Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald Mario Robert Harker, MD

Hospitalist Physician in Reno, NV · enumerated 2021.

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

National Provider Identifier

1457934838

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald Mario Robert Harker

Credential MD

Sex Male

Practice address 6500 Longley Ln, Reno, NV, 89511

Phone (775) 799-7320

Enumeration date May 3, 2021

Last updated in NPPES Jul 26, 2025

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 25741 (NV) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 25741 (NV) 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.

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Frequently asked questions

How do I verify Donald Harker's NPI record?

Cross-check NPI 1457934838 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1457934838 active?

Yes, as of the latest NPPES snapshot, NPI 1457934838 is active (record last updated 2025-07-26).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-26.