Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Tracy S Byrne, M.D.

Obstetrics & Gynecology Physician in South Bend, IN · enumerated 2005.

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

National Provider Identifier

1639169733

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Registry record

Entity type Individual (Type 1)

Name Dr. Tracy S Byrne

Credential M.D.

Sex Female

Practice address 6301 University Commons, Suite 310, South Bend, IN, 46635

Phone (574) 232-1471

Fax (574) 239-8511

Enumeration date Oct 28, 2005

Last updated in NPPES Sep 6, 2011

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 10357 (NH) 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
30011688	Medicaid	NH	-
HL0041	Other	NH	HARVARD PILGRIM
364352	Other	NH	MVP
0704678	Other	NH	UNITED HEALTH CARE
5084658	Other	NH	AETNA
NH0008644	Other	NH	CHAMPUS
0105013Y0NH02	Other	NH	BLUE CROSS BLUE SHIELD
2690350	Other	NH	CIGNA

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

Is NPI 1639169733 active?

Yes, as of the latest NPPES snapshot, NPI 1639169733 is active (record last updated 2011-09-06).

How do I verify Tracy Byrne's NPI record?

Cross-check NPI 1639169733 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-06.