Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Michael Bolak, D.M.D.

Endodontics in Plano, TX · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255412979

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Registry record

Entity type Individual (Type 1)

Name Dr. William Michael Bolak

Credential D.M.D.

Sex Male

Practice address 5509 Pleasant Valley Dr, Suite 700, Plano, TX, 75023

Phone (972) 964-3636

Fax (972) 519-0127

Enumeration date Oct 18, 2006

Last updated in NPPES Jul 11, 2007

Taxonomy & licenses

1223E0200X Endodontics Dental Providers · License 17551 (TX) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1255412979 active?

Yes, as of the latest NPPES snapshot, NPI 1255412979 is active (record last updated 2007-07-11).

How do I verify William Bolak's NPI record?

Cross-check NPI 1255412979 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Christina Thibodeaux Medical Physician Assistant · Plano, TX NPI 1639133267 Wm Bolak, Dmd & Associates, P.A. Endodontics · Plano, TX NPI 1386725000 Dermatology Center of Plano Dermatology Physician · Plano, TX NPI 1992868426 Patricia Kellar General Practice Dentistry · Plano, TX NPI 1134265952 Aleksandra Morel General Practice Dentistry · Plano, TX NPI 1548386345 Floyd Slater General Practice Dentistry · Plano, TX NPI 1407974793 Afr Dental General Practice Dentistry · Plano, TX NPI 1336268861 John Redington General Practice Dentistry · Plano, TX NPI 1750505038

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-11.