Dr. Thomas L. Berenberg, MD

  • Waterbury, CT
  • Retina specialist (ophthalmology) physician
NPI1407084544PAC ID7214161678
Medicare services, 2024
15,834
Medicare patients, 2024
733
Part D claims, 2024
753
Publications
4
MIPS score, 2024
87
Practice address
1312 W Main St, Waterbury, CT 06708
Practice phone
Call (203) 756-6422
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Naugatuck Valley Endoscopy Center, LLC

Waterbury, Connecticut

See all 4 affiliations

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Dr. Thomas L. Berenberg is a retina specialist (ophthalmology) physician in Waterbury, Connecticut

Dr. Berenberg practices at Naugatuck Valley Endoscopy Center, LLC in Waterbury, Connecticut.

Dr. Berenberg's NPI, 1407084544, was assigned on June 28, 2009. Dr. Berenberg graduated from Perelman School of Medicine - Philadelphia in 2009. Dr. Berenberg holds Connecticut license 054581.

NPI and contact details
Medicare PAC ID
7214161678
NPI enumeration date
June 28, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(203) 756-6422
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
43
Medical school graduation
2009

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

Dr. Thomas L. Berenberg practices at Naugatuck Valley Endoscopy Center, LLC in Waterbury, Connecticut

Dr. Berenberg's primary practice is Naugatuck Valley Endoscopy Center, LLC, at 1312 W Main St, Waterbury, CT 06708 in Naugatuck Vly County. The practice phone is (203) 756-6422.

  • Naugatuck Valley Endoscopy Center, LLC
    1312 W Main St, Waterbury, CT 06708 · Naugatuck Vly CountyPhone(203) 756-6422

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Thomas L. Berenberg is affiliated with 3 sites of care and 1 medical group

Dr. Berenberg's primary practice is Naugatuck Valley Endoscopy Center, LLC in Waterbury, Connecticut. Dr. Berenberg is also affiliated with Yale New Haven Hospital. Dmand AI also links Dr. Berenberg to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Berenberg

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Thomas L. Berenberg's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Berenberg practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Naugatuck Valley Endoscopy Center, LLCAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas L. Berenberg is one of 15 retina specialist (ophthalmology) physicians in Connecticut

Retina specialist is Dr. Berenberg's primary specialty in the NPI Registry, under taxonomy code 207WX0107X. Dr. Berenberg is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Berenberg's licenses on file in 3 states: Connecticut, New York and Pennsylvania.

Specialties and state licenses

  • Retina specialist (ophthalmology), ConnecticutPrimaryLicense 054581 · 2015 to 2026 · taxonomy 207WX0107X
  • New York license2013 to 2017
  • Pennsylvania license2009 to 2010

Clinical focus

Dmand AI lists age-related macular degeneration, cataract, dry eye, eyelid inflammation, hypertensive retinopathy, inflammation of iris, laser destruction of retinal or choroid lesions and retinal detachment among the conditions Dr. Berenberg treats.

Retina specialist (ophthalmology) physicians near Dr. Berenberg

Counts of retina specialist (ophthalmology) physicians with a Dmand AI profile, by place and practice. Each opens the list.

15retina specialist (ophthalmology) physicians in Connecticut
3retina specialist (ophthalmology) physicians in Waterbury

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

Dr. Thomas L. Berenberg billed Medicare for 15,834 services in 2024

CMS data shows 15,834 Medicare services from Dr. Berenberg across 11 procedure codes in 2024, for 733 Medicare patients. Medicare paid $1,739,042 for them. Every service was in an office.

Medicare services, 202415,834
Medicare patients733
Paid by Medicare$1.7M
Procedure codes11

Dr. Berenberg's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 8,7222024: 11,18328%
Tests and treatments
2023: 1,9102024: 2,48430%
Office and hospital visits
2023: 1,2712024: 1,14410%
Surgery
2023: 8962024: 1,00913%
Imaging
2023: 02024: 14

Dr. Berenberg compared with the Connecticut median for retina specialist (ophthalmology) physicians, 2024

  • Dr. Berenberg
  • Connecticut median
Medicare services
15,834vs 16,7796% below
Medicare patients
733vs 733Close to median
Part D claims
639vs 42451% above

Medians across 14 retina specialist (ophthalmology) physicians in Connecticut with Dmand AI profiles that report each measure.

Dr. Berenberg's 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. Berenberg

Need commercial claims for Dr. Berenberg?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Berenberg and other retina specialist (ophthalmology) physicians in Connecticut.

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

Dr. Thomas L. Berenberg treated 733 Medicare patients in 2024, average age 79

CMS counts 733 Medicare patients who saw Dr. Berenberg in 2024. The largest group is 75 to 84, with 331 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Berenberg's median patient age at 76, with 61% women.

Medicare patients, 2024733
Average age79
Average risk score1.29
Also on Medicaid11%

Dr. Berenberg's Medicare patients by age, 2024

Dr. Berenberg's Medicare patients by sex, 2024

  • Women45562%
  • Men27838%

Chronic conditions among Dr. Berenberg's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis48%
  4. Diabetes29%
  5. Ischemic heart disease28%
  6. Anxiety25%
  7. Atrial fibrillation20%
  8. Chronic kidney disease20%

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

Dr. Berenberg's patients across all payers

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

Patient panel by age, all payers

Median age 76

Patient panel by sex, all payers

  • Women61%
  • Men37%

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

Dr. Thomas L. Berenberg wrote 753 Medicare Part D claims in 2024

In 2024, Dr. Berenberg wrote 753 Medicare Part D claims for 194 patients. 63% of them were for generic drugs. CMS names the drug for 639 of them, across 14 drugs with 11 or more claims each, at $26,114 in total drug cost. In 2023, CMS named 478 claims across 10 drugs.

