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

Dr. Joan Mihyun CHI, MD

Individual provider Neuroradiology Physician · NPI 1417335993

Dr. Joan Mihyun CHI, MD practises Diagnostic Radiology in New York, New York. Graduated from State University of New York at Buffalo School of Medicine in 2015, 11 years ago. Practices with Lenox Hill Radiology and Medical Imaging Associates PC, a 243-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
11
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
NY
In the registry since
2015
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

162 W 56th St Apt 1003
New York, NY 10019-3865
Phone: (718) 670-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neuroradiology Physician (primary) Taxonomy 2085N0700X · Licence 75774 (NY)

Record details

NPI number1417335993
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 15, 2015
Last updated in NPPESDecember 4, 2021
Certification dateDecember 4, 2021

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Lenox Hill Radiology And Medical Imaging Associates Pc — 243 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients442
Services billed 35,530 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Colleagues at Lenox Hill Radiology and Medical Imaging Associates PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 243 clinicians in the practice; 12 are shown here.

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