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Medical Oncology

Michael C. Nemunaitis, MD

Works at hospitals in Akron, OH · Cleveland, OH · Euclid, OH … · Ohio

Summary

Dr. Michael C. Nemunaitis, MD is an oncologist at 6780 Mayfield Rd, Mayfield Heights, OH 44124. Phone: (330) 888-4000. Accepts Medicare assignment. In 2024, Michael C. Nemunaitis had 481 Original Medicare patients and 870 services. NPI 1639117781. 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: Oncologist (Medicare lists Medical Oncology)
  • Address: 6780 Mayfield Rd, Mayfield Heights, OH 44124 · Directions (3 more locations)
  • Phone: (330) 888‑4000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Akron General Medical Center, Cleveland Clinic, Euclid Hospital and 2 more
  • Group practice: Cleveland Clinic
  • Medical school: Medical College Of Ohio · graduated 2001 (25 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Michael C. Nemunaitis, 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 Michael C. Nemunaitis accept Medicare assignment?
Yes. Medicare's clinician data says Michael C. Nemunaitis 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 Michael C. Nemunaitis see?
In 2024, CMS data shows 481 Original Medicare patients and 870 services for Michael C. Nemunaitis. This counts Original Medicare only and measures volume, not quality.
What is Michael C. Nemunaitis's NPI number?
1639117781. 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 Michael C. Nemunaitis, 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 patients481
Services billed to Medicare870
Different services or procedures16
Participating Medicare providerYes
Average age of these patients77

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)496 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. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)59 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)46 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)42 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%
  • Arthritis58%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)45%
  • Chronic kidney disease43%
  • Diabetes30%

Hospitals where Michael C. Nemunaitis works

Medicare's Facility Affiliation Data lists Michael C. Nemunaitis 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.

  • Akron General Medical CenterAkron, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 360027
  • Cleveland ClinicCleveland, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360180
  • Euclid HospitalEuclid, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 360082
  • Hillcrest HospitalMayfield Heights, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 360230
  • South Pointe HospitalWarrensville Heights, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 360144

Practice locations

Addresses where Michael C. Nemunaitis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Michael C. Nemunaitis as a member of this group (CMS data updated October 2, 2026).

  • Cleveland Clinic7,090 clinicians in the group

Specialties

Find other Medical Oncology doctors in Ohio →

Other oncologists in Ohio

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

All oncologists in Ohio →

Other clinicians in Cleveland Clinic

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

Clinician information

CredentialMD
Medical schoolMedical College Of Ohio
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639117781
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