Alyssa Maria Parian, MD
NPI 1154580033ActiveIndividual· Internal Medicine, Gastroenterology· Baltimore, MD
Internal Medicine, Gastroenterology (MD) with Hackensack Meridian Health Medical Group - Specialty Care PC, practicing in Baltimore, Maryland. Their prescriptions cost Medicare Part D more than their services did: $650,097 for 102 claims, against $51,263 paid for services in 2024. Pfizer Inc. was the largest of 18 companies reporting payments in 2025, $17,419 in all, mostly speaking and faculty fees. Lists Hackensack University Medical Center as a hospital affiliation.
Overview
| NPI | 1154580033 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 5, 2008 |
| Last updated in NPPES | Oct 11, 2024 |
| Certified by provider | Oct 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 25MA12417600 | NJ |
| Internal Medicine, Gastroenterology | 207RG0100X | D73723 | MD |
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 (MD); Practitioner - Gastroenterology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 242 |
|---|---|
| Services billed | 1,664 across 35 procedure codes |
| Paid by Medicare | $51,263 |
Part D prescriptions in 2024
| Prescriptions (claims) | 102 · 178 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $650,097 |
| Generic share | 64% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Hackensack Meridian Health Medical Group - Specialty Care PCHackensack, NJ · 1,922 clinicians
Hospital affiliation
- Hackensack University Medical CenterHackensack, NJ
Industry payments (Open Payments)
- 2025$17,419 · 183 payments from 18 companies
- 2024$21,639 · 108 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $8,535 | 24 |
| Celltrion USA Inc. | $4,152 | 21 |
| Abbvie Inc. | $1,956 | 43 |
| Janssen Biotech, Inc. | $1,501 | 39 |
| Janssen Scientific Affairs, LLC | $465.59 | 8 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$8,688 · 2 payments
- Food and Beverage$4,060 · 175 payments
- Consulting Fee$3,996 · 3 payments
- Travel and Lodging$598.21 · 2 payments
- Education$76.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Baltimore
- 1023197902
- 1023513397
- 1033472071
- 1043206873
- 1053305763
- 1053521450
- 1063625028
- 1083664312
- 1093801763
- 1104094739
- 1114009263
- 1114912631
All 166 gastroenterologists in Baltimore · All gastroenterologists in Maryland