2026 NPPES data Ophthalmology Physician NPI 1912905407 M.D.
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KEVIN DINOWITZ, M.D.

Ophthalmology Physician in BLOOMFIELD, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 622 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: KEVIN DINOWITZ, M.D. is a Ophthalmology Physician ([object Object]) practicing in BLOOMFIELD, Connecticut with a Medicare Part D prescribing footprint of 3K claims across 622 beneficiaries — 38% brand-name prescribing .

What stands out: KEVIN DINOWITZ, M.D. filed 2,639 Medicare Part D claims in 2023 across BLOOMFIELD, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

KEVIN DINOWITZ, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

KEVIN DINOWITZ, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/08/2005

NPI 1912905407

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

2,639 86% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Connecticut

How Ophthalmology Physician compares to other specialties among Connecticut providers

Connecticut providers

Ophthalmology Physician share within Connecticut

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Ophthalmology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ophthalmology Physician ABMS/AOA estimate

Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

KEVIN DINOWITZ, M.D. is a Ophthalmology Physician provider practicing in BLOOMFIELD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1912905407. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

KEVIN DINOWITZ, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 4 NORTHWESTERN DR, BLOOMFIELD, CT, 06002, with a listed phone of (860) 243-2020. NPI 1912905407 was issued on 07/08/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DINOWITZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 2,639 prescription claims written by this provider, covering 622 Medicare beneficiaries and totaling roughly $470K in drug spend, split 38% brand-name and 62% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

4 NORTHWESTERN DR
BLOOMFIELD, CT 06002

Provider Details

NPI 1912905407
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 07/08/2005

Hospital and facility affiliations

Facilities where KEVIN DINOWITZ, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

REFOCUS EYE HEALTH OF CONNECTICUT, PC
BLOOMFIELD, CT

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

KEVIN DINOWITZ, M.D. — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 2,639 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

2,639
Total Claims
$470K
Total Drug Cost
622
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,328
Total Day Supply
147,540
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$370K
Generic Drug Cost
$100K

Patient Demographics

Average Patient Age
77.4 years
Avg HCC Risk Score
1.15
Gender Split
64% female / 36% male
Age Distribution
<65: 15, 65-74: 229, 75-84: 262, 85+: 116

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Latanoprost
587
Prednisolone Acetate
333
Moxifloxacin
Moxifloxacin Hcl
234
Timolol Maleate
216
Brimonidine Tartrate
181
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
158
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
138
Prolensa
Bromfenac Sodium
137
Lumigan
Bimatoprost
110
Travoprost
95

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Ophthalmology Physician Overview

How KEVIN DINOWITZ, M.D. fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

KEVIN DINOWITZ, M.D.'s 2,639 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as DINOWITZ.

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KEVIN DINOWITZ, M.D.'s specialty?
KEVIN DINOWITZ, M.D. specializes in Ophthalmology Physician and practices in BLOOMFIELD, Connecticut. Credentials: M.D..
How much does KEVIN DINOWITZ, M.D. prescribe under Medicare Part D?
In 2023, KEVIN DINOWITZ, M.D. wrote 2,639 Medicare Part D claims totaling $470K in drug costs for 622 beneficiaries.
Where is KEVIN DINOWITZ, M.D. located?
KEVIN DINOWITZ, M.D. is located at 4 NORTHWESTERN DR, BLOOMFIELD, CT, 06002. Phone: (860) 243-2020.
What is KEVIN DINOWITZ, M.D.'s NPI number?
KEVIN DINOWITZ, M.D.'s National Provider Identifier (NPI) is 1912905407, issued on 07/08/2005.
Does KEVIN DINOWITZ, M.D. prescribe more brand-name or generic drugs?
KEVIN DINOWITZ, M.D.'s prescribing is 38% brand-name and 62% generic drugs by claim count, with $370K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does KEVIN DINOWITZ, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KEVIN DINOWITZ, M.D.'s most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Moxifloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KEVIN DINOWITZ, M.D. accept Medicare?
KEVIN DINOWITZ, M.D. appears in CMS Medicare data with 2,639 Part D claims and 622 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KEVIN DINOWITZ, M.D.'s credentials?
KEVIN DINOWITZ, M.D.'s NPI is 1912905407 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology