NPI Portal NPI Lookup & Verification

Dr. John Michael Dulak, DC

Dr. John Michael Dulak is a Chiropractor provider (Chiropractor) practicing in Corpus Christi, TX, registered in the NPPES registry with NPI 1457332678 since 2005. The credential DC stands for Doctor of Chiropractic. Practices at John M Dulak Chiropractor PC (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1457332678
Entity type Individual (Type 1)
Name Dr. John Michael Dulak
Credential DC
Sex Male
Practice address Corpus Christi, TX, 78404
Phone 3618847187
Fax 3618827350
Enumeration date 2005-11-07
Last updated in NPPES 2014-01-29

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary 2380 TX

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Copy-ready billing details
Provider: John Dulak, DC
NPI: 1457332678
Taxonomy: 111N00000X (Chiropractor)
Address: Corpus Christi, TX, 78404

Other providers at this practice address

NPI Name Type Specialty Location
1942525514 John M Dulak Chiropractor PC Organization Chiropractor Corpus Christi, TX

Verify this record

Cross-check NPI 1457332678 against the authoritative CMS record: view Dr. John Michael Dulak on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What is the NPI number for John Dulak?
The National Provider Identifier (NPI) for John Dulak is 1457332678, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Dulak practice?
The practice location on file with NPPES is in Corpus Christi, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-01-29.