JOSHUA KERSTEIN MD
NPI 1689632523
Internal Medicine - Cardiovascular Disease in Brooklyn, NY
About Joshua Kerstein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSHUA KERSTEIN MD (NPI 1689632523) is an individual cardiovascular disease provider in Brooklyn, New York, licensed in New York (185949-1) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of State University Of New York Downstate Medical Center (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Joshua Kerstein 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 Joshua Kerstein reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 1,177 clinicians in this Medicare group
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 61 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 13
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lenox Hill Hospital
Acute Care Hospitals · New York, NYMaimonides Medical Center
Acute Care Hospitals · Brooklyn, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11219 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.
Reported Quality Measures
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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROOKLYN, NY 11219
BROOKLYN, NY 11219
BROOKLYN, NY 11219
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 Joshua Kerstein's NPI number?
The NPI number for Joshua Kerstein is 1689632523. It was assigned to this individual provider in the NPPES registry on May 2, 2006.
Where is Joshua Kerstein located?
Joshua Kerstein practices at 4802 Tenth Ave Attn: Cardiology, Brooklyn, NY 11219. The listed phone number is (718) 283-8614.
What is Joshua Kerstein's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Joshua Kerstein enrolled in Medicare?
Yes. Joshua Kerstein 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 Joshua Kerstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joshua Kerstein reassigns Medicare benefits to 2 organizations: Maimonides Faculty Practice Plan (Brooklyn, NY) and Maimonides Cardiology Fpp (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 Joshua Kerstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Joshua Kerstein affiliated with any hospitals?
According to CMS data, Joshua Kerstein is affiliated with Lenox Hill Hospital and Maimonides Medical Center.
When was this NPI record last updated?
The NPPES record for Joshua Kerstein was last updated on December 17, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.