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General Surgery

Maryann Meo, DO

Works at hospitals in Decatur, IN · Fort Wayne, IN · Warsaw, IN · Indiana

Summary

Dr. Maryann Meo, DO is a general surgeon at 1520 Provident Dr, Warsaw, IN 46580. Phone: (260) 434-6447. Accepts Medicare assignment. In 2024, Maryann Meo had 222 Original Medicare patients and 452 services. NPI 1265412266. 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: General surgeon (Medicare lists General Surgery)
  • Address: 1520 Provident Dr, Warsaw, IN 46580 · Directions (4 more locations)
  • Phone: (260) 434‑6447
  • Medicare: Accepts Medicare assignment
  • Hospitals: Adams Memorial Hospital, Dupont Hospital LLC, Kosciusko Community Hospital and 2 more
  • Group practice: Lutheran Medical Group LLC
  • Medical school: New York College Of Osteo Medicine Of New York Institute Of Technology · graduated 1986 (40 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Maryann Meo, 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 Maryann Meo accept Medicare assignment?
Yes. Medicare's clinician data says Maryann Meo 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 Maryann Meo see?
In 2024, CMS data shows 222 Original Medicare patients and 452 services for Maryann Meo. This counts Original Medicare only and measures volume, not quality.
What is Maryann Meo's NPI number?
1265412266. 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 Maryann Meo, 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 patients222
Services billed to Medicare452
Different services or procedures40
Participating Medicare providerYes
Average age of these patients73

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)202 services
  2. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)38 services
  3. Partial removal of breast (19301)32 services
  4. Imaging of lymph nodes during surgery (38900)30 services
  5. Biopsy or removal of deep lymph nodes of underarm (38525)28 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%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High blood pressure72%
  • Arthritis42%
  • Diabetes29%
  • Osteoporosis24%

Hospitals where Maryann Meo works

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

Group practices

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

  • Lutheran Medical Group LLC252 clinicians in the group

Specialties

Find other General Surgery doctors in Indiana →

Other general surgeons in Indiana

Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.

All general surgeons in Indiana →

Other clinicians in Lutheran Medical Group LLC

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

Clinician information

CredentialDO
Medical schoolNew York College Of Osteo Medicine Of New York Institute Of Technology
Graduation year1986 (40 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265412266
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