Housein M. Wazaz, M.D.
NPI 1629077714ActiveIndividual· Internal Medicine, Gastroenterology· Meriden, CT
Internal Medicine, Gastroenterology (M.D.) with Midstate Gastroenterology Specialists PC, practicing in Meriden, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $2,276,838 for 9,164 claims, against $289,991 paid for services in 2024. Phathom Pharmaceuticals, Inc. was the largest of 16 companies reporting payments in 2025, $20,503 in all, mostly speaking and faculty fees. Lists Hartford Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1629077714 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 20, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 038168 | CT |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 671 |
|---|---|
| Services billed | 5,025 across 57 procedure codes |
| Paid by Medicare | $289,991 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,164 · 16,090 30-day fills |
|---|---|
| Patients | 1,440 |
| Total drug cost | $2,276,838 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Midstate Gastroenterology Specialists PCHamden, CT · 8 clinicians
Hospital affiliations
- Hartford HospitalHartford, CT
- Middlesex HospitalMiddletown, CT
- Midstate Medical CenterMeriden, CT
- The Hospital of Central ConnecticutNew Britain, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$20,503 · 172 payments from 16 companies
- 2024$40,604 · 196 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $7,775 | 32 |
| Lilly USA, LLC | $6,712 | 28 |
| Aimmune Therapeutics, Inc. | $4,050 | 3 |
| Abbvie Inc. | $553.83 | 38 |
| Gilead Sciences, Inc. | $361.74 | 23 |
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$11,360 · 7 payments
- Travel and Lodging$6,095 · 8 payments
- Food and Beverage$2,987 · 155 payments
- Education$61.43 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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