Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Charles R Brandsmeier, APNP

Gerontology Nurse Practitioner in Mill Valley, CA · enumerated 2017.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1891214763

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Registry record

Entity type Individual (Type 1)

Name Charles R Brandsmeier

Credential APNP

Sex Male

Practice address 750 Redwood Hwy Frontage Rd Ste 1210, Mill Valley, CA, 94941

Phone (888) 663-6331

Fax (415) 252-7176

Enumeration date Sep 12, 2017

Last updated in NPPES Oct 29, 2024

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95011657 (CA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 7960-033 (WI) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 7960 (WI) Secondary

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 7960 (WI) Secondary

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95011657 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
100071920	Medicaid	WI	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1891214763 active?

Yes, as of the latest NPPES snapshot, NPI 1891214763 is active (record last updated 2024-10-29).

How do I verify Charles Brandsmeier's NPI record?

Cross-check NPI 1891214763 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Kathy Chang-Lipsenthal Internal Medicine Physician · Mill Valley, CA NPI 1356340079 Laura Collins Internal Medicine Physician · Mill Valley, CA NPI 1619976339 Zeljko Milovanovic Family Medicine Physician · Mill Valley, CA NPI 1548278633 Bertrand Vandeville Family Medicine Physician · Mill Valley, CA NPI 1386734150 Sally Ward Family Medicine Physician · Mill Valley, CA NPI 1801916044 Sarah Garayalde Family Medicine Physician · Mill Valley, CA NPI 1184932204 Iris Lowenberg-Lin Family Nurse Practitioner · Mill Valley, CA NPI 1952661985 Jessica Wirth Medical Physician Assistant · Mill Valley, CA NPI 1932591245

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-29.