MARK R KAHN MD PLLC
NPI 1346756665
Internal Medicine - Cardiovascular Disease in Syosset, NY
About Mark R Kahn Md Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK R KAHN MD PLLC (NPI 1346756665) is a healthcare organization registered as a cardiovascular disease in Syosset, New York and active in the NPI registry since December 2017. The organization lists Mark Robert Kahn, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mark R Kahn Md Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Mark R Kahn MD PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Mark R Kahn MD PLLC's NPI number?
The NPI number for Mark R Kahn MD PLLC is 1346756665. It was assigned to this organization in the NPPES registry on December 21, 2017.
Where is Mark R Kahn MD PLLC located?
Mark R Kahn MD PLLC is located at 175 Jericho Tpke Ste 204, Syosset, NY 11791. The listed phone number is (516) 496-4141.
What is Mark R Kahn MD PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Mark R Kahn MD PLLC enrolled in Medicare?
Yes. Mark R Kahn MD PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mark R Kahn MD PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Mark R Kahn MD PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mark R Kahn MD PLLC was last updated on December 21, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Mark R Kahn Md Pllc · NPI 1346756665
Cardiovascular Disease organization in Syosset, New York. Organization record, active in the CMS NPPES registry since December 21, 2017.
## Identity
- **NPI:** 1346756665 (Entity type: Organization)
- **Enumerated:** December 21, 2017
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **Organization subpart:** No
- **Authorized official:** Mark Kahn, OWNER
## Practice location
- **Address:** 175 JERICHO TPKE STE 204, Syosset, NY 11791-4538
- **Phone:** (516) 496-4141 · **Fax:** (516) 496-4393
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Cardiovascular Disease (Cardiology)) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 21, 2017
- **Other identifiers:** Other 265075 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1346756665) · Data from the CMS NPPES public registry.