Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Lok Yun Sung, MD

Individual provider Diagnostic Radiology Physician · NPI 1720221369

Dr. Lok Yun Sung, MD practises Interventional Radiology in Stony Brook, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 2008, 18 years ago. Practices with Stony Brook Radiology, University Faculty Practice Corporation, a 59-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
18
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NY
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

101 Nicolls Rd Dept OF Radiology Hsc Level 4 Rm 120
Stony Brook, NY 11794-8460
Phone: (631) 444-7955
Fax: (631) 444-7538
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Vascular & Interventional Radiology Physician (primary) Taxonomy 2085R0204X · Licence 268768 (NY)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 268768 (NY)

Record details

NPI number1720221369
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 13, 2009
Last updated in NPPESMarch 25, 2025
Certification dateMarch 25, 2025

Medicare enrollment

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

Medicare specialtyINTERVENTIONAL RADIOLOGY
Also practisesDIAGNOSTIC RADIOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Stony Brook Radiology, University Faculty Practice Corporation — 59 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients1,100
Services billed 2,132 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Food and Beverage $757 17 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 Stony Brook Radiology, University Faculty Practice Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 59 clinicians in the practice; 12 are shown here.

Other providers in Stony Brook