Mohammad Arsalan Siddiqui, M.D
NPI 1275916983ActiveIndividual· Internal Medicine, Gastroenterology· Huntsville, AL
Internal Medicine, Gastroenterology (M.D) with Hh Digestive Disease Center, practicing in Huntsville, Alabama. Their prescriptions cost Medicare Part D more than their services did: $323,369 for 1,035 claims, against $89,459 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $2,212 in all, mostly food and beverage. Lists Huntsville Hospital as a hospital affiliation.
Overview
| NPI | 1275916983 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Jun 30, 2015 |
| Last updated in NPPES | Jan 3, 2024 |
| Certified by provider | Jan 3, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 42137 | AL |
| Internal Medicine | 207R00000X | 4301108261 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 559 |
|---|---|
| Services billed | 1,163 across 32 procedure codes |
| Paid by Medicare | $89,459 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,035 · 1,837 30-day fills |
|---|---|
| Patients | 301 |
| Total drug cost | $323,369 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Hh Digestive Disease CenterHuntsville, AL · 20 clinicians
Hospital affiliation
- Huntsville HospitalHuntsville, AL
Industry payments (Open Payments)
- 2025$2,212 · 128 payments from 18 companies
- 2024$2,067 · 115 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $949.75 | 49 |
| Pfizer Inc. | $300.98 | 23 |
| Aimmune Therapeutics, Inc. | $150.12 | 11 |
| Ardelyx, Inc. | $138.52 | 7 |
| Madrigal Pharmaceuticals | $132.62 | 5 |
What the 2025 payments were for
- Food and Beverage$2,212 · 128 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 32 gastroenterologists in Huntsville · All gastroenterologists in Alabama