NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey R Horwitz, MD

Surgery Physician in Austin, TX · enumerated 2005.

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

National Provider Identifier

1083617369

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Jeffrey R Horwitz
Credential MD
Sex Male
Practice address 1301 Barbara Jordan Blvd, Suite 400, Austin, TX, 78723
Phone (512) 708-1234
Fax (512) 708-4567
Enumeration date May 31, 2005
Last updated in NPPES Feb 2, 2012

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License H4422 (TX) Primary
2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License H4422 (TX) Secondary
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
139431401 Medicaid TX -
112887805 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 Jeffrey Horwitz practice?
The practice location on file with NPPES is in Austin, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jeffrey Horwitz?
The National Provider Identifier (NPI) for Jeffrey Horwitz is 1083617369, 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 2012-02-02.