DR. GARY S WINZELBERG MD
NPI 1558316869
Internal Medicine - Geriatric Medicine in Burlington, MA
About Dr. Gary S Winzelberg Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GARY S WINZELBERG MD (NPI 1558316869) is an individual geriatric medicine provider in Burlington, Massachusetts, licensed in Massachusetts (160367) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and maintains a secondary practice location in Chapel Hill.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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 and accepts Medicare assignment
Dr. Gary S Winzelberg 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 Reassignment
Medicare enrollment records show Gary Winzelberg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1063447316 (Massachusetts)
- 1,574 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 11
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.
Beth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MALahey Hospital & Medical Center, Burlington
Acute Care Hospitals · Burlington, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01805 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.
BURLINGTON, MA 01805
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 Winzelberg's NPI number?
The NPI number for Gary Winzelberg is 1558316869. It was assigned to this individual provider in the NPPES registry on May 24, 2006.
Where is Gary Winzelberg located?
Gary Winzelberg practices at 41 Mall Rd, Burlington, MA 01805. The listed phone number is (781) 744-8000.
What is Gary Winzelberg's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Gary Winzelberg enrolled in Medicare?
Yes. Gary Winzelberg 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 organization bills Medicare for Gary Winzelberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gary Winzelberg reassigns Medicare benefits to Lahey Clinic, Inc. (Burlington, 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 Gary Winzelberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gary Winzelberg accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Gary Winzelberg 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 Gary Winzelberg affiliated with any hospitals?
According to CMS data, Gary Winzelberg is affiliated with Beth Israel Deaconess Medical Center and Lahey Hospital & Medical Center, Burlington.
When was this NPI record last updated?
The NPPES record for Gary Winzelberg was last updated on November 9, 2021. 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.