DR. CHILEMBWE M MASON MD
NPI 1366465932
Emergency Medicine in Bronx, NY
About Dr. Chilembwe M Mason Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHILEMBWE M MASON MD (NPI 1366465932) is an individual emergency medicine provider in Bronx, New York, licensed in New York (239642) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Montefiore New Rochelle Hospital, and is a graduate of University Of Maryland School Of Medicine (2003).
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
Dr. Chilembwe M Mason 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
4Medicare enrollment records show Chilembwe Mason reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bronx, NY 10457
- Reassigned Medicare billing, New York enrollment
- 795 clinicians in this Medicare group
White Plains, NY 10601
- Reassigned Medicare billing, New York enrollment
- 479 clinicians in this Medicare group
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- 268 clinicians in this Medicare group
Bridgeport, CT 06610
- Reassigned Medicare billing, Connecticut enrollment
- 219 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Montefiore New Rochelle Hospital
Acute Care Hospitals · New Rochelle, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10457 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.
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.
BRONX, NY 10457
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 Chilembwe Mason's NPI number?
The NPI number for Chilembwe Mason is 1366465932. It was assigned to this individual provider in the NPPES registry on July 25, 2006.
Where is Chilembwe Mason located?
Chilembwe Mason practices at 1650 Grand Concourse, Bronx, NY 10457. The listed phone number is (718) 960-1443.
What is Chilembwe Mason's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Chilembwe Mason enrolled in Medicare?
Yes. Chilembwe Mason 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 Chilembwe Mason's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chilembwe Mason reassigns Medicare benefits to 4 organizations: Bronxcare Health System (Bronx, NY), East Post Road Medical Services PC (White Plains, NY), Greenwich Hospital (Greenwich, CT) and Bridgeport Hospital (Bridgeport, CT). 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 Chilembwe Mason's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Chilembwe Mason affiliated with any hospitals?
According to CMS data, Chilembwe Mason is affiliated with Montefiore New Rochelle Hospital.
When was this NPI record last updated?
The NPPES record for Chilembwe Mason was last updated on June 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Chilembwe M Mason, MD · NPI 1366465932
Emergency Medicine physician in Bronx, New York. Individual provider, active in the CMS NPPES registry since July 25, 2006.
## Identity
- **NPI:** 1366465932 (Entity type: Individual)
- **Enumerated:** July 25, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 239642 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1650 GRAND CONCOURSE, Bronx, NY 10457-7606
- **Phone:** (718) 960-1443
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Bronxcare Health System (NPI 1245390855, Bronx, NY); East Post Road Medical Services PC (NPI 1841767274, White Plains, NY); Greenwich Hospital (NPI 1609846088, Greenwich, CT); Bridgeport Hospital (NPI 1649260845, Bridgeport, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 2003
## Record status
- **NPPES last updated:** June 18, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1366465932) · Data from the CMS NPPES public registry.