Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Howdy Internal Medicine

Internal Medicine Physician in Floresville, TX · enumerated 2008 · authorized official Mark Hennessy, MD.

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

National Provider Identifier

1386803104

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Registry record

Entity type Organization (Type 2)

Legal business name Howdy Internal Medicine

Practice address 104 Turner Ln, Floresville, TX, 78114

Phone (830) 393-7771

Fax (830) 393-7775

Enumeration date Jun 6, 2008

Last updated in NPPES Sep 14, 2011

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 9500093 (NC) Primary

Authorized official

Name Mark Hennessy

Title MD

Phone (830) 393-7771

Other identifiers

Identifier	Type	State	Issuer
8941696	Medicaid	NC	-
89016NE	Medicaid	NC	-
2215978	Other	NC	MEDICARE

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 is Howdy Internal Medicine located?

The practice location on file with NPPES is in Floresville, TX.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-09-14. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-14.