
“Ensure each resident receives an accurate assessment.”
F0656 Level D
“Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.”
F0658 Level D
“Ensure services provided by the nursing facility meet professional standards of quality.”
F0759 Level D
“Ensure medication error rates are not 5 percent or greater.”
F0921 Level D
“Make sure that the nursing home area is safe, easy to use, clean and comfortable for residents, staff and the public.”
Earlier cycle: June 8, 2021 — 22 health citations
Inspections in this cycle: June 8, 2021 (standard health inspection); October 11, 2023 (complaint investigation); December 15, 2023 (complaint investigation); January 10, 2024 (complaint investigation); February 9, 2024 (complaint investigation); June 27, 2024 (complaint investigation).
Show 22 citations (levels A to F, no actual harm)
F0582 Level F
“Give residents notice of Medicaid/Medicare coverage and potential liability for services not covered.”
F0585 Level F
“Honor the resident's right to voice grievances without discrimination or reprisal and the facility must establish a grievance policy and make prompt efforts to resolve grievances.”
F0812 Level F
“Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.”
F0850 Level F
“Hire a qualified full-time social worker in a facility with more than 120 beds.”
F0867 Level F
“Set up an ongoing quality assessment and assurance group to review quality deficiencies and develop corrective plans of action.”
F0689 Level E
“Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.”
F0761 Level E
“Ensure drugs and biologicals used in the facility are labeled in accordance with currently accepted professional principles; and all drugs and biologicals must be stored in locked compartments, separately locked, compartments for controlled drugs.”
F0880 Level E
“Provide and implement an infection prevention and control program.”
F0554 Level D
“Allow residents to self-administer drugs if determined clinically appropriate.”
F0583 Level D
“Keep residents' personal and medical records private and confidential.”
F0697 Level D
“Provide safe, appropriate pain management for a resident who requires such services.”
F0606 Level D
“Not hire anyone with a finding of abuse, neglect, exploitation, or theft.”
F0655 Level D
“Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted”
F0609 Level D
“Timely report suspected abuse, neglect, or theft and report the results of the investigation to proper authorities.”
F0657 Level D
“Develop the complete care plan within 7 days of the comprehensive assessment; and prepared, reviewed, and revised by a team of health professionals.”
F0689 Level D
“Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.”
F0607 Level D
“Develop and implement policies and procedures to prevent abuse, neglect, and theft.”
F0656 Level D
“Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.”
F0660 Level D
“Plan the resident's discharge to meet the resident's goals and needs.”
F0684 Level D
“Provide appropriate treatment and care according to orders, resident’s preferences and goals.”
F0742 Level D
“Provide the appropriate treatment and services to a resident who displays or is diagnosed with mental disorder or psychosocial adjustment difficulty, or who has a history of trauma and/or post-traumatic stress disorder.”
F0759 Level D
“Ensure medication error rates are not 5 percent or greater.”
Citation descriptions are Medicare’s official wording. “From a complaint” means the citation came from a complaint investigation instead of the regular yearly inspection.
Full inspection reports on Medicare Care Compare →
Fire safety citations (23)
E0039 Level F
“Conduct testing and exercise requirements.”
K0918 Level F
“Have generator or other power source capable of supplying service within 10 seconds.”
K0363 Level E
“Install corridor and hallway doors that block smoke.”
K0920 Level E
“Ensure proper usage of power strips and extension cords.”
K0161 Level D
“Use approved construction type or materials.”
K0324 Level D
“Provide properly protected cooking facilities.”
K0919 Level D
“Meet requirements for the use of electrical equipment.”
K0345 Level C
“Have approved installation, maintenance and testing program for fire alarm systems.”
K0344 Level C
“Have an alternate power supply for its alarm system.”
E0039 Level F
“Conduct testing and exercise requirements.”
K0345 Level F
“Have approved installation, maintenance and testing program for fire alarm systems.”
K0711 Level F
“Provide a written emergency evacuation plan.”
K0712 Level F
“Have simulated fire drills held at unexpected times.”
K0363 Level E
“Install corridor and hallway doors that block smoke.”
K0353 Level D
“Inspect, test, and maintain automatic sprinkler systems.”
K0355 Level D
“Properly select, install, inspect, or maintain portable fire extinguishes.”
K0920 Level D
“Ensure proper usage of power strips and extension cords.”
K0712 Level F
“Have simulated fire drills held at unexpected times.”
E0031 Level D
“Provide emergency officials' contact information.”
K0161 Level D
“Use approved construction type or materials.”
K0353 Level D
“Inspect, test, and maintain automatic sprinkler systems.”
K0919 Level D
“Meet requirements for the use of electrical equipment.”
K0920 Level D
“Ensure proper usage of power strips and extension cords.”
