Thomas Berenberg, M.D.
Retina Specialist (Ophthalmology) Physician · Waterbury, CT
Thomas Berenberg, M.D. is a retina specialist (ophthalmology) physician with a practice address in Waterbury, Connecticut, and NPI 1407084544, issued on Jun 28, 2009. Check the license (Connecticut 054581, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Thomas Berenberg
- Credential
- M.D.
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- 054581 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1201 W Main St, Waterbury, CT 06708
- Phone
- (203) 573-4803
- Enumerated
- Jun 28, 2009
- Record last updated
- Jun 26, 2024
- Fax
- (203) 573-4805
- Medicare enrollment
- Enrolled (PECOS I20160122001941); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 14 in Connecticut → Look up another NPI →
Also registered at 1201 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laura Andrews, MDOphthalmology Physician1710390646
- Peter Branden, M.D.Glaucoma Specialist (Ophthalmology) Physician1588636807
- Cinthia Covey, M.D.Ophthalmology Physician1174714117
- Tara Cronin, M.D.Pediatric Ophthalmology and Strabismus Specialist Physician1174721864
- Nhu-Y Dao, M.D.Ophthalmology Physician1346506094
- Joel Geffin, M.D.Cornea and External Diseases Specialist Physician1659341675
Verify Thomas Berenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 054581Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
753 Medicare Part D claims for 194 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Prednisolone Acetate179 claims
- Ketorolac Tromethamine137 claims
- Brimonidine Tartrate69 claims
- Latanoprost51 claims
- Moxifloxacin39 claims
- Erythromycin31 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Eye Care Group, P.C.Waterbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Berenberg among 14 retina specialist (ophthalmology) physician records in Connecticut
Thomas Berenberg, M.D. is one of 14 retina specialist (ophthalmology) physician records with a practice address in Connecticut. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 50% of them.
- NPI issued2009 · 50% of these records are older, 43% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2009 · median 2002 among the 12 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in Connecticut
There are 14 retina specialist (ophthalmology) physician records in Connecticut.
All 14 in Connecticut → Every provider in Waterbury → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Craig Sklar, M.D.Waterbury, CT 067081215907225
- Stephanie Sugin, M.D.Waterbury, CT 067081114997137
- Armand Daccache, MDDanbury, CT 068101902889066
- Samantha PaulDanbury, CT 068101104453042
- Vincent Reppucci, MDDanbury, CT 068101568493724
- Richard Scartozzi, M.D.Danbury, CT 068101487688826
- Nauman Chaudhry, M.D.Waterford, CT 063851770513715
- Juner Colina-Biscotto, M.DWaterford, CT 063851457510687
Common questions
What is Thomas Berenberg, M.D.'s NPI number?
Thomas Berenberg, M.D.'s National Provider Identifier (NPI) is 1407084544, issued on Jun 28, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Berenberg, M.D. located?
The NPPES record lists a practice address at 1201 W Main St, Waterbury, CT, 06708. Phone: (203) 573-4803. Providers update this record themselves, so call before visiting.
How can I verify Thomas Berenberg, M.D.'s license?
NPPES lists Connecticut license number 054581, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas Berenberg, M.D. prescribe under Medicare Part D?
In 2024, Thomas Berenberg, M.D. had 753 Medicare Part D claims for 194 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
What is Thomas Berenberg, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.