Greg Manson, MD
NPI 1689882961 · Hematology & Oncology Physician · Massillon, OH
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greg Manson, MD is a Hematology & Oncology Physician provider in Massillon, OH (NPI 1689882961).
Provider details
- NPI number
- 1689882961
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35092423 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
597 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 | 252 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 112 | $84 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 111 | $169 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 60 | $8 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 22 | $209 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 109 | 25 |
| Anastrozole | 102 | 27 |
| Prednisone | 86 | 23 |
| Hydroxyurea | 82 | 18 |
| Ondansetron Hcl | 80 | 48 |
| Prochlorperazine Maleate | 78 | 56 |
| Abiraterone Acetate | 64 | — |
| Acalabrutinib Maleatebrand: Calquence | 61 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$129 across 6 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
- 2007-05-18
- Last updated
- 2013-11-22
Frequently asked questions
- What is Greg Manson's NPI number?
- Greg Manson's National Provider Identifier (NPI) is 1689882961, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Greg Manson's specialty?
- Greg Manson is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Greg Manson located?
- Greg Manson's practice location on file with NPPES is 7337 Caritas Cir Nw, Massillon, OH 44646-9118.
- What is Greg Manson's phone number?
- The practice phone number listed in the NPPES registry for Greg Manson is (330) 478-0001.
- Does Greg Manson accept Medicare?
- Greg Manson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Greg Manson's NPI active?
- Yes — Greg Manson's NPI (1689882961) is active in the NPPES registry as of the last update on 2013-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.