Sara Marxmiller, NP
NPI 1871904326 · Adult Health Nurse Practitioner · San Francisco, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sara Marxmiller, NP is a Adult Health Nurse Practitioner provider in San Francisco, CA (NPI 1871904326).
Provider details
- NPI number
- 1871904326
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 734243 (CA)
Specialties & taxonomies
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
12 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
- 2014-05-17
- Last updated
- 2015-11-06
Frequently asked questions
- What is Sara Marxmiller's NPI number?
- Sara Marxmiller's National Provider Identifier (NPI) is 1871904326, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sara Marxmiller's specialty?
- Sara Marxmiller is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sara Marxmiller located?
- Sara Marxmiller's practice location on file with NPPES is 2100 Webster St, San Francisco, CA 94115-2373.
- What is Sara Marxmiller's phone number?
- The practice phone number listed in the NPPES registry for Sara Marxmiller is (415) 923-3377.
- Does Sara Marxmiller accept Medicare?
- Sara Marxmiller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sara Marxmiller's NPI active?
- Yes — Sara Marxmiller's NPI (1871904326) is active in the NPPES registry as of the last update on 2015-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.