DR. CHARLES MARC EKSTEIN M.D.
NPI 1689930141
Orthopaedic Surgery - Hand Surgery in Fair Lawn, NJ
About Dr. Charles Marc Ekstein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHARLES MARC EKSTEIN M.D. (NPI 1689930141) is an individual hand surgery provider in Fair Lawn, New Jersey, licensed in New Jersey (25MA10954400) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Chilton Medical Center, and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Accepted Insurance
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
Dr. Charles Marc Ekstein M.d. 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 Reassignments
4Medicare enrollment records show Charles Ekstein reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cliffside Park, NJ 07010
- Reassigned Medicare billing, New Jersey enrollment
Bronx, NY 10451
- Reassigned Medicare billing, New York enrollment
- 971 clinicians in this Medicare group
Brooklyn, NY 11203
- Reassigned Medicare billing, New York enrollment
- 291 clinicians in this Medicare group
Berkeley Heights, NJ 07922
- Reassigned Medicare billing, New Jersey enrollment
- 1,184 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 5
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Chilton Medical Center
Acute Care Hospitals · Pompton Plains, NJHackensack Meridian Health, Mountainside Medical
Acute Care Hospitals · Montclair, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07410 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FAIR LAWN, NJ 07410
FAIR LAWN, NJ 07410
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 Charles Ekstein's NPI number?
The NPI number for Charles Ekstein is 1689930141. It was assigned to this individual provider in the NPPES registry on April 9, 2012.
Where is Charles Ekstein located?
Charles Ekstein practices at 17-17 Route 208, Fair Lawn, NJ 07410. The listed phone number is (201) 345-7557.
What is Charles Ekstein's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Hand Surgery, with taxonomy code 207XS0106X.
Is Charles Ekstein enrolled in Medicare?
Yes. Charles Ekstein 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 organizations bill Medicare for Charles Ekstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Ekstein reassigns Medicare benefits to 4 organizations: Hand & Trauma Institute (Cliffside Park, NJ), Downtown Bronx Medical Associates PC (Bronx, NY), University Physicians Of Brooklyn, Inc (Brooklyn, NY) and Summit Medical Group PA (Berkeley Heights, NJ). Each 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 Charles Ekstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Charles Ekstein accept?
Health plans from Oscar Health list Charles Ekstein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Charles Ekstein affiliated with any hospitals?
According to CMS data, Charles Ekstein is affiliated with Chilton Medical Center and Hackensack Meridian Health, Mountainside Medical.
When was this NPI record last updated?
The NPPES record for Charles Ekstein was last updated on February 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.