Charles Marion, NP
NPI 1639201668 · Ambulatory Care Registered Nurse · San Francisco, CA
Charles Marion, NP is a Ambulatory Care Registered Nurse provider in San Francisco, CA (NPI 1639201668).
Provider details
- NPI number
- 1639201668
- Entity type
- Individual
- Primary specialty
- Ambulatory Care Registered NurseNursing Service Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- RN328545 (CA)
Specialties & taxonomies
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing 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
- 2007-03-13
- Last updated
- 2025-09-11
Frequently asked questions
- What is Charles Marion's NPI number?
- Charles Marion's National Provider Identifier (NPI) is 1639201668, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Marion's specialty?
- Charles Marion is listed in the NPPES registry with a primary specialty of Ambulatory Care Registered Nurse (Nursing Service Providers).
- Where is Charles Marion located?
- Charles Marion's practice location on file with NPPES is 50 Lech Walesa, San Francisco, CA 94102-4506.
- What is Charles Marion's phone number?
- The practice phone number listed in the NPPES registry for Charles Marion is (415) 355-7400.
- Is Charles Marion's NPI active?
- Yes — Charles Marion's NPI (1639201668) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.