Margaret Martin, PHD, RN
NPI 1811523269 · Administrator Registered Nurse · San Francisco, CA
Margaret Martin, PHD, RN is a Administrator Registered Nurse provider in San Francisco, CA (NPI 1811523269).
Provider details
- NPI number
- 1811523269
- Entity type
- Individual
- Primary specialty
- Administrator Registered NurseNursing Service Providers
- Credential
- PHD, RN
- Sex
- Female
- Sole proprietor
- No
- License
- 817238 (CA)
Specialties & taxonomies
Nursing Service Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 180 Redwood St Ste 350San Francisco, CA 94102-3282Phone: (415) 218-6103
Registry dates
- Enumerated
- 2020-03-18
- Last updated
- 2020-03-18
- Certified
- 2020-03-18
Frequently asked questions
- What is Margaret Martin's NPI number?
- Margaret Martin's National Provider Identifier (NPI) is 1811523269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Martin's specialty?
- Margaret Martin is listed in the NPPES registry with a primary specialty of Administrator Registered Nurse (Nursing Service Providers).
- Where is Margaret Martin located?
- Margaret Martin's practice location on file with NPPES is 2150 Filbert St, San Francisco, CA 94123-3413.
- What is Margaret Martin's phone number?
- The practice phone number listed in the NPPES registry for Margaret Martin is (415) 218-6103.
- Is Margaret Martin's NPI active?
- Yes — Margaret Martin's NPI (1811523269) is active in the NPPES registry as of the last update on 2020-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.