Michael Nemunaitis, MD
NPI 1639117781 · Medical Oncology Physician · Cleveland, OH
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Nemunaitis, MD is a Medical Oncology Physician provider in Cleveland, OH (NPI 1639117781).
Provider details
- NPI number
- 1639117781
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- M2419 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
819 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 356 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 140 | $91 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 86 | $74 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 46 | $127 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 42 | $112 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 122 | 39 |
| Abiraterone Acetate | 97 | 12 |
| Anastrozole | 95 | 32 |
| Hydroxyurea | 70 | 17 |
| Prochlorperazine Maleate | 66 | 33 |
| Letrozole | 57 | 18 |
| Ondansetron Hcl | 56 | 39 |
| Tamoxifen Citrate | 41 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$432 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2009-08-20
Frequently asked questions
- What is Michael Nemunaitis's NPI number?
- Michael Nemunaitis's National Provider Identifier (NPI) is 1639117781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Nemunaitis's specialty?
- Michael Nemunaitis is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Nemunaitis located?
- Michael Nemunaitis's practice location on file with NPPES is 9500 Euclid Ave, Cleveland, OH 44195-0001.
- What is Michael Nemunaitis's phone number?
- The practice phone number listed in the NPPES registry for Michael Nemunaitis is (800) 223-2273.
- Does Michael Nemunaitis accept Medicare?
- Michael Nemunaitis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Nemunaitis's NPI active?
- Yes — Michael Nemunaitis's NPI (1639117781) is active in the NPPES registry as of the last update on 2009-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.