Doctor profile · Federal record

Dr. WILLIAM GAMMILL, DO

Internal Medicine Physician (CMS: INTERNAL MEDICINE) · Pediatrics Physician · Emergency Medicine Physician · ENTERPRISE, AL

  • NPI 1437199908
  • Accepts Medicare
  • 23 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
101 E BRUNSON ST, SUITE 200
ENTERPRISE, AL 363302526
(334) 393-3686
fax (334) 347-4906

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
March 22, 2010
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Alabama #DO 868 · Alabama #DO868
Medicaid
AL #009980585

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437199908. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
9,415
Distinct HCPCS
10
Medicare allowed
$331,326
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,115 474 $116
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 769 441 $8
80053 Blood test, comprehensive group of blood chemicals 741 432 $10
80061 Blood test, lipids (cholesterol and triglycerides) 715 440 $13
81003 Automated urinalysis test 656 397 $2
84443 Blood test, thyroid stimulating hormone (tsh) 561 380 $16
36415 Insertion of needle into vein for collection of blood sample 515 358 $8
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 461 53 $58
J1100 Injection, dexamethasone sodium phosphate, 1 mg 416 49 $0
83036 Hemoglobin a1c level 335 225 $9

In context: peer comparison

Among 4 peers in this city , average services per provider: 150. This provider delivers 63× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,554
Transactions
107
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 21 $303.03
Novo Nordisk Inc 17 $190.36
Lilly USA, LLC 19 $184.89
AstraZeneca Pharmaceuticals LP 9 $169.68
PFIZER INC. 12 $145.45
Amgen Inc. 7 $114.80
Otsuka America Pharmaceutical, Inc. 5 $92.41
Boehringer Ingelheim Pharmaceuticals, Inc. 5 $77.50
GlaxoSmithKline, LLC. 4 $73.86
Axsome Therapeutics, Inc. 2 $37.43
Corium, LLC 1 $29.57
Exact Sciences Corporation 2 $27.02
Esperion Therapeutics, Inc. 1 $26.41
Sumitomo Pharma America, Inc. 1 $18.39
Averitas Pharma Inc. 1 $18.09

By nature of payment

Food and Beverage
$1,554

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
6,307
Patients
1,493
Total drug cost
$100,704
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 636 148 $12,347
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 564 82 $18,499
Atorvastatin Calcium Generic 505 131 $8,080
Omeprazole Generic 473 128 $7,975
Pantoprazole Sodium Generic 462 122 $8,183
Gabapentin Generic 457 94 $9,622
Tramadol Hcl Generic 433 77 $4,178
Amlodipine Besylate Generic 423 114 $4,283
Lisinopril Generic 407 106 $4,156
Alprazolam Generic 360 55 $2,443

Hospital affiliations

CMS Hospital Compare