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DR. JOAN MIHYUN CHI M.D.
NPI 1417335993
Radiology - Neuroradiology in New York, NY

Active since May 15, 2015PECOS EnrolledAccepts Medicare Assignment
87.72/100
CMS Quality Rating
162 W 56TH ST APT 1003, NEW YORK, NY 10019(718) 670-5000 Get Directions Write a Review

NPPES record last updated: December 4, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Joan Mihyun Chi M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOAN MIHYUN CHI M.D. (NPI 1417335993) is an individual neuroradiology provider in New York, New York, licensed in New York (75774) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS and is a graduate of State University Of New York At Buffalo School Of Medicine (2015).

NPPES Registry Identity

NPI1417335993
Entity TypeIndividualFemale
Primary Taxonomy2085N0700X
Provider Legal NameDR. JOAN MIHYUN CHICredential: M.D.
Location Address162 W 56TH ST APT 1003New York, NY 10019-3865
Mailing Address162 W 56th St Apt 1003New York, NY 10019-3865
Phone(718) 670-5000
Sole ProprietorYes
Medical School CMSState University Of New York At Buffalo School Of MedicineGraduated 2015
Enumeration DateMay 15, 2015
Last NPPES UpdateDecember 4, 2021
NPPES CertifiedDecember 4, 2021
✔ NPI 1417335993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · NeuroradiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085N0700X
License✔ Licensed in NY · 75774
Definition
A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.
162 W 56TH ST APT 1003, New York, NY 10019
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Joan Mihyun Chi M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4981948031
PECOS Enrollment IDI20201224000575
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Joan Chi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lenox Hill Radiology & Medical Imaging Associates, PC
1.2 mi
Diagnostic Radiology
61 E 77TH ST
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 302 clinicians in this Medicare group
NPI 1821036807 (212) 772-3111
Hudson Valley Radiology Associates PLLC
27 mi
Diagnostic Radiology
18 SQUADRON BLVD
New City, NY 10956
  • Reassigned Medicare billing, New York enrollment
  • 210 clinicians in this Medicare group
NPI 1174574115 (845) 634-9729
Delaware Radiology Associates PA
116 mi
Diagnostic Radiology
6 OMEGA DR BLDG L
Newark, DE 19713
  • Reassigned Medicare billing, New York enrollment
  • 25 clinicians in this Medicare group
NPI 1740706175 (302) 738-9300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, gadoterate meglumine, 0.1 ml A9575
Gadoterate meglumine is a contrast agent used in MRI scans to help visualize certain areas of your body more clearly. It's injected into your bloodstream, typically through a vein in your arm, and helps doctors get more detailed images.
34,135 services192 patients
Mri scan of brain before and after contrast 70553
An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.
198 services196 patients
Mri scan of lower spinal canal without contrast 72148
An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.
69 services69 patients
Mri scan of brain without contrast 70551
An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.
53 services53 patients
Ct scan of face without contrast 70486
A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.
38 services37 patients
X-ray of lower and sacral spine, 2-3 views 72100
An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.
22 services22 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.72/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75
Promoting Interoperability100
Improvement Activities40

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joan Chi's NPI number?

The NPI number for Joan Chi is 1417335993. It was assigned to this individual provider in the NPPES registry on May 15, 2015.

Where is Joan Chi located?

Joan Chi practices at 162 W 56th St Apt 1003, New York, NY 10019. The listed phone number is (718) 670-5000.

What is Joan Chi's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Is Joan Chi enrolled in Medicare?

Yes. Joan Chi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Joan Chi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joan Chi reassigns Medicare benefits to 3 organizations: Lenox Hill Radiology & Medical Imaging Associates, PC (New York, NY), Hudson Valley Radiology Associates PLLC (New City, NY) and Delaware Radiology Associates PA (Newark, DE). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joan Chi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joan Chi was last updated on December 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.