William Martin, MD
NPI 1609844356 · Family Medicine Physician · Graham, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Martin, MD is a Family Medicine Physician provider in Graham, TX (NPI 1609844356).
Provider details
- NPI number
- 1609844356
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- K7815 (TX)
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
16,546 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) |
|---|---|---|
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 3,980 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,465 | $121 |
| 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 | 1,137 | $16 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 753 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 694 | $8 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 153 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 575 | 178 |
| Lisinopril | 375 | 108 |
| Amlodipine Besylate | 357 | 100 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 328 | 45 |
| Atorvastatin Calcium | 295 | 80 |
| Potassium Chloride | 268 | 73 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$945 across 56 records (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
- 2006-03-09
- Last updated
- 2010-04-21
Frequently asked questions
- What is William Martin's NPI number?
- William Martin's National Provider Identifier (NPI) is 1609844356, 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 Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Martin located?
- William Martin's practice location on file with NPPES is 1339 East St, Graham, TX 76450-4228.
- What is William Martin's phone number?
- The practice phone number listed in the NPPES registry for William Martin is (940) 521-5500.
- 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 (1609844356) is active in the NPPES registry as of the last update on 2010-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.