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Dr. Joan Mihyun Chi, MD
NPI1417335993PAC ID4981948031
- Medicare services, 2024
- 34,541
- Medicare patients, 2024
- 442
- Publications
- 5
- MIPS score, 2024
- 81
- Affiliated sites
- 4
- Practice address
- 61 E 77th St., New York, NY 10075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lenox Hill Radiology - East 77th Street Radiology
Mammography / Breast Imaging Center · New York, New York
Find Dr. Chi's professional email, personal email and mobile number
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Dr. Joan Mihyun Chi is a neuroradiologist in New York, New York
Dr. Chi practices at Lenox Hill Radiology - East 77th Street Radiology in New York, New York.
Dr. Chi's NPI, 1417335993, was assigned on May 15, 2015. Dr. Chi graduated from State University of New York at Buffalo School of Medicine in 2015. Dr. Chi holds New York license 75774.
NPI and contact details
- NPI
- 1417335993NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981948031
- NPI enumeration date
- May 15, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joan Mihyun Chi practices at Lenox Hill Radiology - East 77th Street Radiology in New York, New York
Dr. Chi's primary practice is Lenox Hill Radiology - East 77th Street Radiology, at 61 E 77th St., New York, NY 10075.
- Lenox Hill Radiology - East 77th Street Radiology61 E 77th St., New York, NY 10075
Source: Dmand AI Affiliation Data
Dr. Joan Mihyun Chi is affiliated with 4 sites of care and 3 medical groups
Dr. Chi's primary practice is Lenox Hill Radiology - East 77th Street Radiology in New York, New York. The medical group on file is Lenox Hill Radiology. Dmand AI also links Dr. Chi to 3 more group practices and clinics and 2 medical groups, each named with a free account. Dr. Chi's employer is on file too: a breast imaging center.
Lenox Hill Radiology - East 77th Street RadiologyPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joan Mihyun Chi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chi practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lenox Hill Radiology - East 77th Street Radiology | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joan Mihyun Chi is one of 148 neuroradiologists in New York
Neuroradiology is Dr. Chi's primary specialty in the NPI Registry, under taxonomy code 2085N0700X. Dr. Chi is licensed in New York.
Specialties and state licenses
- Neuroradiology, New YorkPrimary
Neuroradiologists near Dr. Chi
Counts of neuroradiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Joan Mihyun Chi billed Medicare for 34,541 services in 2024
CMS data shows 34,541 Medicare services from Dr. Chi across 8 procedure codes in 2024, for 442 Medicare patients. Medicare paid $85,519 for them. Every service was in an office.
Medicare services, 202434,541
Medicare patients442
Paid by Medicare$85,519
Procedure codes8
Dr. Chi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 32,2652024: 34,1356%
- Imaging
- 2023: 1,3722024: 40670%
Dr. Chi compared with the New York median for neuroradiologists, 2024
- Dr. Chi
- New York median
- Medicare services
- 34,541vs 3,9188.8 times
- Medicare patients
- 442vs 97154% below
Medians across 138 neuroradiologists in New York with Dmand AI profiles that report each measure.
Dr. Chi's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chi and other neuroradiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joan Mihyun Chi treated 442 Medicare patients in 2024, average age 70
CMS counts 442 Medicare patients who saw Dr. Chi in 2024. The largest group is 65 to 74, with 214 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 26% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chi's median patient age at 43, with 58% women.
