NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catherine L. Kowalewski, D.O.

Procedural Dermatology Physician in San Antonio, TX · enumerated 2007.

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

National Provider Identifier

1801079876

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Catherine L. Kowalewski
Credential D.O.
Sex Female
Practice address 7400 Merton Minter St, Va Medical Center Dermatology Clinic 1d, San Antonio, TX, 78229
Fax (210) 949-3107
Enumeration date Dec 12, 2007
Last updated in NPPES Jul 15, 2014

Taxonomy & licenses

207NS0135X Procedural Dermatology Physician Allopathic & Osteopathic Physicians · License N0184 (TX) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

What is the NPI number for Catherine Kowalewski?
The National Provider Identifier (NPI) for Catherine Kowalewski is 1801079876, a Type 1 (individual) record in the CMS NPPES registry.
Where does Catherine Kowalewski practice?
The practice location on file with NPPES is in San Antonio, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-15.