Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David L. Diedrichsen, M.D.

Internal Medicine Physician in Reno, NV · enumerated 2006.

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

National Provider Identifier

1871687897

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Registry record

Entity type Individual (Type 1)

Name David L. Diedrichsen

Credential M.D.

Sex Male

Practice address 75 Pringle Way, Suite 601, Reno, NV, 89502

Phone (775) 326-8380

Fax (775) 786-8684

Enumeration date Oct 3, 2006

Last updated in NPPES Apr 22, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 3056 (NV) Primary

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

Other identifiers

Identifier	Type	State	Issuer
P00253305	Other	NV	RAILROAD MEDICARE

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 David Diedrichsen practice?

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

What is the NPI number for David Diedrichsen?

The National Provider Identifier (NPI) for David Diedrichsen is 1871687897, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-22.