Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tiffany Dawn Riordan, M.D.

Emergency Medicine Physician in Brenham, TX · enumerated 2006.

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

National Provider Identifier

1457396087

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Registry record

Entity type Individual (Type 1)

Name Tiffany Dawn Riordan

Credential M.D.

Sex Female

Practice address 700 Medical Pkwy, Brenham, TX, 77833

Phone (800) 994-0371

Fax (254) 215-9722

Enumeration date Jun 18, 2006

Last updated in NPPES Sep 5, 2025

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License M8955 (TX) 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
20055495	Other	PA	AMERIHEALTH MERCY-YH
P00341561	Other	PA	RAILROAD MEDICARE
2592	Other	PA	GEISINGER-YH
1865780	Other	PA	HIGHMARK BLUE SHIELD-YH
50067239	Other	PA	CAPITAL BLUE CROSS-YH
203883	Other	PA	JOHNS HOPKINS
101648686	Medicaid	PA	-
1548643	Other	PA	GATEWAY-YH
200941	Other	PA	UNISON YH
2724605000	Other	PA	AMERIHEALTH 65 PA-YH

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

Where does Tiffany Riordan practice?

The practice location on file with NPPES is in Brenham, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Tiffany Riordan?

The National Provider Identifier (NPI) for Tiffany Riordan is 1457396087, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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John Mcintire Diagnostic Radiology Physician · Brenham, TX NPI 1285637363 Mahmud Ali Anesthesiology Physician · Brenham, TX NPI 1063416402 Scott & White Hospital Brenham Critical Access Hospital · Brenham, TX NPI 1154315307 Timothy Osborn Anesthesiology Physician · Brenham, TX NPI 1144218330 Brenham Anesthesia Associates PA Anesthesiology Physician · Brenham, TX NPI 1043294879 Gary Harrison Certified Registered Nurse Anesthetist · Brenham, TX NPI 1639141849 Joel Schretenthaler Certified Registered Nurse Anesthetist · Brenham, TX NPI 1144288838 Veronica Paramore Medical Physician Assistant · Brenham, TX NPI 1700814662

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-05.