Quick answers
- Does Frances H. Yuan accept Medicare assignment?
- Yes. Medicare's clinician data says Frances H. Yuan 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 Frances H. Yuan see?
- In 2024, CMS data shows 48 Original Medicare patients and 102 services for Frances H. Yuan. This counts Original Medicare only and measures volume, not quality.
- What is Frances H. Yuan's NPI number?
- 1285665604. 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 Frances H. Yuan, 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 | 48 |
|---|---|
| Services billed to Medicare | 102 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)20 services
- Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)19 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).
- High cholesterol69%
- High blood pressure65%
- Arthritis60%
- Osteoporosis35%
- Anxiety23%
Practice locations
Addresses where Frances H. Yuan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1600 W Ave JLancaster, CA 93534 (800) 967‑2289
- 19950 Rinaldi StPorter Ranch, CA 91326 (818) 403‑2400
Group practices
Medicare enrollment lists Frances H. Yuan as a member of these groups (CMS data updated October 2, 2026).
- Providence Facey Medical Foundation385 clinicians in the group
- Obhg California PC94 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, CA — not a recommendation.
Other clinicians in Providence Facey Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285665604 |
| 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
- 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