Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stephen James Mularz, D.O.

Gastroenterology Physician in Hazard, KY · enumerated 2014.

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

National Provider Identifier

1982018156

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Registry record

Entity type Individual (Type 1)

Name Dr. Stephen James Mularz

Credential D.O.

Sex Male

Practice address 200 Medical Center Dr, Hazard, KY, 41701

Phone (606) 439-3952

Fax (606) 439-8493

Enumeration date Jun 16, 2014

Last updated in NPPES Jul 31, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License E000 (KY) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License E000 (KY) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
04868	Other	KY	LICENSE

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Stephen Mularz?

The National Provider Identifier (NPI) for Stephen Mularz is 1982018156, a Type 1 (individual) record in the CMS NPPES registry.

Where does Stephen Mularz practice?

The practice location on file with NPPES is in Hazard, KY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-31.