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

Dr. Caroline Mei Shan Ong, MD, MHS

Individual provider Cardiovascular Disease Physician · NPI 1184036436

Dr. Caroline Mei Shan Ong, MD, MHS is registered under Cardiovascular Disease (Cardiology) in New York, New York. Graduated from Yale University School of Medicine in 2014, 12 years ago. Practices with North Shore-Lij Medical PC, a 6,350-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
12
Trained at
Yale University School of Medicine
Licensed in
NY
In the registry since
2014
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

550 1st Ave
New York, NY 10016-6402
Phone: (212) 263-5506
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 505 Parnassus Ave Rm 987, San Francisco, CA 94143-2204 — (415) 476-1528

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 289896 (NY)

Record details

NPI number1184036436
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MHS
Sole proprietorNo
NPI enumeratedMay 21, 2014
Last updated in NPPESJuly 21, 2022
Certification dateMay 12, 2020

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice North Shore-Lij Medical Pc — 6350 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients556
Services billed 839 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

Travel and Lodging $1,524 6 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $272 5 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 North Shore-Lij Medical PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 6350 clinicians in the practice; 12 are shown here.

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