Yun Park, M.D.
NPI 1821263294 · Ophthalmology Physician · Rockville, MD
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yun Park, M.D. is a Ophthalmology Physician provider in Rockville, MD (NPI 1821263294).
Provider details
- NPI number
- 1821263294
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 25MA09145300 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,379 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 687 | $45 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 643 | $141 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 611 | $100 |
| Photography of the Retina92250 | 491 | $41 |
| Imaging of Optic Nerve92133 | 437 | $39 |
| Exam of Visual Field With Extended Testing92083 | 392 | $71 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 469 | 139 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 145 | 50 |
| Brimonidine Tartrate/Timololbrand: Combigan | 137 | 37 |
| Bimatoprostbrand: Lumigan | 123 | 37 |
| Cyclosporinebrand: Restasis | 112 | 56 |
| Dorzolamide Hcl | 78 | 26 |
| Timolol Maleate | 61 | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,649 across 73 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-04-28
- Last updated
- 2014-11-20
Frequently asked questions
- What is Yun Park's NPI number?
- Yun Park's National Provider Identifier (NPI) is 1821263294, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yun Park's specialty?
- Yun Park is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Yun Park located?
- Yun Park's practice location on file with NPPES is 11140 Rockville Pike, Rockville, MD 20852-3106.
- What is Yun Park's phone number?
- The practice phone number listed in the NPPES registry for Yun Park is (301) 881-5888.
- Does Yun Park accept Medicare?
- Yun Park is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yun Park's NPI active?
- Yes — Yun Park's NPI (1821263294) is active in the NPPES registry as of the last update on 2014-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.