DR. JEFFREY NAKHJAVAN D.O.
NPI 1578676136
Internal Medicine in North Babylon, NY
About Dr. Jeffrey Nakhjavan D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFFREY NAKHJAVAN D.O. (NPI 1578676136) is an individual internal medicine provider in North Babylon, New York, licensed in New York (216089) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through November 22, 2026, and is affiliated with North Shore University Hospital.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Jeffrey Nakhjavan D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jeffrey Nakhjavan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
North Babylon, NY 11703
- Reassigned Medicare billing, New York enrollment
- 3 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.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 33D1034025
Jeffrey M Nakhjavan Do · West Babylon, NYAreas of Expertise CMS Part B claims 58
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore University Hospital
Acute Care Hospitals · Manhasset, NYGood Samaritan Hospital Medical Center
Acute Care Hospitals · West Islip, NYSuny/Stony Brook University Hospital
Acute Care Hospitals · Stony Brook, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11703 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 14
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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Jeffrey Nakhjavan's NPI number?
The NPI number for Jeffrey Nakhjavan is 1578676136. It was assigned to this individual provider in the NPPES registry on August 17, 2006.
Where is Jeffrey Nakhjavan located?
Jeffrey Nakhjavan practices at 1400 Deer Park Ave, North Babylon, NY 11703. The listed phone number is (631) 242-1181.
What is Jeffrey Nakhjavan's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jeffrey Nakhjavan enrolled in Medicare?
Yes. Jeffrey Nakhjavan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jeffrey Nakhjavan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Nakhjavan reassigns Medicare benefits to Jeffrey M Nakhjavan Do PC (North Babylon, 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 Jeffrey Nakhjavan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Does Jeffrey Nakhjavan hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 33D1034025) is associated with this NPI, valid through November 22, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
Is Jeffrey Nakhjavan affiliated with any hospitals?
According to CMS data, Jeffrey Nakhjavan is affiliated with North Shore University Hospital, Good Samaritan Hospital Medical Center and Suny/Stony Brook University Hospital.
When was this NPI record last updated?
The NPPES record for Jeffrey Nakhjavan was last updated on October 1, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.