NPPES file of Aug 9, 2026

Umair Mahmood Siddiqui, MD

Gastroenterology Physician · Lake Jackson, TX

Umair Mahmood Siddiqui, MD is a gastroenterology physician with a practice address in Lake Jackson, Texas, and NPI 1316113558, issued on May 7, 2008. Check the license (Texas P6523, 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
1316113558
Name
Umair Mahmood Siddiqui
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
P6523 TX
Self-reported in NPPES; status is on the state search
Practice location
109 Parking Way St, Lake Jackson, TX 77566
Phone
(979) 292-0033
Enumerated
May 7, 2008
Record last updated
Jun 20, 2024
Medicare enrollment
Enrolled (PECOS I20140113000976); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 109 Parking Way St

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

  1. Melinda Friudenberg, FNPFamily Nurse Practitioner1336652130
  2. Andrew Gunter, CRNACertified Registered Nurse Anesthetist1740624253
  3. Yu Eun HwangNurse Practitioner1285046490
  4. Nizam Meah, MDGastroenterology Physician1720174857

Verify Umair Mahmood Siddiqui in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P6523
    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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2.9 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,362 Medicare Part D claims for 818 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Umair Siddiqui2,362
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium572 claims
  2. Sod Sulf-Potass Sulf-Mag Sulf293 claims
  3. Omeprazole277 claims
  4. Famotidine230 claims
  5. Sucralfate64 claims
  6. Dicyclomine Hcl59 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): 68.6 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. Qualityout of 100 · 30% of the final score65.2
  2. Costout of 100 · 30%30.1
  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: $2,024.80

103 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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. Umair Siddiqui$2,024.80
  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.

Bills Medicare through 2 group practices

  1. Digestive And Liver Center, PALake Jackson, TX
  2. Stephen F Austin Community Health Center, Inc.Alvin, TX

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

Umair Mahmood Siddiqui among 1,478 gastroenterology physician records in Texas

Umair Mahmood Siddiqui, 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 2008, is newer than 59% of them.

  • NPI issued2008 · 59% of these records are older, 36% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2004 · median 2003 among the 1,175 with a school on file
  • Record last updated2024 · 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. Nizam Meah, MDLake Jackson, TX 775661720174857
  2. William Sweatt, M.D.Lake Jackson, TX 775661255330445
  3. Akshata MogheLeague City, TX 775731093133688
  4. Louma Rustam, MDLeague City, TX 775731164918140
  5. Richard Warneke, M.D.League City, TX 775731053367722
  6. Julia ZhangLeague City, TX 775731962908145
  7. Daniela Abrams, MDGalveston, TX 775551801357793
  8. Robinder Abrol, DOGalveston, TX 775551073176715

Common questions

What is Umair Mahmood Siddiqui, MD's NPI number?

Umair Mahmood Siddiqui, MD's National Provider Identifier (NPI) is 1316113558, issued on May 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Umair Mahmood Siddiqui, MD located?

The NPPES record lists a practice address at 109 Parking Way St, Lake Jackson, TX, 77566. Phone: (979) 292-0033. Providers update this record themselves, so call before visiting.

How can I verify Umair Mahmood Siddiqui, MD's license?

NPPES lists Texas license number P6523, 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 Umair Mahmood Siddiqui, MD prescribe under Medicare Part D?

In 2024, Umair Mahmood Siddiqui, MD had 2,362 Medicare Part D claims for 818 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Umair Mahmood Siddiqui, MD's MIPS final score?

The 2023 MIPS final score is 68.6 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.