Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nicole Davis Riordan, M.D.

Emergency Medicine Physician in South Bend, IN · enumerated 2007.

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

National Provider Identifier

1407051634

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Registry record

Entity type Individual (Type 1)

Name Nicole Davis Riordan

Credential M.D.

Sex Female

Practice address 615 N Michigan St, South Bend, IN, 46601

Phone (574) 647-7459

Fax (574) 647-3658

Enumeration date Jun 18, 2007

Last updated in NPPES Jun 27, 2016

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 01065523A (IN) 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
P00891626/CD	Other	IN	RR MEDICARE
000000655105	Other	IN	ANTHEM
200981060	Medicaid	IN	-

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

How do I verify Nicole Riordan's NPI record?

Cross-check NPI 1407051634 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1407051634 active?

Yes, as of the latest NPPES snapshot, NPI 1407051634 is active (record last updated 2016-06-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-27.