AARON CHEN MD
NPI 1831833102
Internal Medicine in New York, NY
About Aaron Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON CHEN MD (NPI 1831833102) is an individual internal medicine provider in New York, New York, licensed in New York (337468) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Aaron 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 Aaron Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10002
- Reassigned Medicare billing, New York enrollment
- 1,615 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 10002 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 10002
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 Aaron Chen's NPI number?
The NPI number for Aaron Chen is 1831833102. It was assigned to this individual provider in the NPPES registry on April 23, 2022.
Where is Aaron Chen located?
Aaron Chen practices at 227 Madison St, New York, NY 10002. The listed phone number is (212) 238-7000.
What is Aaron Chen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Aaron Chen enrolled in Medicare?
Yes. Aaron 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 Aaron Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Chen reassigns Medicare benefits to New York City Health And Hospitals Corporation (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 Aaron 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 Aaron Chen was last updated on July 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Aaron Chen, MD · NPI 1831833102
Internal Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 23, 2022.
## Identity
- **NPI:** 1831833102 (Entity type: Individual)
- **Enumerated:** April 23, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 337468 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 227 MADISON ST, New York, NY 10002-7537
- **Phone:** (212) 238-7000
## 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:** New York City Health And Hospitals Corporation (NPI 1497859573, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 8, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1831833102) · Data from the CMS NPPES public registry.