Brian Demuth, MD
NPI 1770553950 · Obstetrics & Gynecology Physician · Greenbrae, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Demuth, MD is a Obstetrics & Gynecology Physician provider in Greenbrae, CA (NPI 1770553950).
Provider details
- NPI number
- 1770553950
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G60223 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
84 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 37 | $104 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 35 | $45 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 12 | $66 |
Typical Medicare-allowed amounts for these services range $45–$104 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 83 | 42 |
| Progesterone, Micronizedbrand: Progesterone | 28 | 13 |
| Estradiolbrand: Estradiol (twice Weekly) | 25 | — |
| Valacyclovir Hclbrand: Valacyclovir | 24 | 11 |
| Estrogens, Conjugatedbrand: Premarin | 16 | — |
| Estradiolbrand: Dotti | 15 | — |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-23
- Last updated
- 2014-03-17
Frequently asked questions
- What is Brian Demuth's NPI number?
- Brian Demuth's National Provider Identifier (NPI) is 1770553950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Demuth's specialty?
- Brian Demuth is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Demuth located?
- Brian Demuth's practice location on file with NPPES is 1260 S Eliseo Dr, Greenbrae, CA 94904-2009.
- What is Brian Demuth's phone number?
- The practice phone number listed in the NPPES registry for Brian Demuth is (415) 461-7800.
- Does Brian Demuth accept Medicare?
- Brian Demuth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Demuth's NPI active?
- Yes — Brian Demuth's NPI (1770553950) is active in the NPPES registry as of the last update on 2014-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.