Ahmad Daniyal Siddiqui, MD
NPI 1700873783ActiveIndividual· Internal Medicine, Hematology & Oncology· Northampton, MA
Internal Medicine, Hematology & Oncology (MD) with Massachusetts General Physicians Organization Inc and 2 other groups, practicing in Northampton, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $2,803,118 for 991 claims, against $142,122 paid for services in 2024. Sobi, Inc was the largest of 2 companies reporting payments in 2025, $142.41 in all, mostly food and beverage. Lists Brigham and Women's Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1700873783 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 4, 2005 |
| Last updated in NPPES | Oct 29, 2024 |
| Certified by provider | Oct 29, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 226914 | MA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 33604 | NH |
| Internal Medicine, Hematology | 207RH0000X | 226914 | MA |
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 (MA); Practitioner - Hematology/Oncology (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 419 |
|---|---|
| Services billed | 1,777 across 19 procedure codes |
| Paid by Medicare | $142,122 |
Part D prescriptions in 2024
| Prescriptions (claims) | 991 · 1,162 30-day fills |
|---|---|
| Patients | 221 |
| Total drug cost | $2,803,118 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
- Wentworth Douglass Physician CorporationDover, NH · 429 clinicians
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA · 291 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Cooley Dickinson Hospital Inc,theNorthampton, MA
- Heywood Hospital -Gardner, MA
- Huggins HospitalWolfeboro, NH
- Wentworth-Douglass HospitalDover, NH
Industry payments (Open Payments)
- 2025$142.41 · 2 payments from 2 companies
- 2024$45.14 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sobi, Inc | $124.74 | 1 |
| Pfizer Inc. | $17.67 | 1 |
What the 2025 payments were for
- Food and Beverage$142.41 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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