Physician Profile
Based in Stamford, CT, Gregory M. Gallousis, MD is listed in the NPI registry under ophthalmology. Gregory graduated from State University of New York Downstate Medical Center in 1992. Gregory is also listed as specializing in ophthalmology — glaucoma. According to Medicare claims data, Gregory cared for 967 Medicare patients across 1,277 services. The services billed most often include established patient problem focused exam of visual system, established patient complete exam of visual system, and exam of the internal drainage system of eye.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
999 SUMMER STREET SUITE 105
Stamford, CT 06905
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
1,277 services · 967 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
34 | |
| Laser repair to improve eye fluid flow | Procedure | 65855 |
18 | |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
26 | As often as other peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
264 | More often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
240 | As often as other peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
177 | More often than most peers in Ophthalmology |
| Photography of the retina | Treatment | 92250 |
111 | As often as other peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
86 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
74 | As often as other peers in Ophthalmology |
| Ct scan of cornea | Treatment | 92025 |
46 | As often as other peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Gallousis is an eye doctor in Stamford, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Dr. Gallousis is listed at 999 Summer Street Suite 105, Stamford, CT 06905. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (203) 359-2020. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Gallousis's National Provider Identifier is 1548202534. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Gallousis attended State University of New York Downstate Medical Center, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
Dr. Gallousis has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Gallousis performs procedures including removal of cataract with insertion of prosthetic lens and laser repair to improve eye fluid flow; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as established patient problem focused exam of visual system and established patient complete exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gallousis. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.