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Gastroenterology

Nikhil P. Martis, MD

Works at hospitals in Indianapolis, IN · Indiana

Summary

Dr. Nikhil P. Martis, MD is a gastroenterologist at 11911 N Meridian St, Suite 128, Carmel, IN 46032. Phone: (317) 621-6900. Accepts Medicare assignment. In 2024, Nikhil P. Martis had 194 Original Medicare patients and 446 services. NPI 1144519760. 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: 11911 N Meridian St, Suite 128, Carmel, IN 46032 · Directions (1 more location)
  • Phone: (317) 621‑6900
  • Medicare: Accepts Medicare assignment
  • Hospitals: Community Hospital East, Community Hospital North
  • Group practice: Community Physicians of Indiana Inc
  • Medical school: University Of Illinois College Of Med (chi/peor/rock/chm-Urb) · graduated 2011 (15 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Nikhil P. Martis, 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 Nikhil P. Martis accept Medicare assignment?
Yes. Medicare's clinician data says Nikhil P. Martis 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 Nikhil P. Martis see?
In 2024, CMS data shows 194 Original Medicare patients and 446 services for Nikhil P. Martis. This counts Original Medicare only and measures volume, not quality.
What is Nikhil P. Martis's NPI number?
1144519760. 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 Nikhil P. Martis, 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 patients194
Services billed to Medicare446
Different services or procedures34
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)87 services
  2. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)61 services
  3. Biopsy of large bowel using a flexible endoscope (45380)59 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)52 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)39 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 cholesterol71%
  • Arthritis39%
  • Chronic kidney disease37%
  • Diabetes32%
  • Ischemic heart disease32%

Hospitals where Nikhil P. Martis works

Medicare's Facility Affiliation Data lists Nikhil P. Martis 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 Nikhil P. Martis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nikhil P. Martis as a member of this group (CMS data updated October 2, 2026).

  • Community Physicians of Indiana Inc1,565 clinicians in the group

Specialties

Find other Gastroenterology doctors in Indiana →

Other gastroenterologists in Carmel

Clinicians with the same Medicare primary specialty in Carmel, IN — not a recommendation.

All gastroenterologists in Carmel →

Other clinicians in Community Physicians of Indiana Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144519760
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