Stephen Sherwin, M.D.
NPI 1437461431 · Medical Oncology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Sherwin, M.D. is a Medical Oncology Physician provider in San Francisco, CA (NPI 1437461431).
Provider details
- NPI number
- 1437461431
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G41963 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$902,213 across 58 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-07-07
- Last updated
- 2010-07-07
Frequently asked questions
- What is Stephen Sherwin's NPI number?
- Stephen Sherwin's National Provider Identifier (NPI) is 1437461431, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Sherwin's specialty?
- Stephen Sherwin is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Sherwin located?
- Stephen Sherwin's practice location on file with NPPES is 995 Potrero Avenue, San Francisco, CA 94110.
- What is Stephen Sherwin's phone number?
- The practice phone number listed in the NPPES registry for Stephen Sherwin is (415) 476-4082.
- Does Stephen Sherwin accept Medicare?
- Stephen Sherwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Sherwin's NPI active?
- Yes — Stephen Sherwin's NPI (1437461431) is active in the NPPES registry as of the last update on 2010-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.