MARTIN ANDRES MERENZON MD
NPI 1154027878
Neurological Surgery in Riverhead, NY
About Martin Andres Merenzon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARTIN ANDRES MERENZON MD (NPI 1154027878) is an individual neurological surgery provider in Riverhead, New York, licensed in New York (344048) and active in the NPI registry since February 2023. He is enrolled in Medicare PECOS, is affiliated with Peconic Bay Medical Center, and is a graduate of Other (2014).
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
Martin Andres Merenzon 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 Reassignment
Medicare enrollment records show Martin Merenzon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Peconic Bay Medical Center
Acute Care Hospitals · Riverhead, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11901 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.
RIVERHEAD, NY 11901
RIVERHEAD, NY 11901
RIVERHEAD, NY 11901
RIVERHEAD, NY 11901
RIVERHEAD, NY 11901
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 Martin Merenzon's NPI number?
The NPI number for Martin Merenzon is 1154027878. It was assigned to this individual provider in the NPPES registry on February 3, 2023.
Where is Martin Merenzon located?
Martin Merenzon practices at 1 Heroes Way, Riverhead, NY 11901. The listed phone number is (631) 548-6000.
What is Martin Merenzon's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Martin Merenzon enrolled in Medicare?
Yes. Martin Merenzon 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 organization bills Medicare for Martin Merenzon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martin Merenzon reassigns Medicare benefits to North Shore-Lij Medical PC (Great Neck, NY). The 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 Martin Merenzon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Martin Merenzon affiliated with any hospitals?
According to CMS data, Martin Merenzon is affiliated with Peconic Bay Medical Center.
When was this NPI record last updated?
The NPPES record for Martin Merenzon was last updated on June 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.