2026 NPPES data Optometrist NPI 1760405542 O.D.
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THOMAS DEMPSEY, O.D.

Optometrist in COLCHESTER, 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
145
Medicare Part D claims · 49 beneficiaries · Optometrist avg: 257
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: THOMAS DEMPSEY, O.D. is a Optometrist ([object Object]) practicing in COLCHESTER, Connecticut with a Medicare Part D prescribing footprint of 145 claims across 49 beneficiaries — 34% brand-name prescribing .

What stands out: THOMAS DEMPSEY, O.D. filed 145 Medicare Part D claims in 2023 across COLCHESTER, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

THOMAS DEMPSEY, O.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/25/2006

NPI 1760405542

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

145 44% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Connecticut

How Optometrist compares to other specialties among Connecticut providers

Connecticut providers

Optometrist share within Connecticut

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Connecticut

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Optometrist) — 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).

THOMAS DEMPSEY, O.D. is a Optometrist provider practicing in COLCHESTER, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: O.D.. NPI: 1760405542. 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.

THOMAS DEMPSEY, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 163 BROADWAY ST, COLCHESTER, CT, 06415, with a listed phone of (860) 537-2020. NPI 1760405542 was issued on 07/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DEMPSEY 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 145 prescription claims written by this provider, covering 49 Medicare beneficiaries and totaling roughly $73K in drug spend, split 34% brand-name and 66% 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.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 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

163 BROADWAY ST
COLCHESTER, CT 06415

Provider Details

NPI 1760405542
Specialty Optometrist
Credentials O.D.
Gender Male
NPI Issued 07/25/2006

Hospital and facility affiliations

Facilities where THOMAS DEMPSEY, O.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.

WILD APPLE EYE II LLC
COLCHESTER, CT
WILD APPLE EYE III LLC
HEBRON, 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

THOMAS DEMPSEY, O.D. — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 145 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.

145
Total Claims
$73K
Total Drug Cost
49
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
333
Total Day Supply
9,685
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$60K
Generic Drug Cost
$13K

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
1.04
Gender Split
53% female / 47% male

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
36
Timolol Maleate
21
Cyclosporine
16
Restasis
Cyclosporine
12

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

Optometrist Overview

How THOMAS DEMPSEY, O.D. fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

THOMAS DEMPSEY, O.D.'s 145 claims are below the specialty average of 257.

Nearby Optometrist Providers in Connecticut

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

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is THOMAS DEMPSEY, O.D.'s specialty?
THOMAS DEMPSEY, O.D. specializes in Optometrist and practices in COLCHESTER, Connecticut. Credentials: O.D..
How much does THOMAS DEMPSEY, O.D. prescribe under Medicare Part D?
In 2023, THOMAS DEMPSEY, O.D. wrote 145 Medicare Part D claims totaling $73K in drug costs for 49 beneficiaries.
Where is THOMAS DEMPSEY, O.D. located?
THOMAS DEMPSEY, O.D. is located at 163 BROADWAY ST, COLCHESTER, CT, 06415. Phone: (860) 537-2020.
What is THOMAS DEMPSEY, O.D.'s NPI number?
THOMAS DEMPSEY, O.D.'s National Provider Identifier (NPI) is 1760405542, issued on 07/25/2006.
Does THOMAS DEMPSEY, O.D. prescribe more brand-name or generic drugs?
THOMAS DEMPSEY, O.D.'s prescribing is 34% brand-name and 66% generic drugs by claim count, with $60K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does THOMAS DEMPSEY, O.D. prescribe most often?
Based on 2023 Medicare Part D data, THOMAS DEMPSEY, O.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Cyclosporine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS DEMPSEY, O.D. accept Medicare?
THOMAS DEMPSEY, O.D. appears in CMS Medicare data with 145 Part D claims and 49 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS DEMPSEY, O.D.'s credentials?
THOMAS DEMPSEY, O.D.'s NPI is 1760405542 with credentials O.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