William Gammill, DO
NPI 1437199908 · Internal Medicine Physician · Enterprise, AL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Gammill, DO is a Internal Medicine Physician provider in Enterprise, AL (NPI 1437199908).
Provider details
- NPI number
- 1437199908
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- DO868 (AL)
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 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
8,424 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 860 | $115 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 697 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 672 | $10 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 651 | $16 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 646 | $13 |
| Automated Urinalysis Test81003 | 578 | $2 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 214 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 648 | 153 |
| Atorvastatin Calcium | 569 | 145 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 494 | 64 |
| Omeprazole | 487 | 131 |
| Lisinopril | 458 | 118 |
| Pantoprazole Sodium | 435 | 119 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,554 across 110 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
- 2006-06-06
- Last updated
- 2010-03-22
Frequently asked questions
- What is William Gammill's NPI number?
- William Gammill's National Provider Identifier (NPI) is 1437199908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gammill's specialty?
- William Gammill is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Gammill located?
- William Gammill's practice location on file with NPPES is 101 E Brunson St, Enterprise, AL 36330-2526.
- What is William Gammill's phone number?
- The practice phone number listed in the NPPES registry for William Gammill is (334) 393-3686.
- Does William Gammill accept Medicare?
- William Gammill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Gammill's NPI active?
- Yes — William Gammill's NPI (1437199908) is active in the NPPES registry as of the last update on 2010-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.