William Martin, MD
NPI 1174632970 · Rheumatology Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Martin, MD is a Rheumatology Physician provider in Santa Monica, CA (NPI 1174632970).
Provider details
- NPI number
- 1174632970
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ML20008603 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,066 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 | 465 | $138 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 153 | $97 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 119 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 89 | $194 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 62 | $178 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 257 | 70 |
| Prednisone | 159 | 59 |
| Methotrexate Sodiumbrand: Methotrexate | 132 | 34 |
| Allopurinol | 81 | 22 |
| Gabapentin | 77 | 17 |
| Leflunomide | 69 | 18 |
| Azathioprine | 65 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-29
- Last updated
- 2012-10-02
Frequently asked questions
- What is William Martin's NPI number?
- William Martin's National Provider Identifier (NPI) is 1174632970, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Martin's specialty?
- William Martin is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is William Martin located?
- William Martin's practice location on file with NPPES is 2020 Santa Monica Blvd, Santa Monica, CA 90404-2023.
- What is William Martin's phone number?
- The practice phone number listed in the NPPES registry for William Martin is (310) 582-6350.
- Does William Martin accept Medicare?
- William Martin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Martin's NPI active?
- Yes — William Martin's NPI (1174632970) is active in the NPPES registry as of the last update on 2012-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.