NPPES file of Aug 9, 2026

Guillermo P. Ponce De Leon, M.D.

Surgery Physician · Houston, TX

Guillermo P. Ponce De Leon, M.D. is a surgery physician with a practice address in Houston, Texas, and NPI 1609961697, issued on Oct 4, 2006. Check the license (Texas J4446, 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
1609961697
Name
Guillermo P. Ponce De Leon
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
J4446 TX
Self-reported in NPPES; status is on the state search
Practice location
7777 Southwest Fwy, Houston, TX 77074
Phone
(713) 772-1200
Enumerated
Oct 4, 2006
Record last updated
Jun 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(713) 772-0258
Medicaid ID
1376204-03 TX
Medicare enrollment
Enrolled (PECOS I20110204000442); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 1992
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 7777 Southwest Fwy

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

  1. Anitha Abraham, MDNeurology Physician1144456237
  2. Dilawar Ajani, M.D.Internal Medicine Physician1528047115
  3. Manaf Alroumoh, M.D.Nephrology Physician1548350614
  4. Charles Aramburo, M.D.Surgery Physician1427143452
  5. Mary Au, RPHPharmacist1417285651
  6. Elzbieta Baranowska-Daca, MDNephrology Physician1154348142

Verify Guillermo P. Ponce De Leon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J4446
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.0 times the Medicare Part D claims of the average surgery physician in 2024

294 Medicare Part D claims for 190 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 191 claims were for opioids.

  1. Guillermo Ponce De Leon294
  2. Specialty average147

Most prescribed

  1. Acetaminophen-Codeine158 claims
  2. Tramadol Hcl26 claims
  3. Clindamycin Hcl12 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Industry payments in 2024: $2,046.76

17 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Guillermo Ponce De Leon$2,046.76
  2. Specialty average$3,513.80

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. Southwest Surgical Associates LLPStafford, TX

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

Guillermo P. Ponce De Leon among 2,192 surgery physician records in Texas

Guillermo P. Ponce De Leon, M.D. is one of 2,192 surgery physician records with a practice address in Texas. 76% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 58% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1992 · median 2004 among the 1,350 with a school on file
  • Record last updated2021 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Texas

There are 2,192 surgery physician records in Texas.

The 8 surgery physician records with the nearest ZIP codes

  1. Charles Aramburo, M.D.Houston, TX 770741427143452
  2. Tina Chung, MDHouston, TX 770741093209736
  3. John Fisher, MDHouston, TX 770741093800732
  4. Uri Gedalia, M.D.Houston, TX 770741750562799
  5. Thirumalairaj Jayakumar, M.D.Houston, TX 770741619041175
  6. Ira Kasper, MDHouston, TX 770741164439220
  7. Michael Kleinman, MDHouston, TX 770741427059187
  8. Arlene Ricardo, MDHouston, TX 770741750363495

Common questions

What is Guillermo P. Ponce De Leon, M.D.'s NPI number?

Guillermo P. Ponce De Leon, M.D.'s National Provider Identifier (NPI) is 1609961697, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Guillermo P. Ponce De Leon, M.D. located?

The NPPES record lists a practice address at 7777 Southwest Fwy, Houston, TX, 77074. Phone: (713) 772-1200. Providers update this record themselves, so call before visiting.

How can I verify Guillermo P. Ponce De Leon, M.D.'s license?

NPPES lists Texas license number J4446, 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 Guillermo P. Ponce De Leon, M.D. prescribe under Medicare Part D?

In 2024, Guillermo P. Ponce De Leon, M.D. had 294 Medicare Part D claims for 190 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

What is Guillermo P. Ponce De Leon, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.