Matthew Lewin, MD, PHD
NPI 1043269277 · Emergency Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Lewin, MD, PHD is a Emergency Medicine Physician provider in San Francisco, CA (NPI 1043269277).
Provider details
- NPI number
- 1043269277
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- A73541 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-06
- Last updated
- 2009-10-01
Frequently asked questions
- What is Matthew Lewin's NPI number?
- Matthew Lewin's National Provider Identifier (NPI) is 1043269277, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Lewin's specialty?
- Matthew Lewin is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Lewin located?
- Matthew Lewin's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.
- What is Matthew Lewin's phone number?
- The practice phone number listed in the NPPES registry for Matthew Lewin is (415) 353-1238.
- Does Matthew Lewin accept Medicare?
- Matthew Lewin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Lewin's NPI active?
- Yes — Matthew Lewin's NPI (1043269277) is active in the NPPES registry as of the last update on 2009-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.