Quick answers
- Does Stephanie Chin accept Medicare assignment?
- Yes. Medicare's clinician data says Stephanie Chin 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 Stephanie Chin see?
- In 2024, CMS data shows 376 Original Medicare patients and 1,226 services for Stephanie Chin. This counts Original Medicare only and measures volume, not quality.
- What is Stephanie Chin's NPI number?
- 1902936115. 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 Stephanie Chin, 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 | 376 |
|---|---|
| Services billed to Medicare | 1,226 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)199 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)198 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)72 services
- Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)50 services
- Programming of dual lead pacemaker system (93280)44 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 blood pressure75%
- High cholesterol75%
- Atrial fibrillation63%
- Arthritis48%
- Ischemic heart disease48%
- Heart failure44%
Practice locations
Addresses where Stephanie Chin is enrolled with Medicare (CMS data updated October 2, 2026).
- 12677 Alcosta BlvdSan Ramon, CA 94583
- 1450 Treat BlvdWalnut Creek, CA 94597
- 2400 Balfour Rd, Suite 120Brentwood, CA 94513 (925) 308‑8112
Group practices
Medicare enrollment lists Stephanie Chin as a member of this group (CMS data updated October 2, 2026).
- John Muir Physician Network494 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in San Ramon
Clinicians with the same Medicare primary specialty in San Ramon, CA — not a recommendation.
Other clinicians in John Muir Physician Network
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1902936115 |
| 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