Quick answers
- Does Adrienne A. Fratini accept Medicare assignment?
- Yes. Medicare's clinician data says Adrienne A. Fratini accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Adrienne A. Fratini see?
- In 2024, CMS data shows 84 Original Medicare patients and 501 services for Adrienne A. Fratini. This counts Original Medicare only and measures volume, not quality.
- What is Adrienne A. Fratini's NPI number?
- 1104960624. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Adrienne A. Fratini, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 84 |
|---|---|
| Services billed to Medicare | 501 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 55 |
Most frequent services
- Therapy using electrical currents (90870)303 services
- Psychotherapy for crisis, first hour (90839)67 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- Anxiety70%
- Depression62%
- High blood pressure57%
- High cholesterol56%
- Diabetes26%
- Asthma21%
Hospitals where Adrienne A. Fratini works
Medicare's Facility Affiliation Data lists Adrienne A. Fratini at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- UCSF Health Stanyan HospitalSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050457
Practice locations
Addresses where Adrienne A. Fratini is enrolled with Medicare (CMS data updated October 2, 2026).
- 2060 Fairmont DrCastro Valley, CA 94578 (510) 346‑7500
- 450 Stanyan StSan Francisco, CA 94117 (415) 668‑1000
Group practices
Medicare enrollment lists Adrienne A. Fratini as a member of these groups (CMS data updated October 2, 2026).
- Alameda Health System601 clinicians in the group
- Cep America - Psychiatry PC93 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Castro Valley
Clinicians with the same Medicare primary specialty in Castro Valley, CA — not a recommendation.
Other clinicians in Alameda Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104960624 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians