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

Internal Medicine

Sandra F. Koehn, DO

Works at hospitals in Rochester, NY · New York

Summary

Dr. Sandra F. Koehn, DO is an internal medicine doctor at 2300 Buffalo Rd, Bldg 800, Rochester, NY 14624. May accept Medicare assignment. In 2024, Sandra F. Koehn had 64 Original Medicare patients and 142 services. NPI 1184003568. 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 Sandra F. Koehn, 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 Sandra F. Koehn accept Medicare assignment?
Medicare's clinician data says Sandra F. Koehn may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Sandra F. Koehn see?
In 2024, CMS data shows 64 Original Medicare patients and 142 services for Sandra F. Koehn. This counts Original Medicare only and measures volume, not quality.
What is Sandra F. Koehn's NPI number?
1184003568. 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 Sandra F. Koehn, 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 patients64
Services billed to Medicare142
Different services or procedures9
Participating Medicare providerYes
Average age of these patients68

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)110 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 cholesterol72%
  • Anxiety33%
  • Diabetes31%
  • Arthritis27%
  • Ischemic heart disease20%

Hospitals where Sandra F. Koehn works

Medicare's Facility Affiliation Data lists Sandra F. Koehn 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 Sandra F. Koehn is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Rochester

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

All internal medicine doctors in Rochester →

Clinician information

CredentialDO
Graduation year2015 (11 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1184003568
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