2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1366548174 M.D.
Verify on CMS →

BRIAN KOSOBUCKI, M.D.

Retina Specialist (Ophthalmology) Physician in WINSTON SALEM, North Carolina. 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 · 443 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$244.67
11 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: BRIAN KOSOBUCKI, M.D. is a Retina Specialist (Ophthalmology) Physician ([object Object]) practicing in WINSTON SALEM, North Carolina with a Medicare Part D prescribing footprint of 3K claims across 443 beneficiaries — 31% brand-name prescribing . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $244.67 across 11 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: BRIAN KOSOBUCKI, M.D. reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 3,451 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

BRIAN KOSOBUCKI, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

BRIAN KOSOBUCKI, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 09/16/2006

NPI 1366548174

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

3,451 518% vs specialty avg

2023 prescription claims

Specialty avg: 558

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in North Carolina

How Retina Specialist (Ophthalmology) Physician compares to other specialties among North Carolina providers

North Carolina providers

Retina Specialist (Ophthalmology) Physician share within North Carolina

1. Retina Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Retina Specialist (Ophthalmology) Physician share within North Carolina

Medicare quality performance — MIPS

BRIAN KOSOBUCKI, M.D.'s 2023 MIPS final score plotted against the Retina Specialist (Ophthalmology) Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Retina Specialist (Ophthalmology) Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Retina Specialist (Ophthalmology) Physician) — 100/100 vs national avg 83.1

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).

BRIAN KOSOBUCKI, M.D. is a Retina Specialist (Ophthalmology) Physician provider practicing in WINSTON SALEM, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1366548174. 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.

BRIAN KOSOBUCKI, M.D. appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding M.D. credentials at 3333 BROOKVIEW HILLS BLVD, WINSTON SALEM, NC, 27103, with a listed phone of (336) 842-3780. NPI 1366548174 was issued on 09/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOSOBUCKI 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 3,451 prescription claims written by this provider, covering 443 Medicare beneficiaries and totaling roughly $229K in drug spend, split 31% brand-name and 69% generic by claim count, with an opioid prescribing rate of 0.6%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.

Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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

3333 BROOKVIEW HILLS BLVD
WINSTON SALEM, NC 27103

Provider Details

NPI 1366548174
Specialty Retina Specialist (Ophthalmology) Physician
Credentials M.D.
Gender Male
NPI Issued 09/16/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

100
Final Score
Avg: 83.1
100
Quality

Reporting: Group practice

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 BRIAN KOSOBUCKI, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$245

Largest payer

ABBVIE INC.

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

BRIAN KOSOBUCKI, M.D. — brand share 31.0%
Specialty average (est.)

31% brand-name claims vs 69% generic, on 3,451 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.

3,451
Total Claims
$229K
Total Drug Cost
443
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,992
Total Day Supply
136,177
Brand vs Generic
31% brand / 69% generic
Brand Drug Cost
$158K
Generic Drug Cost
$70K
Opioid Claims
19 (0.6% rate)
Antibiotic Claims
54

Patient Demographics

Average Patient Age
73.7 years
Avg HCC Risk Score
1.76
Gender Split
64% female / 36% male
Age Distribution
<65: 43, 65-74: 191, 75-84: 156, 85+: 53

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Ketorolac Tromethamine
812
Prednisolone Acetate
652
Brimonidine Tartrate
432
Latanoprost
205
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
193
Dexamethasone Sodium Phosphate
161
Valacyclovir
Valacyclovir Hcl
123
Dorzolamide Hcl
101
Prolensa
Bromfenac Sodium
80
Lotemax Sm
Loteprednol Etabonate
65

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

Retina Specialist (Ophthalmology) Physician Overview

How BRIAN KOSOBUCKI, M.D. fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.

913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider

BRIAN KOSOBUCKI, M.D.'s 3,451 claims are above the specialty average of 558.

Nearby Retina Specialist (Ophthalmology) Physician Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as KOSOBUCKI.

Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRIAN KOSOBUCKI, M.D.'s specialty?
BRIAN KOSOBUCKI, M.D. specializes in Retina Specialist (Ophthalmology) Physician and practices in WINSTON SALEM, North Carolina. Credentials: M.D..
How much does BRIAN KOSOBUCKI, M.D. prescribe under Medicare Part D?
In 2023, BRIAN KOSOBUCKI, M.D. wrote 3,451 Medicare Part D claims totaling $229K in drug costs for 443 beneficiaries.
What is BRIAN KOSOBUCKI, M.D.'s Medicare quality score?
BRIAN KOSOBUCKI, M.D. has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is BRIAN KOSOBUCKI, M.D. located?
BRIAN KOSOBUCKI, M.D. is located at 3333 BROOKVIEW HILLS BLVD, WINSTON SALEM, NC, 27103. Phone: (336) 842-3780.
What is BRIAN KOSOBUCKI, M.D.'s NPI number?
BRIAN KOSOBUCKI, M.D.'s National Provider Identifier (NPI) is 1366548174, issued on 09/16/2006.
Does BRIAN KOSOBUCKI, M.D. prescribe more brand-name or generic drugs?
BRIAN KOSOBUCKI, M.D.'s prescribing is 31% brand-name and 69% generic drugs by claim count, with $158K in brand drug costs.
Does BRIAN KOSOBUCKI, M.D. prescribe opioids?
Yes, BRIAN KOSOBUCKI, M.D. had 19 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US?
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does BRIAN KOSOBUCKI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BRIAN KOSOBUCKI, M.D.'s most frequently prescribed drugs include Ketorolac Tromethamine, Prednisolone Acetate, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN KOSOBUCKI, M.D. accept Medicare?
BRIAN KOSOBUCKI, M.D. appears in CMS Medicare data with 3,451 Part D claims and 443 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN KOSOBUCKI, M.D.'s credentials?
BRIAN KOSOBUCKI, M.D.'s NPI is 1366548174 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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