NPPES file of Aug 9, 2026

Gregg Gordon Gerasimon, MD

Clinical Cardiac Electrophysiology Physician · San Antonio, TX

Gregg Gordon Gerasimon, MD is a clinical cardiac electrophysiology physician with a practice address in San Antonio, Texas, and NPI 1265592570, issued on Dec 11, 2006. Check the license (Texas P8585, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265592570
Name
Gregg Gordon Gerasimon
Credential
MD
Primary taxonomy
Clinical Cardiac Electrophysiology Physician 207RC0001X
License number
P8585 TX
Self-reported in NPPES; status is on the state search
Practice location
3551 Roger Brooke Dr, San Antonio, TX 78234
Phone
(210) 916-3839
Enumerated
Dec 11, 2006
Record last updated
May 2, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150813009649); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3551 Roger Brooke Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrew Aboujaoude, MDGeneral Practice Physician1548900343
  2. Richard Adams, RNRegistered Nurse1861202160
  3. Thomas Adams, MDAnatomic Pathology & Clinical Pathology Physician1215050497
  4. Jamilia Adams-Henderson, CRNACertified Registered Nurse Anesthetist1518211176
  5. Mabel Aguirre, IDMTIndependent Duty Medical Technicians1083009179
  6. Alejandro Alejandrez CisnerosGeneral Practice Physician1518568161

Verify Gregg Gordon Gerasimon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P8585
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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65% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024

590 Medicare Part D claims for 145 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Gregg Gerasimon590
  2. Specialty average1,710

Most prescribed

  1. Eliquis88 claims
  2. Amiodarone Hcl87 claims
  3. Flecainide Acetate70 claims
  4. Metoprolol Succinate65 claims
  5. Dofetilide57 claims
  6. Omeprazole35 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $920.66

26 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregg Gerasimon$921
  2. Specialty average$10,651

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Cardiology Clinic OF San Antonio, PLLCSan Antonio, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregg Gordon Gerasimon among 234 clinical cardiac electrophysiology physician records in Texas

Gregg Gordon Gerasimon, MD is one of 234 clinical cardiac electrophysiology physician records with a practice address in Texas. 98% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 58% newer
  • In a Medicare fileYes · 98% of these records are
  • In the CMS Doctors and Clinicians fileYes · 91% of these records are
  • Graduated1999 · median 2001 among the 214 with a school on file
  • Record last updated2014 · 29% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Cardiac Electrophysiology Physician providers in Texas

There are 234 clinical cardiac electrophysiology physician records in Texas.

The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes

  1. Andrea Keithler, D.O.Jbsa Ft Sam Houston, TX 782341285094482
  2. Cory Madigan, MDJbsa Fort Sam Houston, TX 782341104237635
  3. Mark Peele, M.D.Fort Sam Houston, TX 782341770686990
  4. Adam Price, M.D.Live Oak, TX 782331548447196
  5. Thor Tejada, M.D.Live Oak, TX 782331376701565
  6. Zalmen Blanck, MDSan Antonio, TX 782291912976481
  7. Wassim Choucair, M.D.San Antonio, TX 782291962496620
  8. Kiran Jayaram, MDSan Antonio, TX 782291992777320

Common questions

What is Gregg Gordon Gerasimon, MD's NPI number?

Gregg Gordon Gerasimon, MD's National Provider Identifier (NPI) is 1265592570, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregg Gordon Gerasimon, MD located?

The NPPES record lists a practice address at 3551 Roger Brooke Dr, San Antonio, TX, 78234. Phone: (210) 916-3839. Providers update this record themselves, so call before visiting.

How can I verify Gregg Gordon Gerasimon, MD's license?

NPPES lists Texas license number P8585, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregg Gordon Gerasimon, MD prescribe under Medicare Part D?

In 2024, Gregg Gordon Gerasimon, MD had 590 Medicare Part D claims for 145 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.

What is Gregg Gordon Gerasimon, MD's MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.