Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Douglas P Marx, MD

Ophthalmology Physician in Salt Lake City, UT · enumerated 2008.

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

National Provider Identifier

1013177682

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Registry record

Entity type Individual (Type 1)

Name Douglas P Marx

Credential MD

Sex Male

Practice address 4400 S 700 E Ste 130, Salt Lake City, UT, 84107

Phone (801) 264-4420

Fax (801) 266-0604

Enumeration date Jun 16, 2008

Last updated in NPPES Apr 30, 2024

Taxonomy & licenses

207WX0200X Ophthalmic Plastic and Reconstructive Surgery Physician Allopathic & Osteopathic Physicians · License 10382570-1205 (UT) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License N9740 (TX) Primary

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

How do I verify Douglas Marx's NPI record?

Cross-check NPI 1013177682 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1013177682 active?

Yes, as of the latest NPPES snapshot, NPI 1013177682 is active (record last updated 2024-04-30).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-30.