CHARLES R BRANDSMEIER APNP
NPI 1891214763
Nurse Practitioner - Gerontology in Mill Valley, CA
About Charles R Brandsmeier Apnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLES R BRANDSMEIER APNP (NPI 1891214763) is an individual gerontology provider in Mill Valley, California, licensed in California (95011657) and active in the NPI registry since September 2017. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 3
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Charles R Brandsmeier Apnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
8Medicare enrollment records show Charles Brandsmeier reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94111
- Reassigned Medicare billing, California enrollment
- 304 clinicians in this Medicare group
Oakland, CA 94609
- Reassigned Medicare billing, California enrollment
- 118 clinicians in this Medicare group
Fairfield, CA 94534
- Reassigned Medicare billing, California enrollment
- 225 clinicians in this Medicare group
Napa, CA 94558
- Reassigned Medicare billing, California enrollment
- 1,699 clinicians in this Medicare group
Fairfield, CA 94533
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Northbay Physicians Surgery Center, LLC
- 516 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Saint Francis, WI 53235
- Reassigned Medicare billing, Wisconsin enrollment
- 960 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94941 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILL VALLEY, CA 94941
MILL VALLEY, CA 94941
MILL VALLEY, CA 94941
MILL VALLEY, CA 94941
MILL VALLEY, CA 94941
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Charles Brandsmeier's NPI number?
The NPI number for Charles Brandsmeier is 1891214763. It was assigned to this individual provider in the NPPES registry on September 12, 2017.
Where is Charles Brandsmeier located?
Charles Brandsmeier practices at 750 Redwood Hwy Frontage Rd Ste 1210, Mill Valley, CA 94941. The listed phone number is (888) 663-6331.
What is Charles Brandsmeier's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Charles Brandsmeier enrolled in Medicare?
Yes. Charles Brandsmeier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Charles Brandsmeier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Brandsmeier reassigns Medicare benefits to 8 organizations: American Current Care Of California, A Medical Corporation (San Francisco, CA), Ucsf Health Medical Foundation (Oakland, CA), Northbay Health Medical Foundation (Fairfield, CA), Providence Medical Foundation (Napa, CA), Northbay Healthcare Group (Fairfield, CA) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Charles Brandsmeier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Charles Brandsmeier accept?
Health plans from CareSource (Common Ground Healthcare) list Charles Brandsmeier as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Charles Brandsmeier was last updated on October 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Charles R Brandsmeier, APNP · NPI 1891214763
Gerontology physician in Mill Valley, California. Individual provider, active in the CMS NPPES registry since September 12, 2017.
## Identity
- **NPI:** 1891214763 (Entity type: Individual)
- **Enumerated:** September 12, 2017
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** 95011657 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 750 REDWOOD HWY FRONTAGE RD STE 1210, Mill Valley, CA 94941-2483
- **Phone:** (888) 663-6331 · **Fax:** (415) 252-7176
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): American Current Care Of California, A Medical Corporation (NPI 1932491685, San Francisco, CA); Ucsf Health Medical Foundation (NPI 1922124866, Oakland, CA); Northbay Health Medical Foundation (NPI 1760283527, Fairfield, CA); Providence Medical Foundation (NPI 1205131950, Napa, CA); Northbay Healthcare Group (NPI 1780736736, Fairfield, CA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** October 29, 2024
- **Other identifiers:** Medicaid 100071920 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1891214763) · Data from the CMS NPPES public registry.