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Gastroenterology

Henry M. Klotz, MD

Works at hospitals in Oneida, NY · New York

Summary

Dr. Henry M. Klotz, MD is a gastroenterologist at 125 Fields Dr, Oneida, NY 13421. Phone: (315) 361-2205. Accepts Medicare assignment. In 2024, Henry M. Klotz had 204 Original Medicare patients and 356 services. NPI 1134283104. 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: 125 Fields Dr, Oneida, NY 13421 · Directions (4 more locations)
  • Phone: (315) 361‑2205
  • Medicare: Accepts Medicare assignment
  • Hospital: Oneida Health Hospital
  • Group practice: Oneida Medical Practice PC
  • Medical school: Icahn School Of Medicine At Mount Sinai · graduated 1980 (46 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 Henry M. Klotz, 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 Henry M. Klotz accept Medicare assignment?
Yes. Medicare's clinician data says Henry M. Klotz 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 Henry M. Klotz see?
In 2024, CMS data shows 204 Original Medicare patients and 356 services for Henry M. Klotz. This counts Original Medicare only and measures volume, not quality.
What is Henry M. Klotz's NPI number?
1134283104. 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 Henry M. Klotz, 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 patients204
Services billed to Medicare356
Different services or procedures24
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)86 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)79 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)31 services
  4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)24 services
  5. Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery (45384)24 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%
  • Arthritis47%
  • Anxiety38%
  • Depression30%
  • Diabetes28%

Hospitals where Henry M. Klotz works

Medicare's Facility Affiliation Data lists Henry M. Klotz 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.

  • Oneida Health HospitalOneida, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330115

Practice locations

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

Group practices

Medicare enrollment lists Henry M. Klotz as a member of this group (CMS data updated October 2, 2026).

  • Oneida Medical Practice PC50 clinicians in the group

Specialties

Find other Gastroenterology doctors in New York →

Other gastroenterologists in New York

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

All gastroenterologists in New York →

Other clinicians in Oneida Medical Practice PC

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

Clinician information

CredentialMD
Medical schoolIcahn School Of Medicine At Mount Sinai
Graduation year1980 (46 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1134283104
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