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Gastroenterology

Nicholas Lim Chow Tom, MD

Works at hospitals in Rochester, NY · New York

Summary

Dr. Nicholas Lim Chow Tom, MD is a gastroenterologist at 601 Elmwood Ave, Rochester, NY 14642. Phone: (585) 275-4711. Accepts Medicare assignment. In 2024, Nicholas Lim Chow Tom had 155 Original Medicare patients and 284 services. NPI 1710159363. 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: 601 Elmwood Ave, Rochester, NY 14642 · Directions
  • Phone: (585) 275‑4711
  • Medicare: Accepts Medicare assignment
  • Hospital: Strong Memorial Hospital
  • Group practice: Gastrointestinal Group
  • Medical school: graduated 2004 (22 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 Nicholas Lim Chow Tom, 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 Nicholas Lim Chow Tom accept Medicare assignment?
Yes. Medicare's clinician data says Nicholas Lim Chow Tom 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 Nicholas Lim Chow Tom see?
In 2024, CMS data shows 155 Original Medicare patients and 284 services for Nicholas Lim Chow Tom. This counts Original Medicare only and measures volume, not quality.
What is Nicholas Lim Chow Tom's NPI number?
1710159363. 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 Nicholas Lim Chow Tom, 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 patients155
Services billed to Medicare284
Different services or procedures27
Participating Medicare providerYes
Average age of these patients64

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)47 services
  2. 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)30 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)26 services
  4. Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)23 services
  5. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)21 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 pressure74%
  • High cholesterol60%
  • Chronic kidney disease50%
  • Diabetes44%
  • Anxiety39%
  • Ischemic heart disease37%

Hospitals where Nicholas Lim Chow Tom works

Medicare's Facility Affiliation Data lists Nicholas Lim Chow Tom 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 Nicholas Lim Chow Tom is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nicholas Lim Chow Tom as a member of this group (CMS data updated October 2, 2026).

  • Gastrointestinal Group51 clinicians in the group

Specialties

Find other Gastroenterology doctors in New York →

Other gastroenterologists in Rochester

Clinicians with the same Medicare primary specialty in Rochester, NY — not a recommendation.

All gastroenterologists in Rochester →

Other clinicians in Gastrointestinal Group

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)1710159363
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