Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Gastroenterology

Umair M. Siddiqui, MD

Works at hospitals in Lake Jackson, TX · Pearland, TX · Bay City, TX … · Texas

Summary

Dr. Umair M. Siddiqui, MD is a gastroenterologist at 109 Parking Way St, Lake Jackson, TX 77566. Phone: (979) 292-0033. Accepts Medicare assignment. In 2024, Umair M. Siddiqui had 352 Original Medicare patients and 1,957 services. NPI 1316113558. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Umair M. Siddiqui, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Umair M. Siddiqui accept Medicare assignment?
Yes. Medicare's clinician data says Umair M. Siddiqui accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Umair M. Siddiqui see?
In 2024, CMS data shows 352 Original Medicare patients and 1,957 services for Umair M. Siddiqui. This counts Original Medicare only and measures volume, not quality.
What is Umair M. Siddiqui's NPI number?
1316113558. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Umair M. Siddiqui, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients352
Services billed to Medicare1,957
Different services or procedures38
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)381 services
  2. Pathology examination of tissue using a microscope, intermediate complexity (88305)356 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)144 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)133 services
  5. Special stained specimen slides to examine tissue including interpretation and report (88313)124 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis50%
  • Ischemic heart disease37%
  • Diabetes36%
  • Anxiety30%

Hospitals where Umair M. Siddiqui works

Medicare's Facility Affiliation Data lists Umair M. Siddiqui at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Umair M. Siddiqui is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Umair M. Siddiqui as a member of these groups (CMS data updated October 2, 2026).

  • Stephen F Austin Community Health Center, Inc.97 clinicians in the group
  • Digestive and Liver Center, PA2 clinicians in the group

Specialties

Find other Gastroenterology doctors in Texas →

Other gastroenterologists in Texas

Clinicians with the same Medicare primary specialty in Texas — not a recommendation.

All gastroenterologists in Texas →

Other clinicians in Stephen F Austin Community Health Center, Inc.

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1316113558
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians