ALEXANDER SHON CHEN MD
NPI 1912609181
Internal Medicine in New York, NY
About Alexander Shon Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER SHON CHEN MD (NPI 1912609181) is an individual internal medicine provider in New York, New York, licensed in New York (343217-01) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2023).
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
Alexander Shon Chen 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 Reassignment
Medicare enrollment records show Alexander Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 980 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10022 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 10022
NEW YORK, NY 10022
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 Alexander Chen's NPI number?
The NPI number for Alexander Chen is 1912609181. It was assigned to this individual provider in the NPPES registry on March 20, 2023.
Where is Alexander Chen located?
Alexander Chen practices at 575 Lexington Ave, New York, NY 10022. The listed phone number is (646) 962-6828.
What is Alexander Chen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alexander Chen enrolled in Medicare?
Yes. Alexander Chen 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 organization bills Medicare for Alexander Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Chen reassigns Medicare benefits to Weill Medical College Of Cornell (New York, NY). The 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 Alexander Chen'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 Alexander Chen was last updated on June 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Alexander Shon Chen, MD · NPI 1912609181
Internal Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 20, 2023.
## Identity
- **NPI:** 1912609181 (Entity type: Individual)
- **Enumerated:** March 20, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 343217-01 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 575 LEXINGTON AVE, New York, NY 10022-6102
- **Phone:** (646) 962-6828
## 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:** Weill Medical College Of Cornell (NPI 1134243652, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2023
## Record status
- **NPPES last updated:** June 26, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1912609181) · Data from the CMS NPPES public registry.