WILLIAM SHAWN CALLAHAN D.D.S.
NPI 1063636827
Dentist in Huntsville, AL

Q: What is William Callahan's NPI number?

The NPI number for William Callahan is 1063636827. It was assigned to this individual provider in the NPPES registry on April 12, 2007.

Q: What is William Callahan's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Q: Is William Callahan enrolled in Medicare?

No. William Callahan has opted out of Medicare through January 10, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for William Callahan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 12, 2007Opted out of Medicare · through Jan 10, 2027

2045 CECIL ASHBURN DR SE STE 203, HUNTSVILLE, AL 35802(256) 885-0225(256) 885-0128 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About William Shawn Callahan D.d.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM SHAWN CALLAHAN D.D.S. (NPI 1063636827) is an individual dentist in Huntsville, Alabama, licensed in Alabama (5176) and active in the NPI registry since April 2007. He has opted out of Medicare through January 10, 2027.

NPPES Registry Identity

NPI1063636827

Entity TypeIndividualMale

Primary Taxonomy122300000X

Provider Legal NameWILLIAM SHAWN CALLAHANCredential: D.D.S.

Location Address2045 CECIL ASHBURN DR SE STE 203Huntsville, AL 35802-2564

Mailing Address2045 Cecil Ashburn Dr Se Ste 203Huntsville, AL 35802-2564 · (256) 885-0225 · Fax (256) 885-0128

Phone(256) 885-0225

Fax(256) 885-0128

Sole ProprietorYes

Enumeration DateApril 12, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1063636827 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers

Taxonomy Code122300000X

License✔ Licensed in AL · 5176

Definition

A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.

2045 CECIL ASHBURN DR SE STE 203, Huntsville, AL 35802

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BEST Life, Blue Cross and Blue Shield of Alabama, Blue Cross and Blue Shield of Montana and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

William Shawn Callahan D.d.s. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 10, 2023 through January 10, 2027.

Opt-Out Effective DateJanuary 10, 2023

Opt-Out In Effect ThroughJanuary 10, 2027Opt-out affidavits renew automatically every two years unless cancelled

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Callahan's NPI number?

The NPI number for William Callahan is 1063636827. It was assigned to this individual provider in the NPPES registry on April 12, 2007.

Where is William Callahan located?

William Callahan practices at 2045 Cecil Ashburn Dr SE Ste 203, Huntsville, AL 35802. The listed phone number is (256) 885-0225.

What is William Callahan's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is William Callahan enrolled in Medicare?

No. William Callahan has opted out of Medicare through January 10, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

What insurance does William Callahan accept?

Health plans from BEST Life, Blue Cross and Blue Shield of Alabama, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 6 other insurers list William Callahan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Callahan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.