JOHN YONGJOON CHOI
NPI 1225457971
Student in an Organized Health Care Education/Training Program in Rochester, NY
About John Yongjoon Choi NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN YONGJOON CHOI (NPI 1225457971) is an individual student in an organized health care education/training program in Rochester, New York and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of State University Of Ny Upstate Medical University (2014).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
John Yongjoon Choi 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.
Medicare Billing Reassignments
3Medicare enrollment records show John Choi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Falmouth, MA 02540
- Reassigned Medicare billing, Massachusetts enrollment
- 238 clinicians in this Medicare group
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 9
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAWentworth-Douglass Hospital
Acute Care Hospitals · Dover, NHReferred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCHESTER, NY 14642
ROCHESTER, NY 14642
ROCHESTER, NY 14642
ROCHESTER, NY 14642
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 John Choi's NPI number?
The NPI number for John Choi is 1225457971. It was assigned to this individual provider in the NPPES registry on April 9, 2014.
Where is John Choi located?
John Choi practices at 601 Elmwood Ave Box Med, Rochester, NY 14642. The listed phone number is (585) 275-2222.
What is John Choi's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is John Choi enrolled in Medicare?
Yes. John Choi 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 John Choi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Choi reassigns Medicare benefits to 3 organizations: Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, MA), Brigham & Womens Physicians Organization Inc (Boston, MA) and Physicians Of Falmouth Hospital (Falmouth, MA). 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 John Choi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Choi accept?
Health plans from Taro Health list John Choi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Choi affiliated with any hospitals?
According to CMS data, John Choi is affiliated with North Shore Medical Center -, Massachusetts General Hospital, Newton-Wellesley Hospital, Brigham And Women's Hospital and Wentworth-Douglass Hospital.
When was this NPI record last updated?
The NPPES record for John Choi was last updated on April 9, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# John Yongjoon Choi · NPI 1225457971
Student in an Organized Health Care Education/Training Program provider in Rochester, New York. Individual provider, active in the CMS NPPES registry since April 9, 2014.
## Identity
- **NPI:** 1225457971 (Entity type: Individual)
- **Enumerated:** April 9, 2014
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 601 ELMWOOD AVE, BOX MED, Rochester, NY 14642-0001
- **Phone:** (585) 275-2222
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Mass General Brigham Medical Group Suburban Massachusetts Inc (NPI 1538191218, Newton, MA); Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Physicians Of Falmouth Hospital (NPI 1821363698, Falmouth, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of Ny Upstate Medical University, class of 2014
## Record status
- **NPPES last updated:** April 9, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1225457971) · Data from the CMS NPPES public registry.