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Diagnostic Radiology

Margaret Fynes, MD

Works at hospitals in Danville, PA · Muncy, PA · Wellsboro, PA … · Pennsylvania

Summary

Dr. Margaret Fynes, MD is a radiologist at 1100 Grampian Blvd, Williamsport, PA 17701. Phone: (570) 326-8171. Accepts Medicare assignment. In 2024, Margaret Fynes had 3,308 Original Medicare patients and 6,318 services. NPI 1649247644. 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: Radiologist (Medicare lists Diagnostic Radiology)
  • Address: 1100 Grampian Blvd, Williamsport, PA 17701 · Directions (4 more locations)
  • Phone: (570) 326‑8171
  • Medicare: Accepts Medicare assignment
  • Hospitals: Geisinger Medical Center, UPMC Muncy, UPMC Wellsboro and 2 more
  • Group practice: Susquehanna Imaging Associates, Inc.
  • Medical school: graduated 1992 (34 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Margaret Fynes, 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 Margaret Fynes accept Medicare assignment?
Yes. Medicare's clinician data says Margaret Fynes 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 Margaret Fynes see?
In 2024, CMS data shows 3,308 Original Medicare patients and 6,318 services for Margaret Fynes. This counts Original Medicare only and measures volume, not quality.
What is Margaret Fynes's NPI number?
1649247644. 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 Margaret Fynes, 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 patients3,308
Services billed to Medicare6,318
Different services or procedures165
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. X-ray of chest, 1 view (71045)735 services
  2. Ct scan head or brain without contrast (70450)324 services
  3. Screening 3d breast mammography (77063)291 services
  4. Screening mammography (77067)291 services
  5. X-ray of chest, 2 views (71046)282 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%
  • Arthritis59%
  • Anxiety36%
  • Diabetes32%
  • Depression29%

Hospitals where Margaret Fynes works

Medicare's Facility Affiliation Data lists Margaret Fynes 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.

  • Geisinger Medical CenterDanville, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390006
  • UPMC MuncyMuncy, PA · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 391301
  • UPMC WellsboroWellsboro, PA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 391316
  • UPMC WilliamsportWilliamsport, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390045
  • WellSpan Evangelical Community HospitalLewisburg, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390013

Practice locations

Addresses where Margaret Fynes is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Margaret Fynes as a member of this group (CMS data updated October 2, 2026).

  • Susquehanna Imaging Associates, Inc.8 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Pennsylvania →

Other radiologists in Williamsport

Clinicians with the same Medicare primary specialty in Williamsport, PA — not a recommendation.

All radiologists in Williamsport →

Other clinicians in Susquehanna Imaging Associates, Inc.

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

Clinician information

CredentialMD
Graduation year1992 (34 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1649247644
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