GREGG GORDON GERASIMON in San Antonio, TX

NPPES name and NPI

Dr. GREGG GORDON GERASIMON is in this directory because NPI 1265592570 is an individual (NPI-1) with a San Antonio, Texas LOCATION address and at least one adult cardiology taxonomy. The check date for the license crosswalk is 2026-11-09.

NPPES basic.first_name is GREGG. basic.middle_name is GORDON. basic.last_name is GERASIMON. basic.credential is MD. basic.name_prefix is Dr.. basic.sex is M. basic.sole_proprietor is NO. basic.status is A.

NPPES enumeration_date is 2006-12-11. NPPES last_updated is 2014-05-02. Those dates belong to the registry row, not to a visit this site observed.

The credential or prefix string is one this directory treats as a physician-style credential (MD, DO, MBBS, or MBChB, or a Dr. prefix when the credential is blank). That is a label from NPPES, not a board certification.

Taxonomy codes on this NPI

The primary code used for the heading is 207RC0001X (Internal Medicine, Clinical Cardiac Electrophysiology). A person can carry more than one cardiology code. Codes are not a ranking.

Primary taxonomy 207RC0001X (Internal Medicine, Clinical Cardiac Electrophysiology), state TX, license string P8585. Additional taxonomy 207RC0000X (Internal Medicine, Cardiovascular Disease), state TX, license string P8585.

Texas Medical Board crosswalk

Join method for this NPI: license. The crosswalk file is data/datos5/matches.json, built from NPPES license strings against Texas open data set tm3v-pfq9. Date of that file: 2026-11-09.

The crosswalk marks currently_licensed as Y. License number on the matched row: P8585. registration_status: ACTIVE. license_status: NONE.

disciplinary_status is NONE on the matched row. A value of NONE means the field was NONE in the file, not a promise about future complaints.

TMB practice_city on the matched row is MISSOULA. The street on this page is the NPPES LOCATION address in San Antonio. They are different fields and this site does not merge them into one story.

NPPES does not prove a state license. That is why the TMB field is shown next to the NPI. If the fields disagree, both are shown and neither is smoothed over.

Practice location and phone

NPPES LOCATION address_1 is 3551 ROGER BROOKE DR. Normalized grouping key, with suite stripped: 3551 ROGER BROOKE DR, San Antonio, TX 78234. ZIP5 is 78234. postal_code as stored is 782344504.

One San Antonio LOCATION row was stored for this NPI.

Telephone on the first San Antonio LOCATION is 210-916-3839. The call link uses that number. This site has not called it and does not know the office hours.

No fax was stored on that LOCATION.

What this page does not show

This build does not have a CMS Medicare assignment file, so it does not say whether the clinician accepts Medicare or Medicare Advantage. It does not have a confirmed language field, office hours, hospital privileges, or a quality score.

There is no rating, no ranking, and no 'best' list. The profile is not claimed. Nothing on this page is a diagnosis or a recommendation to start, stop, or change care.

To check the license, use the Texas Medical Board public lookup and the NPI Registry. This website is not those agencies.

Other cardiology NPI-1 rows at the same normalized address

Other adult rows in ZIP 78234

5 other adult cardiology NPI rows use ZIP 78234. This is a ZIP match, not a recommendation.