Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Shahin Shahnia, M.D.

Internal Medicine Physician in Eau Claire, WI · enumerated 2008.

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

National Provider Identifier

1598938946

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Registry record

Entity type Individual (Type 1)

Name Dr. Shahin Shahnia

Credential M.D.

Sex Male

Practice address 2809 E Hamilton Ave, Suite 107, Eau Claire, WI, 54701

Phone (715) 834-1555

Fax (715) 835-0263

Enumeration date Apr 7, 2008

Last updated in NPPES Mar 14, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 54997-20 (WI) Primary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 54997-20 (WI) Secondary

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
61113	Other	WI	DEAN HEALTH PLAN

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

How do I verify Shahin Shahnia's NPI record?

Cross-check NPI 1598938946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598938946 active?

Yes, as of the latest NPPES snapshot, NPI 1598938946 is active (record last updated 2013-03-14).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-14.