ALEXA BLAIR KAHN MD
NPI 1952964884
Internal Medicine in Brooklyn, NY
About Alexa Blair Kahn Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXA BLAIR KAHN MD (NPI 1952964884) is an individual internal medicine provider in Brooklyn, New York, licensed in New York (318536) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, is affiliated with Brookdale Hospital Medical Center, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 2
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
Alexa Blair Kahn 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 Alexa Kahn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11212
- Reassigned Medicare billing, New York enrollment
- 782 clinicians in this Medicare group
Brooklyn, NY 11213
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Interfaith Professional Physician Services PC
- 635 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
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.
Brookdale Hospital Medical Center
Acute Care Hospitals · Brooklyn, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11212 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.
BROOKLYN, NY 11212
BROOKLYN, NY 11212
BROOKLYN, NY 11212
BROOKLYN, NY 11212
BROOKLYN, NY 11212
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 Alexa Kahn's NPI number?
The NPI number for Alexa Kahn is 1952964884. It was assigned to this individual provider in the NPPES registry on April 16, 2019.
Where is Alexa Kahn located?
Alexa Kahn practices at 1 Brookdale Plz, Brooklyn, NY 11212. The listed phone number is (718) 240-5000.
What is Alexa Kahn's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alexa Kahn enrolled in Medicare?
Yes. Alexa Kahn 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 Alexa Kahn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexa Kahn reassigns Medicare benefits to 2 organizations: Brookdale Hospital Medical Center (Brooklyn, NY) and Interfaith Professional Physician Services, P.C. (Brooklyn, NY). 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 Alexa Kahn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexa Kahn affiliated with any hospitals?
According to CMS data, Alexa Kahn is affiliated with Brookdale Hospital Medical Center.
When was this NPI record last updated?
The NPPES record for Alexa Kahn was last updated on August 16, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Alexa Blair Kahn, MD · NPI 1952964884
Internal Medicine physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since April 16, 2019.
## Identity
- **NPI:** 1952964884 (Entity type: Individual)
- **Enumerated:** April 16, 2019
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 318536 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1 BROOKDALE PLZ, Brooklyn, NY 11212-3139
- **Phone:** (718) 240-5000
## 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): Brookdale Hospital Medical Center (NPI 1720028772, Brooklyn, NY); Interfaith Professional Physician Services, P.C. (NPI 1457643991, Brooklyn, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** August 16, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1952964884) · Data from the CMS NPPES public registry.