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Physician Assistant

Magdalen M. Flynn, PA

Works at hospitals in Milford, MA · Massachusetts

Summary

Magdalen M. Flynn, PA is a physician assistant at 1 Lumber St, Hopkinton, MA 01748. Phone: (508) 435-5936. Accepts Medicare assignment. In 2024, Magdalen M. Flynn had 303 Original Medicare patients and 593 services. NPI 1245992023. 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: Physician assistant
  • Address: 1 Lumber St, Hopkinton, MA 01748 · Directions (6 more locations)
  • Phone: (508) 435‑5936
  • Medicare: Accepts Medicare assignment
  • Hospital: Milford Regional Medical Center
  • Group practice: UMass Memorial Medical Group Inc (+1 more)
  • School: graduated 2021
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Magdalen M. Flynn, 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 Magdalen M. Flynn accept Medicare assignment?
Yes. Medicare's clinician data says Magdalen M. Flynn 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 Magdalen M. Flynn see?
In 2024, CMS data shows 303 Original Medicare patients and 593 services for Magdalen M. Flynn. This counts Original Medicare only and measures volume, not quality.
What is Magdalen M. Flynn's NPI number?
1245992023. 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 Magdalen M. Flynn, 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 patients303
Services billed to Medicare593
Different services or procedures52
Participating Medicare providerYes
Average age of these patients72

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)157 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)86 services
  3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)53 services
  4. X-ray of chest, 2 views (71046)44 services
  5. Urinalysis, manual test (81002)35 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 cholesterol75%
  • High blood pressure67%
  • Arthritis49%
  • Anxiety34%
  • Depression25%
  • Diabetes24%

Hospitals where Magdalen M. Flynn works

Medicare's Facility Affiliation Data lists Magdalen M. Flynn 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 Magdalen M. Flynn is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Magdalen M. Flynn as a member of these groups (CMS data updated October 2, 2026).

  • UMass Memorial Medical Group Inc2,516 clinicians in the group
  • Milford Regional Physician Group, Inc.210 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Massachusetts →

Other physician assistants in Hopkinton

Clinicians with the same Medicare primary specialty in Hopkinton, MA — not a recommendation.

All physician assistants in Hopkinton →

Other clinicians in UMass Memorial Medical Group Inc

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

Clinician information

CredentialPA
Graduation year2021
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245992023
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