NPPES file of Aug 9, 2026

James A. Maher, MD

Gastroenterology Physician · Houston, TX

James A. Maher, MD is a gastroenterology physician with a practice address in Houston, Texas, and NPI 1497743165, issued on Oct 7, 2005. Check the license (Texas F1131, 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
1497743165
Name
James A. Maher
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License numbers
F1131 TX
04775R LA
Self-reported in NPPES; status is on the state search
Practice location
19255 Park Row, Houston, TX 77084
Phone
(281) 945-5190
Enumerated
Oct 7, 2005
Record last updated
Feb 9, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(281) 945-5194
Medicare enrollment
Enrolled (PECOS I20051214000138); accepts Medicare assignment
Medical or professional school
Virginia Commonwealth University, School Of Medicine, 1974
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 19255 Park Row

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

  1. Timothy DimalantaOccupational Therapy Assistant1164220034
  2. Grace Johnson, OTD, OTR/LOccupational Therapist1093523193
  3. Monica RamosSpeech-Language Assistant1467254201
  4. Atta Rehman, MDNeurology Physician1528052982
  5. Gissel ZunigaSpeech-Language Assistant1457243693

Verify James A. Maher in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license F1131
    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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4% more Medicare Part D claims than the average gastroenterology physician in 2024

846 Medicare Part D claims for 305 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. James Maher846
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium319 claims
  2. Omeprazole123 claims
  3. Sutab81 claims
  4. Xifaxan34 claims
  5. Ursodiol26 claims
  6. Sod Sulf-Potass Sulf-Mag Sulf23 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: $993.57

27 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Maher$993.57
  2. Specialty average$5,015.95

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

James A. Maher among 1,478 gastroenterology physician records in Texas

James A. Maher, MD is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated1974 · median 2003 among the 1,175 with a school on file
  • Record last updated2015 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Texas

There are 1,478 gastroenterology physician records in Texas.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Faiz Javed, DOHouston, TX 770821396162228
  2. Madhukar Kaw, M.D.Houston, TX 770821164634747
  3. Shashideep Singhal, M.D.Houston, TX 770821891943098
  4. Tojo Thomas, MDHouston, TX 770821497937379
  5. Julien Fahed, M.D.Houston, TX 770791306287370
  6. Farah Harmouch, MDHouston, TX 770891740849520
  7. Nikhil Inamdar, M.D.Houston, TX 770891093723132
  8. Vikram Jayanty, M.D.Houston, TX 770791336166982

Common questions

What is James A. Maher, MD's NPI number?

James A. Maher, MD's National Provider Identifier (NPI) is 1497743165, issued on Oct 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is James A. Maher, MD located?

The NPPES record lists a practice address at 19255 Park Row, Houston, TX, 77084. Phone: (281) 945-5190. Providers update this record themselves, so call before visiting.

How can I verify James A. Maher, MD's license?

NPPES lists Texas license number F1131, 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 James A. Maher, MD prescribe under Medicare Part D?

In 2024, James A. Maher, MD had 846 Medicare Part D claims for 305 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is James A. Maher, MD'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.