Staffing
Hours of nursing care per resident per day, from the payroll records nursing homes send to Medicare, next to the state and national averages.
| Measure | This home | California | National |
|---|---|---|---|
| Registered nurse (RN) hours per resident per day | 0.50 | 0.68 | 0.69 |
| Licensed practical nurse (LPN) hours per resident per day | 0.96 | 1.20 | 0.86 |
| Nurse aide hours per resident per day | 2.51 | 2.66 | 2.35 |
| Total nurse staff hours per resident per day | 3.97 | 4.54 | 3.90 |
| Total nurse staff hours per resident per day on the weekend | 3.51 | 4.10 | 3.43 |
| RN hours per resident per day on the weekend | 0.39 | 0.52 | 0.48 |
| Nursing staff turnover (per year) | 32.9% | 36.6% | 45.3% |
| RN turnover (per year) | 11.8% | 37.8% | 42.5% |
| Administrators who left in the last year | 0.0 | 0.4 | 0.5 |
Source: Medicare (CMS) Provider Information and State US Averages, data updated October 1, 2026.
Owners and operator
Part of a group of 19 nursing homes: Kalesta Healthcare Group.
Legal business name: Carpinteria LLC.
Owners and managers Medicare lists (7)
| Name | Role | Share | Since |
|---|---|---|---|
| Kalesta Healthcare Group, LLC | Direct owner | 100% | August 1, 2019 |
| Clawson, Scott | Direct owner | NOT APPLICABLE | August 1, 2019 |
| Porter, Micah | Direct owner | NOT APPLICABLE | August 1, 2019 |
| Williams, Ryan | Direct owner | NOT APPLICABLE | August 1, 2019 |
| Clawson, Scott | Indirect owner | 44% | August 1, 2019 |
| Williams, Ryan | Indirect owner | 44% | August 1, 2019 |
| Kalesta Healthcare Group, LLC | Management company (operational or managerial control) | NOT APPLICABLE | August 1, 2019 |
Source: Medicare (CMS) Ownership file, data updated October 1, 2026. Only owners with an ownership interest and management companies are shown.
Compare with other nursing homes
Key facts
| Type | Nursing home |
|---|---|
| Certified beds | 160 |
| Average residents per day | 154.9 |
| Takes part in | Medicare and Medicaid |
| Ownership | For profit – limited liability company |
| Group or chain (affiliated entity) | Kalesta Healthcare Group |
| Legal business name | Carpinteria LLC |
| First approved by Medicare/Medicaid | 2005-06-02 |
| Resident and family councils | Resident council |
| Sprinklers in all required areas | Yes |
| Changed ownership in the last 12 months | No |
| Address | 1275 Crane Street, Menlo Park, CA 94025 |
| County | San Mateo County |
| State | California |
| Phone | (650) 325‑8600 |
| CMS Certification Number | 555827 |
| Name in Medicare records | ATHERTON PARK POST-ACUTE |
| Corrections | Report an error or suggest an update → |
What to ask when you call or visit
A general checklist for any nursing home, not advice about this one. Medicare also publishes guides on medicare.gov.
- Is the home certified by Medicare and/or Medicaid, and does it have a bed for the care you need (short-term rehab or long-term care)?
- Can you see the latest state inspection report? Ask how any problems found were fixed.
- How many nurses and aides work on each shift, at night and on weekends? Is there a registered nurse on site at all times?
- Which doctors see residents, and how often? What happens in a medical emergency, and which hospital is used?
- What therapy (physical, occupational, speech) is offered, and how many days a week?
- Are residents clean, dressed and taking part in activities? Do staff speak to them kindly and answer call lights quickly?
- What do the daily rate and extra services cost, and what do Medicare, Medicaid or your insurance pay? Ask for it in writing.
- Is there a resident council and a family council? How are complaints handled? Ask for the long-term care ombudsman’s contact.
- Are meals appetizing, and can the home meet special diets, language needs and religious or cultural preferences?
- Visit more than once, including at a mealtime or in the evening, without an appointment.
Other nursing homes nearby
By straight-line distance (not driving distance).
- VI at Palo Alto1.0 mi · Palo Alto, CA · 5 of 5 stars
- Webster House1.7 mi · Palo Alto, CA · 5 of 5 stars
- Palo Alto Post-Acute1.8 mi · Palo Alto, CA · 4 of 5 stars
- Devonshire Oaks Nursing Center3.4 mi · Redwood City, CA · 4 of 5 stars
- The Sequoias5.6 mi · Portola Valley, CA · 5 of 5 stars
Nearest hospital emergency rooms
- Stanford Health Care2.6 mi · Stanford, CA · Acute Care Hospital
- Kaiser Foundation Hospital - Redwood City3.2 mi · Redwood City, CA · Acute Care Hospital
- Palo Alto VA Medical Center4.3 mi · Palo Alto, CA · Federal/VA Acute Care Hospital
Sources
- Provider Information — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-01, retrieved 2026-11-13
- Medicare Care Compare — official Medicare profile of this provider
- Health Deficiencies — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Fire Safety Deficiencies — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Penalties — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Ownership — CMS, data updated 2026-10-01, retrieved 2026-11-13
- State US Averages — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Survey Summary — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Citation Code Look-up — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Inspection Dates — CMS, data updated 2026-10-01, retrieved 2026-11-13