Yun Ja Park, M.D.
Ophthalmology Physician · Rockville, MD
Yun Ja Park, M.D. is an ophthalmology physician with a practice address in Rockville, Maryland, and NPI 1821263294, issued on Apr 28, 2008. Check the license (Maryland D0077605, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Yun Ja Park
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- D0077605 MD
25MA09145300 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 11140 Rockville Pike, Rockville, MD 20852
- Phone
- (301) 881-5888
- Enumerated
- Apr 28, 2008
- Record last updated
- Nov 20, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (301) 881-2945
- Medicare enrollment
- Enrolled (PECOS I20141114000456); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 588 in Maryland → Look up another NPI →
Also registered at 11140 Rockville Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mireille DalmeidaTechnician/Technologist1003753468
- Madison DymondMental Health Counselor1548196637
- Erin Gates, LGSWSocial Worker1306223953
- Mark Godec, M.D.Neurology Physician1194943464
- Iris Goldblatt, LMFTMarriage & Family Therapist1952808883
- Silviana Guerra, PSYDPsychologist1730534231
Verify Yun Ja Park in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0077605Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average ophthalmology physician in 2024
1,812 Medicare Part D claims for 402 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Latanoprost469 claims
- Dorzolamide-Timolol145 claims
- Combigan137 claims
- Lumigan123 claims
- Restasis112 claims
- Dorzolamide Hcl78 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,648.70
73 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Montgomery Eye Physicians And Surgeons P.A.Rockville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yun Ja Park among 588 ophthalmology physician records in Maryland
Yun Ja Park, M.D. is one of 588 ophthalmology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 66% of them.
- NPI issued2008 · 66% of these records are older, 29% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2008 · median 2002 among the 369 with a school on file
- Record last updated2014 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Maryland
There are 588 ophthalmology physician records in Maryland.
All 588 in Maryland → Every provider in Rockville → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Stacy Bang, M.D.Rockville, MD 208521053589499
- Robert Chu, M.D.Rockville, MD 208521811997117
- Lawrence Frank, M.D.Rockville, MD 208521619998036
- Reena Garg, MDRockville, MD 208521457586299
- Seema Gupta, M.D.Rockville, MD 208521710973375
- Murray Hammerman, M.D.Rockville, MD 208521427120666
- Mark Hendrix, M.D.Rockville, MD 208521043219124
- Natasha Herz, MDRockville, MD 208521104830447
Common questions
What is Yun Ja Park, M.D.'s NPI number?
Yun Ja Park, M.D.'s National Provider Identifier (NPI) is 1821263294, issued on Apr 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Yun Ja Park, M.D. located?
The NPPES record lists a practice address at 11140 Rockville Pike, Rockville, MD, 20852. Phone: (301) 881-5888. Providers update this record themselves, so call before visiting.
How can I verify Yun Ja Park, M.D.'s license?
NPPES lists Maryland license number D0077605, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Yun Ja Park, M.D. prescribe under Medicare Part D?
In 2024, Yun Ja Park, M.D. had 1,812 Medicare Part D claims for 402 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Yun Ja Park, M.D.'s MIPS final score?
The 2023 MIPS final score is 84.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.