Gregory M. Gallousis, MD
NPI 1548202534ActiveIndividual· Ophthalmology· Stamford, CT
Ophthalmology (MD) in Stamford, Connecticut, trained at State University of New York Downstate Medical Center (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $181,548 for 1,477 claims, against $102,080 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $2,534 in all, mostly food and beverage.
Overview
| NPI | 1548202534 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 12, 2006 |
| Last updated in NPPES | Apr 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 044280 | CT |
| Ophthalmology, Glaucoma Specialist | 207WX0009X | 044280 | 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 - Ophthalmology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 281 |
|---|---|
| Services billed | 1,367 across 40 procedure codes |
| Paid by Medicare | $102,080 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,477 · 2,321 30-day fills |
|---|---|
| Patients | 252 |
| Total drug cost | $181,548 |
| Generic share | 54% of claims |
Education and affiliations
| Medical school | State University of New York Downstate Medical Center |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Ophthalmology |
Medical group
- Refocus Eye Health of Central Connecticut PCManchester, CT · 36 clinicians
Hospital affiliation
- Stamford HospitalStamford, CT
Industry payments (Open Payments)
- 2025$2,534 · 46 payments from 10 companies
- 2024$1,902 · 41 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $1,015 | 18 |
| Glaukos Corporation | $707.00 | 10 |
| Alcon Vision LLC | $337.22 | 5 |
| Biotissue Holdings Inc. | $158.16 | 3 |
| Tarsus Pharmaceuticals, Inc. | $84.49 | 3 |
What the 2025 payments were for
- Food and Beverage$2,534 · 46 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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