Roberto Mauro Gamarra, M.D.
NPI 1013039734ActiveIndividual· Internal Medicine, Gastroenterology· Farmington Hills, MI
Internal Medicine, Gastroenterology (M.D.) with Digestive Health Consultants PLC, practicing in Farmington Hills, Michigan. Their prescriptions cost Medicare Part D more than their services did: $778,712 for 1,981 claims, against $261,467 paid for services in 2024. Boston Scientific Corporation was the largest of 6 companies reporting payments in 2025, $253.71 in all, mostly food and beverage. Lists Ascension Providence Hospital, Southfield and Novi and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1013039734 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 4, 2007 |
| Last updated in NPPES | Aug 9, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 4301080488 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 516 |
|---|---|
| Services billed | 9,569 across 64 procedure codes |
| Paid by Medicare | $261,467 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,981 · 4,179 30-day fills |
|---|---|
| Patients | 701 |
| Total drug cost | $778,712 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Digestive Health Consultants PLCFarmington Hills, MI · 10 clinicians
Hospital affiliations
- Ascension Providence Hospital, Southfield and NoviSouthfield, MI
- Beaumont Hospital - Farmington HillsFarmington Hills, MI
- Beaumont Hospital Royal OakRoyal Oak, MI
- Henry Ford Health HospitalDetroit, MI
- Henry Ford Health West Bloomfield HospitalW Bloomfield, MI
Industry payments (Open Payments)
- 2025$253.71 · 6 payments from 6 companies
- 2024$316.11 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $99.28 | 1 |
| Janssen Scientific Affairs, LLC | $76.69 | 1 |
| Pfizer Inc. | $24.88 | 1 |
| Biocon Biologics Inc | $19.54 | 1 |
| Genzyme Corporation | $18.08 | 1 |
What the 2025 payments were for
- Food and Beverage$253.71 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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