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

Justine Sarah Ko, MD

Individual provider Emergency Medicine Physician · NPI 1225569270

Justine Sarah Ko, MD practises Emergency Medicine in New York, New York. Qualified in 2017, 9 years ago. Practices with Weill Medical College of Cornell, a 2,031-clinician group, accepts Medicare assignment and offers telehealth. Licensed in District of Columbia, Illinois and New York.

Years since qualifying
9
Licensed in
DC, IL, NY
In the registry since
2017
Specialties on file
3
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

525 E 68th St # 179
New York, NY 10065-4870
Phone: (212) 746-0282
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sports Medicine (Emergency Medicine) Physician (primary) Taxonomy 207PS0010X · Licence 315580 (NY)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 125.070099 (IL)
Sports Medicine (Emergency Medicine) Physician Taxonomy 207PS0010X · Licence MD049148 (DC)

Record details

NPI number1225569270
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2017
Last updated in NPPESJuly 19, 2022
Certification dateJuly 19, 2022

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesSPORTS MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Weill Medical College Of Cornell — 2031 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients448
Services billed 535 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 $145 1 payment · 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 Weill Medical College of Cornell

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2031 clinicians in the practice; 12 are shown here.

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