Dr. Gregory M. Gallousis, MD

  • Waterbury, CT
  • Ophthalmologist
NPI1548202534PAC ID1254232853
Medicare services, 2024
1,277
Medicare patients, 2024
281
Part D claims, 2024
1,477
Publications
1
MIPS score, 2024
86
Practice address
87 Grandview Avenue, Waterbury, CT 06708
Practice phone
Call (203) 574-2020
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

ReFocus Eye Surgery Center Waterbury

Surgery Center - Medicare-Certified · Waterbury, Connecticut

See all 5 affiliations

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Dr. Gregory M. Gallousis is an ophthalmologist in Waterbury, Connecticut

Dr. Gallousis practices at ReFocus Eye Surgery Center Waterbury in Waterbury, Connecticut.

Dr. Gallousis' NPI, 1548202534, was assigned on June 12, 2006. Dr. Gallousis graduated from State University of New York Downstate Medical Center College of Medicine in 1992. Dr. Gallousis holds Connecticut license 044280.

NPI and contact details
Medicare PAC ID
1254232853
NPI enumeration date
June 12, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(203) 574-2020
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
60
Medical school graduation
1992

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Gregory M. Gallousis practices at ReFocus Eye Surgery Center Waterbury in Waterbury, Connecticut

Dr. Gallousis' primary practice is ReFocus Eye Surgery Center Waterbury, at 87 Grandview Avenue, Waterbury, CT 06708. The practice phone is (203) 574-2020.

  • ReFocus Eye Surgery Center Waterbury
    87 Grandview Avenue, Waterbury, CT 06708Phone(203) 574-2020

Source: Dmand AI Affiliation Data

Dr. Gregory M. Gallousis is affiliated with 4 sites of care and 1 medical group

Dr. Gallousis' primary practice is ReFocus Eye Surgery Center Waterbury in Waterbury, Connecticut. Dr. Gallousis is also affiliated with Stamford Hospital. Dmand AI also links Dr. Gallousis to 1 more physician office, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Gallousis

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Gregory M. Gallousis' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gallousis practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
ReFocus Eye Surgery Center WaterburyAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Gregory M. Gallousis is one of 259 ophthalmologists in Connecticut

Ophthalmology is Dr. Gallousis' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Gallousis is licensed in Connecticut.

Specialties and state licenses

  • Ophthalmology, ConnecticutPrimaryLicense 044280 · taxonomy 207W00000X

Ophthalmologists near Dr. Gallousis

Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Gregory M. Gallousis billed Medicare for 1,277 services in 2024

CMS data shows 1,277 Medicare services from Dr. Gallousis across 16 procedure codes in 2024, for 281 Medicare patients. Medicare paid $82,251 for them.

Medicare services, 20241,277
Medicare patients281
Paid by Medicare$82,251
Procedure codes16

Dr. Gallousis' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 1,4612024: 1,09325%
Office and hospital visits
2023: 1782024: 10640%
Surgery
2023: 662024: 5221%
Imaging
2023: 172024: 2653%

Where Dr. Gallousis' Medicare services took place, 2024

  • In an office1,22596%
  • In a facility524%

Dr. Gallousis compared with the Connecticut median for ophthalmologists, 2024

  • Dr. Gallousis
  • Connecticut median
Medicare services
1,277vs 1,15011% above
Medicare patients
281vs 47240% below
Part D claims
1,390vs 6642.1 times

Medians across 287 ophthalmologists in Connecticut with Dmand AI profiles that report each measure.

Dr. Gallousis' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Gallousis

Need commercial claims for Dr. Gallousis?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gallousis and other ophthalmologists in Connecticut.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gregory M. Gallousis treated 281 Medicare patients in 2024, average age 77

CMS counts 281 Medicare patients who saw Dr. Gallousis in 2024. The largest group is 75 to 84, with 106 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 26% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Gallousis' median patient age at 72, with 59% women.

Medicare patients, 2024281
Average age77
Average risk score1.15
Also on Medicaid26%

Dr. Gallousis' Medicare patients by age, 2024

Dr. Gallousis' Medicare patients by sex, 2024

  • Women17161%
  • Men11039%

Chronic conditions among Dr. Gallousis' Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure72%
  3. Arthritis42%
  4. Diabetes28%
  5. Ischemic heart disease28%
  6. Cancer18%
  7. Mood disorders18%
  8. Anxiety17%

Share of Medicare patients with each condition. A patient can have several.

Dr. Gallousis' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women59%
  • Men38%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Gregory M. Gallousis wrote 1,477 Medicare Part D claims in 2024

In 2024, Dr. Gallousis wrote 1,477 Medicare Part D claims for 252 patients. 54% of them were for generic drugs. CMS names the drug for 1,390 of them, across 23 drugs with 11 or more claims each, at $158,117 in total drug cost. In 2023, CMS named 1,635 claims across 23 drugs.

