MARK MEDICAL CARE NASSAU PLLC
NPI 1609252907
Specialist in Roslyn Heights, NY
About Mark Medical Care Nassau Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK MEDICAL CARE NASSAU PLLC (NPI 1609252907) is a healthcare organization registered as a specialist in Roslyn Heights, New York and active in the NPI registry since August 2015. The organization lists Ron Mark, Md, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
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 Medical Care Nassau 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 Medical Care Nassau 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 Medical Care Nassau PLLC's NPI number?
The NPI number for Mark Medical Care Nassau PLLC is 1609252907. It was assigned to this organization in the NPPES registry on August 10, 2015.
Where is Mark Medical Care Nassau PLLC located?
Mark Medical Care Nassau PLLC is located at 142 Mineola Ave, Roslyn Heights, NY 11577. The listed phone number is (732) 387-2747.
What is Mark Medical Care Nassau PLLC's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Mark Medical Care Nassau PLLC enrolled in Medicare?
Yes. Mark Medical Care Nassau PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mark Medical Care Nassau PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Diagnostic Radiology) reassigns their Medicare billing to Mark Medical Care Nassau 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 Medical Care Nassau PLLC was last updated on August 10, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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 Medical Care Nassau Pllc · NPI 1609252907
Specialist organization in Roslyn Heights, New York. Organization record, active in the CMS NPPES registry since August 10, 2015.
## Identity
- **NPI:** 1609252907 (Entity type: Organization)
- **Enumerated:** August 10, 2015
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Ron Mark, MD
## Practice location
- **Address:** 142 MINEOLA AVE, Roslyn Heights, NY 11577-2056
- **Phone:** (732) 387-2747
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Diagnostic Radiology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 10, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1609252907) · Data from the CMS NPPES public registry.