2026 NPPES data Ophthalmology Physician NPI 1548600372 MD
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DONG-WOUK PARK, MD

Ophthalmology Physician in LONGVIEW, Washington. 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
780
Medicare Part D claims · 182 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.83/100
▲ 15 pts above national avg 83.1 · [object Object]

What the federal data shows

DONG-WOUK PARK, MD reported a CMS MIPS final score of 97.83/100 — above the 83.1 national average — and filed 780 Medicare Part D claims in 2023.

97.83/100
MIPS score · +15 vs avg
780
Part D claims, 2023
65%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

DONG-WOUK PARK, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

98 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

DONG-WOUK PARK, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about DONG-WOUK PARK, MD?

High performer (top quartile)

NPI registry status

Active

Issued 06/25/2013

NPI 1548600372

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

780 45% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

97.83/100 14.730000000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Washington

How Ophthalmology Physician compares to other specialties among Washington providers

Washington providers

Ophthalmology Physician share within Washington

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

Medicare quality performance — MIPS

DONG-WOUK PARK, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
97.83/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 97.83/100 vs national avg 83.1

0%100%National avg83%97.8%
MIPS final score (Ophthalmology Physician) — 97.83/100 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).

DONG-WOUK PARK, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 600 TRIANGLE SHOPPING CTR STE 400, LONGVIEW, WA, 98632, with a listed phone of (360) 423-0220. NPI 1548600372 was issued on 06/25/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PARK 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 780 prescription claims written by this provider, covering 182 Medicare beneficiaries and totaling roughly $56K in drug spend, split 35% brand-name and 65% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.83/100 for the 2023 performance year (Quality 80.9759), compared with the national average of 83.1.

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

600 TRIANGLE SHOPPING CTR STE 400
LONGVIEW, WA 98632

Provider Details

NPI 1548600372
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 06/25/2013

CMS Quality Score (MIPS)

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

97.83
Final Score
Avg: 83.1
80.9759
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where DONG-WOUK PARK, MD 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.

UNIVERSITY PROFESSIONAL SERVICES
ASTORIA, OR

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

License & disciplinary context — Washington WMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 — they are NOT specific to DONG-WOUK PARK, MD. To verify DONG-WOUK PARK, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

DONG-WOUK PARK, MD — brand share 35.0%
Specialty average (est.)

35% brand-name claims vs 65% generic, on 780 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.

780
Total Claims
$56K
Total Drug Cost
182
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,008
Total Day Supply
26,737
Brand vs Generic
35% brand / 65% generic
Brand Drug Cost
$45K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
1.26
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

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

What DONG-WOUK PARK, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisolone Acetate
138
Latanoprost
131
Diclofenac Sodium
126
Ofloxacin
106
Brimonidine Tartrate
82
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
49
Restasis
Cyclosporine
26
Timolol Maleate
26
Rhopressa
Netarsudil Mesylate
18
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
14

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

Ophthalmology Physician Overview

How DONG-WOUK PARK, MD 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

DONG-WOUK PARK, MD's 780 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Washington

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

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

Frequently Asked Questions

What is DONG-WOUK PARK, MD's specialty?
DONG-WOUK PARK, MD specializes in Ophthalmology Physician and practices in LONGVIEW, Washington. Credentials: MD.
How much does DONG-WOUK PARK, MD prescribe under Medicare Part D?
In 2023, DONG-WOUK PARK, MD wrote 780 Medicare Part D claims totaling $56K in drug costs for 182 beneficiaries.
What is DONG-WOUK PARK, MD's Medicare quality score?
DONG-WOUK PARK, MD has a CMS MIPS Final Score of 97.83/100 (Quality: 80.9759). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DONG-WOUK PARK, MD located?
DONG-WOUK PARK, MD is located at 600 TRIANGLE SHOPPING CTR STE 400, LONGVIEW, WA, 98632. Phone: (360) 423-0220.
What is DONG-WOUK PARK, MD's NPI number?
DONG-WOUK PARK, MD's National Provider Identifier (NPI) is 1548600372, issued on 06/25/2013.
Does DONG-WOUK PARK, MD prescribe more brand-name or generic drugs?
DONG-WOUK PARK, MD's prescribing is 35% brand-name and 65% generic drugs by claim count, with $45K 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 DONG-WOUK PARK, MD prescribe most often?
Based on 2023 Medicare Part D data, DONG-WOUK PARK, MD's most frequently prescribed drugs include Prednisolone Acetate, Latanoprost, Diclofenac Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DONG-WOUK PARK, MD accept Medicare?
DONG-WOUK PARK, MD appears in CMS Medicare data with 780 Part D claims and 182 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DONG-WOUK PARK, MD's credentials?
DONG-WOUK PARK, MD's NPI is 1548600372 with credentials MD. 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