Quick answers
- Does Susan L. Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Susan L. Lewis 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 Susan L. Lewis see?
- In 2024, CMS data shows 142 Original Medicare patients and 1,331 services for Susan L. Lewis. This counts Original Medicare only and measures volume, not quality.
- What is Susan L. Lewis's NPI number?
- 1750301065. 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 Susan L. Lewis, 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 | 142 |
|---|---|
| Services billed to Medicare | 1,331 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)352 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)308 services
- Aspiration and/or injection of fluid from large joint (20610)147 services
- Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose (J7324)91 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)53 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%
- Arthritis65%
- High blood pressure54%
- Diabetes19%
- Chronic kidney disease18%
- Ischemic heart disease15%
Practice locations
Addresses where Susan L. Lewis is enrolled with Medicare (CMS data updated October 2, 2026).
- 401 Old San Francisco RdSunnyvale, CA 94086 (408) 739‑6000
Group practices
Medicare enrollment lists Susan L. Lewis as a member of this group (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Sports Medicineprimary
- Orthopedic Surgeryalso
Other sports medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750301065 |
| 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