BONNIE Y CHIEN MD
NPI 1770964280
Orthopaedic Surgery in New York, NY
About Bonnie Y Chien Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BONNIE Y CHIEN MD (NPI 1770964280) is an individual orthopaedic surgery provider in New York, New York, licensed in New York (308333) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Stanford University School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses
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
Bonnie Y Chien Md 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
2Medicare enrollment records show Bonnie Chien reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
Englewood, NJ 07631
- Reassigned Medicare billing, New Jersey enrollment
- 149 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 4
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Referred Medical Equipment & Supplies CMS DME claims
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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Bonnie Chien's NPI number?
The NPI number for Bonnie Chien is 1770964280. It was assigned to this individual provider in the NPPES registry on June 11, 2015.
Where is Bonnie Chien located?
Bonnie Chien practices at 622 W 168th St Ph 111130, New York, NY 10032. The listed phone number is (212) 305-4587.
What is Bonnie Chien's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Bonnie Chien enrolled in Medicare?
Yes. Bonnie Chien 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 Bonnie Chien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Bonnie Chien reassigns Medicare benefits to 2 organizations: Trustees Of Columbia University In The City Of New York (New York, NY) and Columbia Doctors Of New Jersey, P. C. (Englewood, NJ). 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 Bonnie Chien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Bonnie Chien affiliated with any hospitals?
According to CMS data, Bonnie Chien is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Bonnie Chien was last updated on March 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Bonnie Y Chien, MD · NPI 1770964280
Orthopaedic Surgery physician in New York, New York. Individual provider, active in the CMS NPPES registry since June 11, 2015.
## Identity
- **NPI:** 1770964280 (Entity type: Individual)
- **Enumerated:** June 11, 2015
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 308333 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 622 W 168TH ST PH 111130, New York, NY 10032-3720
- **Phone:** (212) 305-4587
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Trustees Of Columbia University In The City Of New York (NPI 1477068971, New York, NY); Columbia Doctors Of New Jersey, P. C. (NPI 1952224370, Englewood, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Stanford University School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** March 14, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1770964280) · Data from the CMS NPPES public registry.