DR. MARK ANTHONY GENDREAU M.D.
NPI 1184666315
Emergency Medicine in Burlington, MA
About Dr. Mark Anthony Gendreau M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK ANTHONY GENDREAU M.D. (NPI 1184666315) is an individual emergency medicine provider in Burlington, Massachusetts, licensed in Massachusetts (153777) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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 Anthony Gendreau M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Gendreau 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
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 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BURLINGTON, MA 01805
BURLINGTON, MA 01805
BURLINGTON, MA 01805
BURLINGTON, MA 01805
BURLINGTON, MA 01805
BURLINGTON, MA 01805
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 Mark Gendreau's NPI number?
The NPI number for Mark Gendreau is 1184666315. It was assigned to this individual provider in the NPPES registry on June 12, 2006.
Where is Mark Gendreau located?
Mark Gendreau practices at Lahey Hospital & Medical Ctr 41 Mall Rd, Burlington, MA 01805. The listed phone number is (978) 538-4600.
What is Mark Gendreau's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Gendreau enrolled in Medicare?
Yes. Mark Gendreau is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Gendreau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Gendreau 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 Mark Gendreau'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 Mark Gendreau was last updated on October 23, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Mark Anthony Gendreau, M.D. · NPI 1184666315
Emergency Medicine physician in Burlington, Massachusetts. Individual provider, active in the CMS NPPES registry since June 12, 2006.
## Identity
- **NPI:** 1184666315 (Entity type: Individual)
- **Enumerated:** June 12, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 153777 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** LAHEY HOSPITAL & MEDICAL CTR, 41 MALL RD, Burlington, MA 01805-0001
- **Phone:** (978) 538-4600 · **Fax:** (978) 538-4707
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Lahey Clinic, Inc. (NPI 1538194980, Burlington, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 23, 2014
- **Other identifiers:** Medicare PIN A2314501 (MA); Medicaid 110003958A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1184666315) · Data from the CMS NPPES public registry.