John Clothier, M.D.
NPI 1750431250 · Family Medicine Physician · San Rafael, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Clothier, M.D. is a Family Medicine Physician provider in San Rafael, CA (NPI 1750431250).
Provider details
- NPI number
- 1750431250
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G81579 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
688 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 248 | $146 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 152 | $104 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 93 | $188 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 70 | $127 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 66 | $50 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 36 | 35 |
| Prednisone | 31 | 31 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 27 | 26 |
| Fluticasone Propionate | 23 | 14 |
| Mupirocin | 18 | 17 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 16 | 15 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Practice location
Mailing address
Additional practice locations (1)
- 335 S Mcdowell BlvdPetaluma, CA 94954-3507Phone: (415) 925-8865Fax: (415) 446-0134
Registry dates
- Enumerated
- 2007-01-10
- Last updated
- 2026-03-17
- Certified
- 2026-03-17
Frequently asked questions
- What is John Clothier's NPI number?
- John Clothier's National Provider Identifier (NPI) is 1750431250, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Clothier's specialty?
- John Clothier is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Clothier located?
- John Clothier's practice location on file with NPPES is 4000 Civic Center Dr Ste 206, San Rafael, CA 94903-5233.
- What is John Clothier's phone number?
- The practice phone number listed in the NPPES registry for John Clothier is (415) 925-8865.
- Does John Clothier accept Medicare?
- John Clothier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Clothier's NPI active?
- Yes — John Clothier's NPI (1750431250) is active in the NPPES registry as of the last update on 2026-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.