CAMERON W BRENNAN MD
NPI 1689659963
Neurological Surgery in New York, NY
About Cameron W Brennan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAMERON W BRENNAN MD (NPI 1689659963) is an individual neurological surgery provider in New York, New York, licensed in New York (210534-1) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of Js Weill Medical College, Cornell University (1994).
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 and accepts Medicare assignment
Cameron W Brennan 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 Reassignments
3Medicare enrollment records show Cameron Brennan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 452 clinicians in this Medicare group
Montvale, NJ 07645
- Reassigned Medicare billing, New Jersey enrollment
- 401 clinicians in this Medicare group
Middletown, NJ 07748
- Reassigned Medicare billing, New Jersey enrollment
- 464 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 8
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 10021 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.
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.
NEW YORK, NY 10021
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 Cameron Brennan's NPI number?
The NPI number for Cameron Brennan is 1689659963. It was assigned to this individual provider in the NPPES registry on December 9, 2005.
Where is Cameron Brennan located?
Cameron Brennan practices at 1275 York Ave, New York, NY 10021. The listed phone number is (212) 639-2000.
What is Cameron Brennan's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Cameron Brennan enrolled in Medicare?
Yes. Cameron Brennan 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 Cameron Brennan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cameron Brennan reassigns Medicare benefits to 3 organizations: Mskcc Surgery Group (New York, NY), Msk Bergen (Montvale, NJ) and Msk Monmouth (Middletown, 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 Cameron Brennan'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 Cameron Brennan was last updated on April 7, 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.
# Cameron W Brennan, MD · NPI 1689659963
Neurological Surgery physician in New York, New York. Individual provider, active in the CMS NPPES registry since December 9, 2005.
## Identity
- **NPI:** 1689659963 (Entity type: Individual)
- **Enumerated:** December 9, 2005
- **Primary specialty:** Neurological Surgery · taxonomy 207T00000X
- **State license:** 210534-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1275 YORK AVE, New York, NY 10021-6007
- **Phone:** (212) 639-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Mskcc Surgery Group (NPI 1699766261, New York, NY); Msk Bergen (NPI 1558814657, Montvale, NJ); Msk Monmouth (NPI 1922459163, Middletown, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Js Weill Medical College, Cornell University, class of 1994
## Record status
- **NPPES last updated:** April 7, 2015
- **Other identifiers:** Medicare UPIN I22704
---
Source: [NPI Profile](https://npiprofile.com/npi/1689659963) · Data from the CMS NPPES public registry.