Quick answers
- Does Gary S. Fanton accept Medicare assignment?
- Yes. Medicare's clinician data says Gary S. Fanton 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 Gary S. Fanton see?
- In 2024, CMS data shows 80 Original Medicare patients and 162 services for Gary S. Fanton. This counts Original Medicare only and measures volume, not quality.
- What is Gary S. Fanton's NPI number?
- 1558410498. 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 Gary S. Fanton, 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 | 80 |
|---|---|
| Services billed to Medicare | 162 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)80 services
- Aspiration and/or injection of fluid from large joint (20610)31 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)20 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)17 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 cholesterol70%
- Arthritis69%
- High blood pressure48%
- Ischemic heart disease14%
- Osteoporosis14%
- Atrial fibrillation14%
Hospitals where Gary S. Fanton works
Medicare's Facility Affiliation Data lists Gary S. Fanton 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.
- Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441
Practice locations
Addresses where Gary S. Fanton is enrolled with Medicare (CMS data updated October 2, 2026).
- 300 Pasteur DrStanford, CA 94305 (650) 723‑4000
- 420 Broadway StRedwood City, CA 94063 (650) 723‑4000
- 450 Broadway StRedwood City, CA 94063 (650) 723‑4000
Group practices
Medicare enrollment lists Gary S. Fanton as a member of this group (CMS data updated October 2, 2026).
- Stanford Health Care3,122 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Stanford
Clinicians with the same Medicare primary specialty in Stanford, CA — not a recommendation.
Other clinicians in Stanford Health Care
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1977 (49 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558410498 |
| 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