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Obstetrics/Gynecology

Maren E. Flynn, MD

Works at hospitals in Winona, MN · Minnesota

Summary

Dr. Maren E. Flynn, MD is an OB-GYN at 440 Elm St E, Annandale, MN 55302. Phone: (320) 682-5225. Accepts Medicare assignment. NPI 1134362809. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 440 Elm St E, Annandale, MN 55302 · Directions (1 more location)
  • Phone: (320) 682‑5225
  • Medicare: Accepts Medicare assignment
  • Hospital: Winona Health Services
  • Group practice: Allina Health System (+1 more)
  • Medical school: Geisel School Of Medicine At Dartmouth · graduated 2009 (17 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Maren E. 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 Maren E. Flynn accept Medicare assignment?
Yes. Medicare's clinician data says Maren E. 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.
What is Maren E. Flynn's NPI number?
1134362809. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Maren E. Flynn works

Medicare's Facility Affiliation Data lists Maren E. 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.

  • Winona Health ServicesWinona, MN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 240044

Practice locations

Addresses where Maren E. Flynn is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Allina Health System3,842 clinicians in the group
  • Winona Health Services169 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Minnesota →

Other OB-GYNs in Annandale

Clinicians with the same Medicare primary specialty in Annandale, MN — not a recommendation.

All OB-GYNs in Annandale →

Other clinicians in Allina Health System

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

Clinician information

CredentialMD
Medical schoolGeisel School Of Medicine At Dartmouth
Graduation year2009 (17 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134362809
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians