Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Dal Chun, MD

Individual provider Ophthalmology Physician · NPI 1578587135

Dr. Dal Chun, MD practises Ophthalmology in Vienna, Virginia. Graduated from Rutgers New Jersey Medical School in 2000, 26 years ago. Practices with The Retina Group of Washington PLLC, a 78-clinician group and accepts Medicare assignment. Licensed in District of Columbia, Maryland and Virginia.

Years since qualifying
26
Trained at
Rutgers New Jersey Medical School
Licensed in
DC, MD, VA
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

8219 Leesburg Pike Ste 120
Vienna, VA 22182-2625
Phone: (703) 564-4300
Fax: (703) 206-7238
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Retina Specialist (Ophthalmology) Physician (primary) Taxonomy 207WX0107X · Licence 0101232470 (VA)
Ophthalmology Physician Taxonomy 207W00000X · Licence 0101232470 (VA)
Ophthalmology Physician Taxonomy 207W00000X · Licence MD40363 (DC)
Retina Specialist (Ophthalmology) Physician Taxonomy 207WX0107X · Licence D0073940 (MD)

Record details

NPI number1578587135
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 27, 2006
Last updated in NPPESOctober 5, 2026
Certification dateOctober 5, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 2000 (26 years in practice)
Group practice The Retina Group Of Washington Pllc — 78 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Cataract surgery 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,256
Services billed 34,714 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Consulting Fee $8,460 3 payments
Travel and Lodging $854 6 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $799 24 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The Retina Group of Washington PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 78 clinicians in the practice; 12 are shown here.

Other providers in Vienna