DR. GARY IRA PORTNAY M.D
NPI 1346289345
Internal Medicine in Andover, MA
About Dr. Gary Ira Portnay M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GARY IRA PORTNAY M.D (NPI 1346289345) is an individual internal medicine provider in Andover, Massachusetts, licensed in Massachusetts (32439) and active in the NPI registry since June 2006. 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. Gary Ira Portnay M.d is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Gary Portnay reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- 410 clinicians in this Medicare group
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- 477 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01810 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.
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 Gary Portnay's NPI number?
The NPI number for Gary Portnay is 1346289345. It was assigned to this individual provider in the NPPES registry on June 5, 2006.
Where is Gary Portnay located?
Gary Portnay practices at 13 Bateson Drive, Andover, MA 01810. The listed phone number is (781) 879-2061.
What is Gary Portnay's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Gary Portnay enrolled in Medicare?
Yes. Gary Portnay is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gary Portnay's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gary Portnay reassigns Medicare benefits to 2 organizations: Beth Israel Lahey Health Primary Care, Inc. (Burlington, MA) and Beth Israel Lahey Health Specialty Care, Inc. (Burlington, MA). 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 Gary Portnay'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 Gary Portnay was last updated on June 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.