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Mark D Hiatt, MD

Diagnostic Radiology Physician in Tyler, TX · enumerated 2006 · practices at Christus Trinity Clinic.

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

National Provider Identifier

1396719597

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Registry record

Entity type Individual (Type 1)
Name Mark D Hiatt
Credential MD
Sex Male
Practice address 520 Douglas Blvd, Tyler, TX, 75702
Phone (903) 510-1175
Fax (903) 510-8806
Enumeration date Feb 14, 2006
Last updated in NPPES Mar 29, 2010

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License L8075 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
175371702 Medicaid TX -
175371701 Medicaid TX -

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

Where does Mark Hiatt practice?
The practice location on file with NPPES is in Tyler, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Hiatt?
The National Provider Identifier (NPI) for Mark Hiatt is 1396719597, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-29.