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Diagnostic Radiology

Kathleen M. Finzel, MD

Works at hospitals in Port Jefferson, NY · Stony Brook, NY · New York

Summary

Dr. Kathleen M. Finzel, MD is a radiologist at 100 Nicolls Rd, Stony Brook, NY 11794. Phone: (631) 638-2121. Accepts Medicare assignment. In 2024, Kathleen M. Finzel had 2,136 Original Medicare patients and 7,276 services. NPI 1013944032. 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 Kathleen M. Finzel, 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 Kathleen M. Finzel accept Medicare assignment?
Yes. Medicare's clinician data says Kathleen M. Finzel 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 Kathleen M. Finzel see?
In 2024, CMS data shows 2,136 Original Medicare patients and 7,276 services for Kathleen M. Finzel. This counts Original Medicare only and measures volume, not quality.
What is Kathleen M. Finzel's NPI number?
1013944032. 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 Kathleen M. Finzel, 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 patients2,136
Services billed to Medicare7,276
Different services or procedures88
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Injection, gadobutrol, 0.1 ml (A9585)3,975 services
  2. X-ray of chest, 1 view (71045)402 services
  3. Mri scan of leg joint without contrast (73721)212 services
  4. X-ray of hip, 2-3 views (73502)172 services
  5. X-ray of shoulder, minimum of 2 views (73030)140 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%
  • Arthritis71%
  • Ischemic heart disease48%
  • Diabetes37%
  • Anxiety37%

Hospitals where Kathleen M. Finzel works

Medicare's Facility Affiliation Data lists Kathleen M. Finzel 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 Kathleen M. Finzel is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Stony Brook Radiology, University Faculty Practice Corporation59 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in New York →

Other radiologists in Stony Brook

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

All radiologists in Stony Brook →

Other clinicians in Stony Brook Radiology, University Faculty Practice Corporation

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

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year1987 (39 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1013944032
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