NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark A. Collazo, FNP

Family Nurse Practitioner in San Antonio, TX · enumerated 2013.

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

National Provider Identifier

1437593696

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mark A. Collazo
Credential FNP
Sex Male
Practice address 1 Haven for Hope Way Ste 300, San Antonio, TX, 78207
Phone (210) 922-7000
Fax (210) 220-2332
Enumeration date Apr 18, 2013
Last updated in NPPES May 4, 2020

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 675516 (TX) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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 Mark Collazo?
The National Provider Identifier (NPI) for Mark Collazo is 1437593696, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Collazo 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 2020-05-04.