William Shawn Callahan, D.D.S.
Dentist · Huntsville, AL
William Shawn Callahan, D.D.S. is a dentist with a practice address in Huntsville, Alabama, and NPI 1063636827, issued on Apr 12, 2007. Check the license (Alabama 5176, as entered in NPPES) with the Alabama board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Shawn Callahan
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 5176 AL
Self-reported in NPPES; status is on the state search - Practice location
- 2045 Cecil Ashburn Dr SE Ste 203, Huntsville, AL 35802
- Phone
- (256) 885-0225
- Enumerated
- Apr 12, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (256) 885-0128
- Entity
- Type 1 · individual
8 nearest dentist records → All 841 in Alabama → Look up another NPI →
Verify William Shawn Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Alabama board licenses this profession
Search for license 5176Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average dentist in 2024
49 Medicare Part D claims for 34 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Cephalexin19 claims
- Amoxicillin13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $35.37
2 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William Shawn Callahan among 841 dentist records in Alabama
William Shawn Callahan, D.D.S. is one of 841 dentist records with a practice address in Alabama. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 61% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Alabama
There are 841 dentist records in Alabama.
All 841 in Alabama → Every provider in Huntsville → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Cary Collins, DMDHuntsville, AL 358021477604767
- John Deshazo, D.M.D.Huntsville, AL 358021215097563
- Donna Smith, DMDHuntsville, AL 358021447670567
- Robert Stephenson, D.M.D.Huntsville, AL 358021598850794
- Khushboo Aggarwal, DMDHuntsville, AL 358011760962161
- Nathanael Baker, D.D.S.Huntsville, AL 358011730520727
- John Barnes, D.M.D.Huntsville, AL 358011861650905
- Sarah Ellis, D.M.DHuntsville, AL 358011285921510
Common questions
What is William Shawn Callahan, D.D.S.'s NPI number?
William Shawn Callahan, D.D.S.'s National Provider Identifier (NPI) is 1063636827, issued on Apr 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Shawn Callahan, D.D.S. located?
The NPPES record lists a practice address at 2045 Cecil Ashburn Dr SE Ste 203, Huntsville, AL, 35802. Phone: (256) 885-0225. Providers update this record themselves, so call before visiting.
How can I verify William Shawn Callahan, D.D.S.'s license?
NPPES lists Alabama license number 5176, as entered by the provider. Search the Alabama board that licenses this profession; the NPPES record confirms identity only.
How much does William Shawn Callahan, D.D.S. prescribe under Medicare Part D?
In 2024, William Shawn Callahan, D.D.S. had 49 Medicare Part D claims for 34 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.