Heidi Shaifqun Ahmed, M.D.
NPI 1801276472ActiveIndividual· Internal Medicine, Gastroenterology· North Chelmsford, MA
Internal Medicine, Gastroenterology (M.D.) in North Chelmsford, Massachusetts, trained at University of Iowa, Rj & L Carver College of Medicine (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $170,905 for 492 claims, against $36,220 paid for services in 2024. Gilead Sciences, Inc. was the largest of 17 companies reporting payments in 2025, $1,341 in all, mostly food and beverage.
Overview
| NPI | 1801276472 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 9, 2015 |
| Last updated in NPPES | Mar 16, 2022 |
| Certified by provider | Mar 16, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 275290 | MA |
| Internal Medicine | 207R00000X | R-10327 | IA |
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 - Gastroenterology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 231 |
|---|---|
| Services billed | 340 across 23 procedure codes |
| Paid by Medicare | $36,220 |
Part D prescriptions in 2024
| Prescriptions (claims) | 492 · 942 30-day fills |
|---|---|
| Patients | 168 |
| Total drug cost | $170,905 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Integrated Gastroenterology Consultants, P.C.Andover, MA · 38 clinicians
Hospital affiliations
- Lowell General HospitalLowell, MA
- Merrimack Health Lawrence HospitalLawrence, MA
Industry payments (Open Payments)
- 2025$1,341 · 54 payments from 17 companies
- 2024$1,241 · 55 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $370.94 | 14 |
| Pfizer Inc. | $189.82 | 9 |
| Abbvie Inc. | $124.97 | 6 |
| Takeda Pharmaceuticals U.S.A., Inc. | $110.37 | 4 |
| Janssen Biotech, Inc. | $92.65 | 4 |
What the 2025 payments were for
- Food and Beverage$1,341 · 54 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in North Chelmsford
- 1407145402
- 1609255223
- 1265883615
All Internal Medicine, Gastroenterology providers in Massachusetts →