Eric Chongze Ma, M.D.
NPI 1205078862ActiveIndividual· Internal Medicine, Hematology & Oncology· Danbury, CT
Internal Medicine, Hematology & Oncology (M.D.) with Nuvance Health Medical Practice CT Inc, practicing in Danbury, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $5,103,423 for 1,408 claims, against $127,497 paid for services in 2024. Deciphera Pharmaceuticals Inc. was the largest of 32 companies reporting payments in 2025, $4,425 in all, mostly food and beverage. Lists Danbury Hospital as a hospital affiliation.
Overview
| NPI | 1205078862 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 29, 2009 |
| Last updated in NPPES | Aug 17, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 61788 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 392 |
|---|---|
| Services billed | 1,922 across 19 procedure codes |
| Paid by Medicare | $127,497 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,408 · 2,219 30-day fills |
|---|---|
| Patients | 253 |
| Total drug cost | $5,103,423 |
| Generic share | 67% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Nuvance Health Medical Practice CT IncDanbury, CT · 747 clinicians
Hospital affiliation
- Danbury HospitalDanbury, CT
Other facilities
- Regional HospiceHospice · Danbury, CT
Industry payments (Open Payments)
- 2025$4,425 · 84 payments from 32 companies
- 2024$2,783 · 121 payments from 36 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Deciphera Pharmaceuticals Inc. | $2,637 | 6 |
| Astrazeneca Pharmaceuticals LP | $216.00 | 8 |
| Abbvie Inc. | $174.00 | 7 |
| Array Biopharma Inc | $148.31 | 7 |
| Novartis Pharmaceuticals Corporation | $97.67 | 4 |
What the 2025 payments were for
- Food and Beverage$1,913 · 81 payments
- Honoraria$1,650 · 1 payment
- Travel and Lodging$862.48 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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