Doctor profile · Federal record

Dr. William Halama, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Birmingham, AL

  • NPI 1477591071
  • Accepts Medicare
  • 41 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
513 Brookwood Blvd, Suite 401
Birmingham, AL 352096862
(205) 870-0256
fax (205) 870-7107

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
August 7, 2008
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Alabama #12940
Medicaid
AL #000028523

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1477591071. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
372
Distinct HCPCS
10
Medicare allowed
$44,451
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 89 62 $83
45380 Biopsy of large bowel using a flexible endoscope 45 45 $98
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45 45 $234
99214 Established patient office or other outpatient visit, 30-39 minutes 45 41 $116
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 36 35 $80
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 35 24 $74
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 27 27 $163
99204 New patient office or other outpatient visit, 45-59 minutes 24 24 $155
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 14 14 $169
76700 Complete ultrasound scan of abdomen 12 12 $79

In context: peer comparison

Among 33 peers in this city , average services per provider: 63. This provider delivers 5.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,872
Transactions
104
Manufacturers
14
Payer (manufacturer) Industry Txns Amount
Salix Pharmaceuticals, a division of Bausch Health US, LLC 28 $553.91
ABBVIE INC. 24 $405.52
Janssen Biotech, Inc. 15 $258.05
PFIZER INC. 12 $193.23
Takeda Pharmaceuticals U.S.A., Inc. 7 $115.72
Celltrion USA Inc. 4 $75.63
Celgene Corporation 3 $58.33
Ardelyx, Inc. 2 $42.54
Merck Sharp & Dohme LLC 2 $38.15
Phathom Pharmaceuticals, Inc. 2 $35.89
Madrigal Pharmaceuticals 2 $34.27
Gilead Sciences, Inc. 1 $21.84
Organon Llc 1 $20.57
IRONWOOD PHARMACEUTICALS, INC 1 $18.78

By nature of payment

Food and Beverage
$1,820
Education
$53

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
961
Patients
418
Total drug cost
$111,274
Drug Type Claims Patients Total cost
Omeprazole Generic 174 70 $2,883
Pantoprazole Sodium Generic 132 42 $2,710
Sutab (Sod Sulf/Pot Chloride/Mag Sulf) Brand 120 118 $19,233
Famotidine Generic 91 47 $1,488
Sucralfate Generic 87 28 $2,953
Linzess (Linaclotide) Brand 79 26 $60,493
Dicyclomine Hcl Generic 51 23 $1,125
Nortriptyline Hcl Generic 44 14 $434
Ondansetron Hcl Generic 39 17 $1,432
Promethazine Hcl Generic 29 11 $246

Frequently asked questions

Auto-generated from federal data
What is Dr. William Halama's medical specialty?
Dr. William Halama practices Gastroenterology Physician in Birmingham, AL.
Where does Dr. William Halama practice?
Dr. William Halama practices at 513 Brookwood Blvd, Birmingham, AL 352096862. Office phone: 2058700256.
What is Dr. William Halama's NPI?
Dr. William Halama's National Provider Identifier (NPI) is 1477591071, issued by NPPES.
Does Dr. William Halama accept Medicare assignment?
Yes. Dr. William Halama accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Halama commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.