NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leo C Tynan, MD

Internal Medicine Physician in Fredericksburg, TX · enumerated 2006 · practices at Fredericksburg Clinic, Pllc.

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

National Provider Identifier

1811937303

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Leo C Tynan
Credential MD
Sex Male
Practice address 1308 South Highway 16, Fredericksburg, TX, 78624
Phone (830) 997-2181
Fax (830) 997-9598
Enumeration date Jun 7, 2006
Last updated in NPPES Apr 4, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License H0895 (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
114860303 Medicaid TX -

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 Leo Tynan practice?
The practice location on file with NPPES is in Fredericksburg, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Leo Tynan?
The National Provider Identifier (NPI) for Leo Tynan is 1811937303, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-04.