Part D claims, 2024753
Drugs named by CMS14
Total drug cost$26,114
Part D patients194

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

  • Generic472 claims63%
  • Brand-name281 claims37%

Dr. Berenberg's 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: 4782024: 63934%

Drugs named by CMS: 14 in 2024, 10 in 2023.

See all prescribing by Dr. Berenberg

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. Thomas L. Berenberg scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Berenberg for performance year 2024, reported as part of a group. Dr. Berenberg accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Berenberg's MIPS scores, performance year 2024

  • 87of 100Final score
  • 92.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 66of 100Cost

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

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

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Dr. Thomas L. Berenberg has 4 publications on record

Dmand AI links 4 papers to Dr. Berenberg in 2014. The most frequent topics are Fluorescein Angiography. Dr. Berenberg has published most often in Retina. Dr. Berenberg's most frequent co-authors are Alexander J. Brucker, MD, Robison Chan, MD and Brian Madow, MD.

Papers4

Topics Dr. Berenberg writes about most

  • Fluorescein Angiography

Dr. Berenberg's most frequent co-authors

Recent publications by Dr. Berenberg

See all 4 publications and co-authors

See who Dr. Berenberg researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Berenberg works with, so you can find a warm path to the right retina specialist (ophthalmology) physicians.

How network discovery works

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

Dr. Thomas L. Berenberg graduated from Perelman School of Medicine - Philadelphia

Dr. Berenberg graduated from Perelman School of Medicine - Philadelphia in 2009.

  1. Medical schoolPerelman School of Medicine - Philadelphia
  2. Board certified in ophthalmologyAmerican Board of Ophthalmology

Source: Dmand AI Professional Profile Data

Dr. Thomas L. Berenberg accepts plans from 16 insurance carriers

Dr. Berenberg is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

Plan types Dr. Berenberg accepts, by number of carriers

  1. PPO11
  2. Medicare9
  3. HMO8
  4. EPO5
  5. POS5

Source: Dmand AI Insurance Network Data

Sources for Dr. Thomas L. Berenberg'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Thomas L. Berenberg

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. Thomas L. Berenberg's NPI number?

Dr. Thomas L. Berenberg's NPI number is 1407084544. It was assigned on June 28, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas L. Berenberg?

Dr. Thomas L. Berenberg is a retina specialist (ophthalmology) physician in Waterbury, Connecticut. The primary specialty in the NPI Registry is Retina Specialist (Ophthalmology) Physician (taxonomy code 207WX0107X).

Where does Dr. Thomas L. Berenberg practice?

Dr. Berenberg practices at 1312 W Main St, Waterbury, CT 06708. Dr. Berenberg's primary practice is Naugatuck Valley Endoscopy Center, LLC in Waterbury, Connecticut. Dmand AI also links Dr. Berenberg to 1 group practice or clinic and 1 medical group.

What is Dr. Thomas L. Berenberg's office phone number?

The practice phone on file for Dr. Berenberg is (203) 756-6422.

What is Dr. Thomas L. Berenberg's medical license number?

Dr. Berenberg holds Connecticut license 054581, one of the licenses on file in 3 states.

Which states has Dr. Thomas L. Berenberg been licensed in?

Dmand AI has state licenses on file for Dr. Berenberg in Connecticut (2015 to 2026), New York (2013 to 2017) and Pennsylvania (2009 to 2010).

Which hospitals is Dr. Thomas L. Berenberg affiliated with?

Dr. Berenberg is affiliated with Yale New Haven Hospital.

Does Dr. Thomas L. Berenberg accept Medicare?

Yes. CMS data shows Dr. Berenberg billed Medicare for 15,834 services in 2024, and Dr. Berenberg accepts Medicare assignment.

What is Dr. Thomas L. Berenberg's MIPS score?

Dr. Berenberg's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

How many Medicare patients does Dr. Thomas L. Berenberg see?

CMS counts 733 Medicare patients who saw Dr. Berenberg in 2024, with an average age of 79.

Show 8 more questionsShow fewer questions

Is Dr. Thomas L. Berenberg board certified?

Yes. Dr. Berenberg is board certified in ophthalmology by the American Board of Ophthalmology.

What services does Dr. Thomas L. Berenberg bill to Medicare?

In 2024, Dr. Berenberg's most billed Medicare services were injected or infused drug (J2777), eye exam or test (92134) and injected or infused drug (J0178).

Where did Dr. Thomas L. Berenberg go to medical school?

Dr. Berenberg graduated from Perelman School of Medicine - Philadelphia in 2009.

What drugs does Dr. Thomas L. Berenberg prescribe most?

In 2024 Medicare Part D data, Dr. Berenberg's most prescribed drugs by claims were Prednisolone Acetate, Ketorolac Tromethamine and Brimonidine Tartrate.

How long has Dr. Thomas L. Berenberg been practicing?

Dr. Berenberg graduated from medical school in 2009, 17 years ago.

Does Dr. Thomas L. Berenberg do research?

Dmand AI links 4 publications to Dr. Berenberg.

Who does Dr. Thomas L. Berenberg publish with?

Dr. Berenberg's most frequent co-authors are Alexander J. Brucker, MD (1 shared paper), Robison Chan, MD (1 shared paper) and Brian Madow, MD (1 shared paper).

What insurance does Dr. Thomas L. Berenberg accept?

Dr. Berenberg is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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