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Gastroenterology

Harish Gagneja, MD

Works at hospitals in Austin, TX · Texas

Summary

Dr. Harish Gagneja, MD is a gastroenterologist at 1201 W 38th St, Austin, TX 78705. Phone: (512) 324-1000. Accepts Medicare assignment. In 2024, Harish Gagneja had 580 Original Medicare patients and 1,159 services. NPI 1235114786. 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.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 1201 W 38th St, Austin, TX 78705 · Directions (6 more locations)
  • Phone: (512) 324‑1000
  • Medicare: Accepts Medicare assignment
  • Hospital: St David's Medical Center
  • Group practice: Austin Gastroenterology PLLC
  • Medical school: graduated 1990 (36 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Harish Gagneja, 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 Harish Gagneja accept Medicare assignment?
Yes. Medicare's clinician data says Harish Gagneja 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 Harish Gagneja see?
In 2024, CMS data shows 580 Original Medicare patients and 1,159 services for Harish Gagneja. This counts Original Medicare only and measures volume, not quality.
What is Harish Gagneja's NPI number?
1235114786. 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 Harish Gagneja, 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 patients580
Services billed to Medicare1,159
Different services or procedures42
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)192 services
  2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)181 services
  3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)180 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)173 services
  5. Biopsy of large bowel using a flexible endoscope (45380)119 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 cholesterol75%
  • High blood pressure72%
  • Arthritis45%
  • Ischemic heart disease37%
  • Diabetes31%
  • Chronic kidney disease22%

Hospitals where Harish Gagneja works

Medicare's Facility Affiliation Data lists Harish Gagneja 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 Harish Gagneja is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Harish Gagneja as a member of this group (CMS data updated October 2, 2026).

  • Austin Gastroenterology PLLC76 clinicians in the group

Specialties

Find other Gastroenterology doctors in Texas →

Other gastroenterologists in Austin

Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.

All gastroenterologists in Austin →

Other clinicians in Austin Gastroenterology PLLC

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

Clinician information

CredentialMD
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1235114786
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