Medicare patients, 2024442
Average age70
Average risk score1.02
Also on Medicaid26%
Dr. Chi's Medicare patients by age, 2024
Dr. Chi's Medicare patients by sex, 2024
- Women27362%
- Men16938%
Chronic conditions among Dr. Chi's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis55%
- Diabetes37%
- Anxiety24%
- Mood disorders24%
- Ischemic heart disease23%
- Osteoporosis21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women58%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joan Mihyun Chi scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Chi for performance year 2024, reported as part of a group. Dr. Chi accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Chi's MIPS scores, performance year 2024
- 81of 100Final score
- 62.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Joan Mihyun Chi has 5 publications on record
Dmand AI links 5 papers to Dr. Chi, published from 2013 to 2021. 2019 was the busiest year, with 3. The most frequent topics are Magnetic Resonance Imaging and Tomography, X-Ray Computed. Dr. Chi's most frequent co-authors are Cynthia B. Aranow, MD, Barak Friedman, MD and Gregory Michael Grimaldi, MD.
Papers5
Years published2013 to 2021
Dr. Chi's papers by year, 2013 to 2021
Topics Dr. Chi writes about most
- Magnetic Resonance Imaging
- Tomography, X-Ray Computed
Dr. Chi's most frequent co-authors
- Cynthia B. Aranow, MD1 shared paper
- Barak Friedman, MD1 shared paper
- Gregory Michael Grimaldi, MD1 shared paper
Recent publications by Dr. Chi
Curr Probl Diagn Radiol
CalciumCoronary AngiographyCoronary Vessels
AJNR Am J Neuroradiol
Blood-Brain BarrierCapillary PermeabilityHippocampus
AngioplastyCarotid Artery, CommonCarotid Stenosis
See who Dr. Chi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chi works with, so you can find a warm path to the right neuroradiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joan Mihyun Chi graduated from State University of New York at Buffalo School of Medicine
Dr. Chi graduated from State University of New York at Buffalo School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joan Mihyun Chi's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Joan Mihyun Chi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Joan Mihyun Chi's NPI number?
Dr. Joan Mihyun Chi's NPI number is 1417335993. It was assigned on May 15, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Joan Mihyun Chi?
Dr. Joan Mihyun Chi is a neuroradiologist in New York, New York. The primary specialty in the NPI Registry is Neuroradiology Physician (taxonomy code 2085N0700X).
Where does Dr. Joan Mihyun Chi practice?
Dr. Chi practices at 61 E 77th St., New York, NY 10075. Dr. Chi's primary practice is Lenox Hill Radiology - East 77th Street Radiology in New York, New York. Dmand AI also links Dr. Chi to 3 group practices and clinics and 2 medical groups.
What is Dr. Joan Mihyun Chi's medical license number?
Dr. Chi holds New York license 75774.
What medical group is Dr. Joan Mihyun Chi part of?
Dr. Chi is linked to Lenox Hill Radiology. Dmand AI links Dr. Chi to 2 more medical groups.
Does Dr. Joan Mihyun Chi accept Medicare?
Yes. CMS data shows Dr. Chi billed Medicare for 34,541 services in 2024, and Dr. Chi accepts Medicare assignment.
What is Dr. Joan Mihyun Chi's MIPS score?
Dr. Chi's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Dr. Joan Mihyun Chi see?
CMS counts 442 Medicare patients who saw Dr. Chi in 2024, with an average age of 70.
What services does Dr. Joan Mihyun Chi bill to Medicare?
In 2024, Dr. Chi's most billed Medicare services were medical supplies or transport (A9575), diagnostic imaging (70553) and diagnostic imaging (72148).
Where did Dr. Joan Mihyun Chi go to medical school?
Dr. Chi graduated from State University of New York at Buffalo School of Medicine in 2015.
Show 3 more questionsShow fewer questions
How long has Dr. Joan Mihyun Chi been practicing?
Dr. Chi graduated from medical school in 2015, 11 years ago.
Does Dr. Joan Mihyun Chi do research?
Dmand AI links 5 publications to Dr. Chi, published from 2013 to 2021.
Who does Dr. Joan Mihyun Chi publish with?
Dr. Chi's most frequent co-authors are Cynthia B. Aranow, MD (1 shared paper), Barak Friedman, MD (1 shared paper) and Gregory Michael Grimaldi, MD (1 shared paper).
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