Marilyn Williams, MS, RN
NPI 1497972822 · Gerontology Registered Nurse · San Francisco, CA
Marilyn Williams, MS, RN is a Gerontology Registered Nurse provider in San Francisco, CA (NPI 1497972822).
Provider details
- NPI number
- 1497972822
- Entity type
- Individual
- Primary specialty
- Gerontology Registered NurseNursing Service Providers
- Credential
- MS, RN
- Sex
- Female
- Sole proprietor
- No
- License
- 189302 (CA)
Specialties & taxonomies
Nursing Service Providers
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
- 2007-04-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marilyn Williams's NPI number?
- Marilyn Williams's National Provider Identifier (NPI) is 1497972822, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Williams's specialty?
- Marilyn Williams is listed in the NPPES registry with a primary specialty of Gerontology Registered Nurse (Nursing Service Providers).
- Where is Marilyn Williams located?
- Marilyn Williams's practice location on file with NPPES is 2425 Geary Blvd, San Francisco, CA 94115-3358.
- What is Marilyn Williams's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Williams is (415) 883-4486.
- Is Marilyn Williams's NPI active?
- Yes — Marilyn Williams's NPI (1497972822) 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.