Douglas Allen Tremblay, M.D.
NPI 1972921807ActiveIndividual· Internal Medicine, Hematology· New York, NY
Internal Medicine, Hematology (M.D.) in New York, New York, trained at Albert Einstein College of Medicine of Yeshiva University (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $861,618 for 277 claims, against $28,755 paid for services in 2024. Ipsen Innovation was the largest of 14 companies reporting payments in 2025, $14,611 in all, mostly consulting fees.
Overview
| NPI | 1972921807 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 28, 2014 |
| Last updated in NPPES | Jun 3, 2021 |
| Certified by provider | Jun 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology Primary | 207RH0000X | 282022 | NY |
| Hospitalist | 208M00000X | 282022 | NY |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | NY |
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 - Hematology/Oncology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 79 |
|---|---|
| Services billed | 293 across 7 procedure codes |
| Paid by Medicare | $28,755 |
Part D prescriptions in 2024
| Prescriptions (claims) | 277 · 346 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $861,618 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | Albert Einstein College of Medicine of Yeshiva University |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Icahn School of Medicine at Mount SinaiNew York, NY · 2,843 clinicians
Hospital affiliations
- Mount Sinai Beth IsraelNew York, NY
- Mount Sinai HospitalNew York, NY
Other facilities
- Vns of Ny Home Care ChhaHome health agency · New York, NY
Industry payments (Open Payments)
- 2025$14,611 · 29 payments from 14 companies
- 2024$6,237 · 27 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ipsen Innovation | $10,010 | 4 |
| Geron Corporation | $3,200 | 1 |
| Daiichi Sankyo Inc. | $289.86 | 3 |
| Sobi, Inc | $221.71 | 2 |
| Blueprint Medicines Corporation | $198.87 | 3 |
What the 2025 payments were for
- Consulting Fee$13,210 · 5 payments
- Food and Beverage$1,401 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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