Nitin Aggarwal, M.D.
NPI 1407145402ActiveIndividual· Internal Medicine, Gastroenterology· North Chelmsford, MA
Internal Medicine, Gastroenterology (M.D.) with Integrated Gastroenterology Consultants, P.C. and 1 other group, practicing in North Chelmsford, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $280,444 for 561 claims, against $117,039 paid for services in 2024. Neuraxis, Inc. was the largest of 15 companies reporting payments in 2025, $1,617 in all, mostly food and beverage. Lists Lowell General Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1407145402 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 31, 2011 |
| Last updated in NPPES | Jun 18, 2021 |
| Certified by provider | Jun 18, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 278545 | MA |
| Internal Medicine | 207R00000X | 278545 | 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 - Gastroenterology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 460 |
|---|---|
| Services billed | 1,900 across 49 procedure codes |
| Paid by Medicare | $117,039 |
Part D prescriptions in 2024
| Prescriptions (claims) | 561 · 926 30-day fills |
|---|---|
| Patients | 264 |
| Total drug cost | $280,444 |
| Generic share | 61% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Integrated Gastroenterology Consultants, P.C.Andover, MA · 38 clinicians
- Igc III PLLCLowell, MA · 3 clinicians
Hospital affiliations
- Lowell General HospitalLowell, MA
- Merrimack Health Lawrence HospitalLawrence, MA
Industry payments (Open Payments)
- 2025$1,617 · 53 payments from 15 companies
- 2024$1,083 · 50 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neuraxis, Inc. | $371.29 | 1 |
| Abbvie Inc. | $294.15 | 18 |
| Gilead Sciences, Inc. | $174.74 | 7 |
| Medtronic, Inc. | $172.98 | 2 |
| Pfizer Inc. | $136.61 | 6 |
What the 2025 payments were for
- Food and Beverage$1,617 · 53 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in North Chelmsford
- 1801276472
- 1609255223
- 1265883615
All Internal Medicine, Gastroenterology providers in Massachusetts →