DR. HAROLD R TANENBAUM M.D.
NPI 1689721078
Radiology - Diagnostic Radiology in Manhasset, NY
About Dr. Harold R Tanenbaum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HAROLD R TANENBAUM M.D. (NPI 1689721078) is an individual diagnostic radiology provider in Manhasset, New York, licensed in New York (151547) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Harold R Tanenbaum M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Harold Tanenbaum reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brooklyn, NY 11234
- Reassigned Medicare billing, New York enrollment
- 2 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 37
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11030 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.
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 Harold Tanenbaum's NPI number?
The NPI number for Harold Tanenbaum is 1689721078. It was assigned to this individual provider in the NPPES registry on January 5, 2007.
Where is Harold Tanenbaum located?
Harold Tanenbaum practices at 33 Kensington Cir, Manhasset, NY 11030. The listed phone number is (917) 754-8363.
What is Harold Tanenbaum's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Harold Tanenbaum enrolled in Medicare?
Yes. Harold Tanenbaum is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Harold Tanenbaum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Harold Tanenbaum reassigns Medicare benefits to Marine Park Radiology PC (Brooklyn, 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 Harold Tanenbaum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Harold Tanenbaum was last updated on June 5, 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.