2026 NPPES data Ophthalmology Physician NPI 1639179476 M.D.
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PATRICIA MCDONALD, M.D.

Ophthalmology Physician in FARMINGTON, 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
1K
Medicare Part D claims · 435 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
52%
generic claims · 48% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$145.79
7 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: PATRICIA MCDONALD, M.D. is a Ophthalmology Physician ([object Object]) practicing in FARMINGTON, Connecticut with a Medicare Part D prescribing footprint of 1K claims across 435 beneficiaries — 48% brand-name prescribing . Industry payments of $145.79 across 7 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: PATRICIA MCDONALD, M.D. filed 1,171 Medicare Part D claims in 2023 across FARMINGTON, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

PATRICIA MCDONALD, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

PATRICIA MCDONALD, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/22/2005

NPI 1639179476

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,171 18% 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).

PATRICIA MCDONALD, M.D. is a Ophthalmology Physician provider practicing in FARMINGTON, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1639179476. 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.

PATRICIA MCDONALD, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 210 MAIN STREET PO BOX 38, FARMINGTON, CT, 06032, with a listed phone of (860) 539-9136. NPI 1639179476 was issued on 07/22/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCDONALD 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 1,171 prescription claims written by this provider, covering 435 Medicare beneficiaries and totaling roughly $537K in drug spend, split 48% brand-name and 52% 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

210 MAIN STREET PO BOX 38
FARMINGTON, CT 06032

Provider Details

NPI 1639179476
Specialty Ophthalmology Physician
Credentials M.D.
Gender Female
NPI Issued 07/22/2005

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for PATRICIA MCDONALD, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$146

Largest payer

Harrow Eye, LLC

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

PATRICIA MCDONALD, M.D. — brand share 48.0%
Specialty average (est.)

48% brand-name claims vs 52% generic, on 1,171 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.

1,171
Total Claims
$537K
Total Drug Cost
435
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,622
Total Day Supply
75,379
Brand vs Generic
48% brand / 52% generic
Brand Drug Cost
$489K
Generic Drug Cost
$48K
Antibiotic Claims
15

Patient Demographics

Average Patient Age
79.0 years
Avg HCC Risk Score
1.24
Gender Split
67% female / 33% 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
346
Restasis
Cyclosporine
130
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
79
Timolol Maleate
76
Lumigan
Bimatoprost
67
Cyclosporine
56
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
37
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
34
Travoprost
30
Brimonidine Tartrate
25

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

Ophthalmology Physician Overview

How PATRICIA MCDONALD, 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

PATRICIA MCDONALD, M.D.'s 1,171 claims are below 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 MCDONALD.

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

Frequently Asked Questions

What is PATRICIA MCDONALD, M.D.'s specialty?
PATRICIA MCDONALD, M.D. specializes in Ophthalmology Physician and practices in FARMINGTON, Connecticut. Credentials: M.D..
How much does PATRICIA MCDONALD, M.D. prescribe under Medicare Part D?
In 2023, PATRICIA MCDONALD, M.D. wrote 1,171 Medicare Part D claims totaling $537K in drug costs for 435 beneficiaries.
Where is PATRICIA MCDONALD, M.D. located?
PATRICIA MCDONALD, M.D. is located at 210 MAIN STREET PO BOX 38, FARMINGTON, CT, 06032. Phone: (860) 539-9136.
What is PATRICIA MCDONALD, M.D.'s NPI number?
PATRICIA MCDONALD, M.D.'s National Provider Identifier (NPI) is 1639179476, issued on 07/22/2005.
Does PATRICIA MCDONALD, M.D. prescribe more brand-name or generic drugs?
PATRICIA MCDONALD, M.D.'s prescribing is 48% brand-name and 52% generic drugs by claim count, with $489K 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 PATRICIA MCDONALD, M.D. prescribe most often?
Based on 2023 Medicare Part D data, PATRICIA MCDONALD, M.D.'s most frequently prescribed drugs include Latanoprost, Restasis, Neomycin-Polymyxin-Dexameth. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PATRICIA MCDONALD, M.D. accept Medicare?
PATRICIA MCDONALD, M.D. appears in CMS Medicare data with 1,171 Part D claims and 435 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PATRICIA MCDONALD, M.D.'s credentials?
PATRICIA MCDONALD, M.D.'s NPI is 1639179476 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