Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark L. Hill, MD

Q: What is the NPI number for Mark Hill?

The National Provider Identifier (NPI) for Mark Hill is 1366737819, a Type 1 (individual) record in the CMS NPPES registry.

Ophthalmology Physician in Layton, UT · enumerated 2011.

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

National Provider Identifier

1366737819

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark L. Hill

Credential MD

Sex Male

Practice address 2255 N 1700 W Ste 100, Layton, UT, 84041

Phone (801) 773-0690

Fax (801) 773-0697

Enumeration date Jun 13, 2011

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 55061081205 (UT) Primary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 15817 (NV) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mark Hill practice?

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

What is the NPI number for Mark Hill?

The National Provider Identifier (NPI) for Mark Hill is 1366737819, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.