NPPES file of Aug 9, 2026

Madeleine Gantz, MD

Dermatology Physician · Houston, TX

Madeleine Gantz, MD is a dermatology physician with a practice address in Houston, Texas, and NPI 1821526674, issued on May 24, 2017. Check the license (Texas T0487, 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
1821526674
Name
Madeleine Gantz
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
T0487 TX
Self-reported in NPPES; status is on the state search
Practice location
1900 Saint James PL Ste 600, Houston, TX 77056
Phone
(713) 850-0240
Enumerated
May 24, 2017
Record last updated
Jul 25, 2022
Medicare enrollment
Enrolled (PECOS I20210720001412); accepts Medicare assignment
Medical or professional school
Drexel University College Of Medicine, 2017
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 1900 Saint James PL Ste 600

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

  1. Alissa Adler, MDDermatology Physician1710516497
  2. Ryan Couvillion, M.D.Plastic and Reconstructive Surgery Physician1760706774

Verify Madeleine Gantz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license T0487
    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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85% fewer Medicare Part D claims than the average dermatology physician in 2024

123 Medicare Part D claims for 53 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.

  1. Madeleine Gantz123
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide20 claims
  2. Clobetasol Propionate17 claims
  3. Valacyclovir15 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): 98.3 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%98.0
  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: $840.79

19 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Madeleine Gantz$840.79
  2. Specialty average$8,544.61

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. Westlake Dermatology PAAustin, TX

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

Madeleine Gantz among 1,172 dermatology physician records in Texas

Madeleine Gantz, MD is one of 1,172 dermatology physician records with a practice address in Texas. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 79% of them.

  • NPI issued2017 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2017 · median 2008 among the 926 with a school on file
  • Record last updated2022 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Texas

There are 1,172 dermatology physician records in Texas.

The 8 dermatology physician records with the nearest ZIP codes

  1. Alissa Adler, MDHouston, TX 770561710516497
  2. Suzanne Bruce, M.D.Houston, TX 770561588661979
  3. Charles Doubleday, MDHouston, TX 770561508869991
  4. Leigh Eubanks, M.D.Houston, TX 770561780681171
  5. Kudakwashe Maloney, M.DHouston, TX 770561851528228
  6. Seymour Weaver, MDHouston, TX 770561225126956
  7. John Griffin, MDHouston, TX 770551548490212
  8. Kehinde Ogunmakin, M.DHouston, TX 770571659651008

Common questions

What is Madeleine Gantz, MD's NPI number?

Madeleine Gantz, MD's National Provider Identifier (NPI) is 1821526674, issued on May 24, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Madeleine Gantz, MD located?

The NPPES record lists a practice address at 1900 Saint James PL Ste 600, Houston, TX, 77056. Phone: (713) 850-0240. Providers update this record themselves, so call before visiting.

How can I verify Madeleine Gantz, MD's license?

NPPES lists Texas license number T0487, 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 Madeleine Gantz, MD prescribe under Medicare Part D?

In 2024, Madeleine Gantz, MD had 123 Medicare Part D claims for 53 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Madeleine Gantz, MD's MIPS final score?

The 2023 MIPS final score is 98.3 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.