Charles Brandsmeier, APNP
NPI 1891214763 · Gerontology Nurse Practitioner · Mill Valley, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Brandsmeier, APNP is a Gerontology Nurse Practitioner provider in Mill Valley, CA (NPI 1891214763).
Provider details
- NPI number
- 1891214763
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Male
- Sole proprietor
- No
- License
- 95011657 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
212 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 96 | $89 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 46 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $129 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 20 | $180 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 16 | $100 |
| Urinalysis, Manual Test81002 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 28 | 27 |
| Prednisone | 20 | 20 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (3)
- 130 2nd StNeenah, WI 54956-2883Phone: (920) 729-2738Fax: (920) 729-3021
- 6609 W Greenfield AveWest Allis, WI 53214-4958Phone: (414) 257-8577
- 1700 W Paradise DrWest Bend, WI 53095-9795Phone: (262) 334-3451Fax: (262) 334-5321
Registry dates
- Enumerated
- 2017-09-12
- Last updated
- 2024-10-29
- Certified
- 2024-10-29
Frequently asked questions
- What is Charles Brandsmeier's NPI number?
- Charles Brandsmeier's National Provider Identifier (NPI) is 1891214763, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Brandsmeier's specialty?
- Charles Brandsmeier is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Charles Brandsmeier located?
- Charles Brandsmeier's practice location on file with NPPES is 750 Redwood Hwy Frontage Rd Ste 1210, Mill Valley, CA 94941-2483.
- What is Charles Brandsmeier's phone number?
- The practice phone number listed in the NPPES registry for Charles Brandsmeier is (888) 663-6331.
- Does Charles Brandsmeier accept Medicare?
- Charles Brandsmeier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Brandsmeier's NPI active?
- Yes — Charles Brandsmeier's NPI (1891214763) is active in the NPPES registry as of the last update on 2024-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.