Kathleen Lewis, M.D.
NPI 1265506133 · Neonatal-Perinatal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathleen Lewis, M.D. is a Neonatal-Perinatal Medicine Physician provider in San Francisco, CA (NPI 1265506133).
Provider details
- NPI number
- 1265506133
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G33776 (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
19 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
- 2006-11-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Kathleen Lewis's NPI number?
- Kathleen Lewis's National Provider Identifier (NPI) is 1265506133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Lewis's specialty?
- Kathleen Lewis is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kathleen Lewis located?
- Kathleen Lewis's practice location on file with NPPES is 3850 California St, San Francisco, CA 94118-1502.
- What is Kathleen Lewis's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Lewis is (415) 750-6052.
- Does Kathleen Lewis accept Medicare?
- Kathleen Lewis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathleen Lewis's NPI active?
- Yes — Kathleen Lewis's NPI (1265506133) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.