DR. MARK PROCTOR M.D.
NPI 1306910518
Specialist in Boston, MA
About Dr. Mark Proctor M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK PROCTOR M.D. (NPI 1306910518) is an individual specialist in Boston, Massachusetts and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 (PECOS)
Dr. Mark Proctor M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Proctor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 34 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.
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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Mark Proctor's NPI number?
The NPI number for Mark Proctor is 1306910518. It was assigned to this individual provider in the NPPES registry on November 20, 2006.
Where is Mark Proctor located?
Mark Proctor practices at 300 Longwood Ave Department Of Neurosurgery, Bader 3, Boston, MA 02115. The listed phone number is (617) 355-2403.
What is Mark Proctor's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Mark Proctor enrolled in Medicare?
Yes. Mark Proctor is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Proctor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Proctor reassigns Medicare benefits to Boston Pediatric Neurosurgical Foundation, Inc. (Boston, MA). 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 Mark Proctor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Proctor accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Mark Proctor 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.
When was this NPI record last updated?
The NPPES record for Mark Proctor was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.