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Dr. Gregory Dean Dietrich, MD

Orthopaedic Surgery of the Spine Physician in Lewiston, ID · enumerated 2005.

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

National Provider Identifier

1306831698

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregory Dean Dietrich
Credential MD
Sex Male
Practice address 320 Warner Drive, Lewiston, ID, 83501
Phone (208) 743-3523
Fax (208) 746-8741
Enumeration date Sep 13, 2005
Last updated in NPPES Jun 30, 2026

Taxonomy & licenses

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 00034506 (WA) Secondary
207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License M7482 (ID) 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
74823 Other ID BCI
805208800 Medicaid ID -
000010004322 Other ID REGENCE
8204851 Medicaid WA -

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

What specialty is Gregory Dietrich?
Gregory Dietrich is registered in NPPES with the primary taxonomy of Orthopaedic Surgery of the Spine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-30.