Doctor profile · Federal record

Dr. William Callahan, D.D.S.

Dentist · Huntsville, AL

  • NPI 1063636827
  • 19 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2045 Cecil Ashburn Dr Se Ste 203
Huntsville, AL 358022564
(256) 885-0225
fax (256) 885-0128

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
122300000X — NUCC code
State license (1)
Alabama #5176

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1063636827. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$35
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Dentsply Sirona Inc 2 $35.37

By nature of payment

Food and Beverage
$35

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
36
Patients
31
Total drug cost
$360
Drug Type Claims Patients Total cost
Amoxicillin Generic 19 16 $46
Cephalexin Generic 17 15 $314

Frequently asked questions

Auto-generated from federal data
What is Dr. William Callahan's medical specialty?
Dr. William Callahan practices Dentist in Huntsville, AL.
Where does Dr. William Callahan practice?
Dr. William Callahan practices at 2045 Cecil Ashburn Dr Se Ste 203, Huntsville, AL 358022564. Office phone: 2568850225.
What is Dr. William Callahan's NPI?
Dr. William Callahan's National Provider Identifier (NPI) is 1063636827, issued by NPPES.