Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mark D. Sims, MD

Hospitalist Physician in Salt Lake City, UT · enumerated 2012.

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

National Provider Identifier

1376806745

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mark D. Sims

Credential MD

Sex Male

Practice address Salt Lake City, UT, 84132

Phone (801) 585-1686

Enumeration date Jun 20, 2012

Last updated in NPPES Mar 27, 2026

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

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A129202 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 12229890-1205 (UT) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A129202 (CA) Secondary

207RH0002X Hospice and Palliative Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 12229890-1205 (UT) 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

Is NPI 1376806745 active?

Yes, as of the latest NPPES snapshot, NPI 1376806745 is active (record last updated 2026-03-27).

How do I verify Mark Sims's NPI record?

Cross-check NPI 1376806745 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-27.