Part D claims, 20241,477
Drugs named by CMS23
Total drug cost$158,117
Part D patients252

Dr. Gallousis' Part D claims by kind of drug, 2024

  • Generic804 claims54%
  • Brand-name673 claims46%

Dr. Gallousis' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,6352024: 1,39015%

Drugs named by CMS: 23 in 2024, 23 in 2023.

See all prescribing by Dr. Gallousis

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Gregory M. Gallousis scored 86 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Gallousis for performance year 2024, reported as part of a group. Dr. Gallousis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 46 procedures of cataract surgery by Dr. Gallousis, more than 62% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Gallousis' MIPS scores, performance year 2024

  • 86of 100Final score
  • 89.6of 100Quality
  • 95of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 68of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Gallousis ranks in Medicare procedure volume

Cataract surgery
62nd percentile46 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

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Dr. Gregory M. Gallousis has 1 publication on record

Dmand AI links 1 paper to Dr. Gallousis. Dr. Gallousis' most frequent co-authors are Russell Micah Levine, MD and Ann Shue, MD.

Papers1

Dr. Gallousis' most frequent co-authors

Recent publications by Dr. Gallousis

See all 1 publications and co-authors

See who Dr. Gallousis researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gallousis works with, so you can find a warm path to the right ophthalmologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Gregory M. Gallousis received $12,140 in industry payments from 2016 to 2025

CMS Open Payments shows 234 general payments to Dr. Gallousis from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $4,129.

General payments to Dr. Gallousis by program year, 2016 to 2025

General payments to Dr. Gallousis by kind, 2016 to 2025

$12.1Kin total
  • Food and beverage$12,05799%
  • Gifts$450%
  • Education$380%

Companies that paid Dr. Gallousis the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Gallousis

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Gregory M. Gallousis graduated from State University of New York Downstate Medical Center College of Medicine

Dr. Gallousis graduated from State University of New York Downstate Medical Center College of Medicine in 1992.

  1. Medical schoolState University of New York Downstate Medical Center College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Gregory M. Gallousis's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gregory M. Gallousis

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Gregory M. Gallousis' NPI number?

Dr. Gregory M. Gallousis' NPI number is 1548202534. It was assigned on June 12, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Gregory M. Gallousis?

Dr. Gregory M. Gallousis is an ophthalmologist in Waterbury, Connecticut. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. Gregory M. Gallousis practice?

Dr. Gallousis practices at 87 Grandview Avenue, Waterbury, CT 06708. Dr. Gallousis' primary practice is ReFocus Eye Surgery Center Waterbury in Waterbury, Connecticut. Dmand AI also links Dr. Gallousis to 1 physician office, 1 group practice or clinic and 1 medical group.

What is Dr. Gregory M. Gallousis' office phone number?

The practice phone on file for Dr. Gallousis is (203) 574-2020.

What is Dr. Gregory M. Gallousis' medical license number?

Dr. Gallousis holds Connecticut license 044280.

Which hospitals is Dr. Gregory M. Gallousis affiliated with?

Dr. Gallousis is affiliated with Stamford Hospital.

Does Dr. Gregory M. Gallousis accept Medicare?

Yes. CMS data shows Dr. Gallousis billed Medicare for 1,277 services in 2024, and Dr. Gallousis accepts Medicare assignment.

What is Dr. Gregory M. Gallousis' MIPS score?

Dr. Gallousis' MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.

How many Medicare patients does Dr. Gregory M. Gallousis see?

CMS counts 281 Medicare patients who saw Dr. Gallousis in 2024, with an average age of 77.

What services does Dr. Gregory M. Gallousis bill to Medicare?

In 2024, Dr. Gallousis' most billed Medicare services were eye exam or test (92012), eye exam or test (92014) and eye exam or test (92020).

Show 6 more questionsShow fewer questions

Where did Dr. Gregory M. Gallousis go to medical school?

Dr. Gallousis graduated from State University of New York Downstate Medical Center College of Medicine in 1992.

What drugs does Dr. Gregory M. Gallousis prescribe most?

In 2024 Medicare Part D data, Dr. Gallousis' most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Timolol Maleate.

Has Dr. Gregory M. Gallousis received payments from drug or device companies?

CMS Open Payments shows $12,140 in general payments to Dr. Gallousis from 28 companies from 2016 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Gregory M. Gallousis been practicing?

Dr. Gallousis graduated from medical school in 1992, 34 years ago.

Does Dr. Gregory M. Gallousis do research?

Dmand AI links 1 publication to Dr. Gallousis.

Who does Dr. Gregory M. Gallousis publish with?

Dr. Gallousis' most frequent co-authors are Russell Micah Levine, MD (1 shared paper) and Ann Shue, MD (1 shared paper).

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