Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Zaray Tashjian, MD

Orthopaedic Surgery Physician in Salt Lake City, UT · enumerated 2006.

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

National Provider Identifier

1659300044

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Zaray Tashjian

Credential MD

Sex Male

Practice address 590 Wakara Way, Salt Lake City, UT, 84108

Phone (801) 581-3998

Enumeration date Jun 30, 2006

Last updated in NPPES Dec 20, 2021

Taxonomy & licenses

171000000X Military Health Care Provider Other Service Providers · License 6209402-1205 (UT) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 6209402-1205 (UT) 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

What specialty is Robert Tashjian?

Robert Tashjian is registered in NPPES with the primary taxonomy of Orthopaedic Surgery 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 2021-12-20.