DR. RUIJUN CHEN MD
NPI 1619395225
Hospitalist in New York, NY
About Dr. Ruijun Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RUIJUN CHEN MD (NPI 1619395225) is an individual hospitalist provider in New York, New York, licensed in New York (288983) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ruijun Chen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Ruijun Chen 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 10065
- Reassigned Medicare billing, New York enrollment
- 980 clinicians in this Medicare group
Somerset, NJ 08873
- Reassigned Medicare billing, New Jersey enrollment
- 1,557 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10065 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 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.
NEW YORK, NY 10065
NEW YORK, NY 10065
NEW YORK, NY 10065
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 Ruijun Chen's NPI number?
The NPI number for Ruijun Chen is 1619395225. It was assigned to this individual provider in the NPPES registry on April 1, 2014.
Where is Ruijun Chen located?
Ruijun Chen practices at 525 E 68th St, New York, NY 10065. The listed phone number is (212) 746-4071.
What is Ruijun Chen's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Ruijun Chen enrolled in Medicare?
Yes. Ruijun Chen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ruijun Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruijun Chen reassigns Medicare benefits to 2 organizations: Weill Medical College Of Cornell (New York, NY) and Rwjbh Emergency Medicine Associates, LLC (Somerset, 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 Ruijun Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ruijun Chen accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Ruijun Chen 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.
When was this NPI record last updated?
The NPPES record for Ruijun Chen was last updated on March 10, 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.
# Dr. Ruijun Chen, MD · NPI 1619395225
Hospitalist physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 1, 2014.
## Identity
- **NPI:** 1619395225 (Entity type: Individual)
- **Enumerated:** April 1, 2014
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 288983 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 525 E 68TH ST, New York, NY 10065-4870
- **Phone:** (212) 746-4071
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Weill Medical College Of Cornell (NPI 1326088675, New York, NY); Rwjbh Emergency Medicine Associates, LLC (NPI 1912510041, Somerset, NJ) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 10, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1619395225) · Data from the CMS NPPES public registry.