Quick answers
- Does Kevin S. Tan accept Medicare assignment?
- Yes. Medicare's clinician data says Kevin S. Tan 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 Kevin S. Tan see?
- In 2024, CMS data shows 699 Original Medicare patients and 2,938 services for Kevin S. Tan. This counts Original Medicare only and measures volume, not quality.
- What is Kevin S. Tan's NPI number?
- 1063654978. 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 Kevin S. Tan, 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 | 699 |
|---|---|
| Services billed to Medicare | 2,938 |
| Different services or procedures | 51 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient complete exam of visual system (92014)544 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)425 services
- Imaging of optic nerve (92133)301 services
- Exam of visual field with extended testing (92083)262 services
- Extended exam of the back part of the eye with optic nerve drawing (92202)246 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 cholesterol74%
- High blood pressure67%
- Arthritis36%
- Diabetes27%
- Osteoporosis19%
- Chronic kidney disease17%
Practice locations
Addresses where Kevin S. Tan is enrolled with Medicare (CMS data updated October 2, 2026).
- 595 Buckingham Way, 448 Eyecare Associates of SfSan Francisco, CA 94132 (415) 982‑2020
Specialties
- Ophthalmologyprimary
Other ophthalmologists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University |
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063654978 |
| 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