MARK WILLIAM BYRNE M.D.
NPI 1710152467
Emergency Medicine in Salem, MA
About Mark William Byrne M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK WILLIAM BYRNE M.D. (NPI 1710152467) is an individual emergency medicine provider in Salem, Massachusetts, licensed in Massachusetts (229091) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Mark William Byrne M.d. 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
6Medicare enrollment records show Mark Byrne reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Salem, MA 01970
- Reassigned Medicare billing, Massachusetts enrollment
- 994 clinicians in this Medicare group
East Boston, MA 02128
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: East Boston Neighborhood Health Center Corp
- 456 clinicians in this Medicare group
East Boston, MA 02128
- Reassigned Medicare billing, Massachusetts enrollment
- 577 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Ayer, MA 01432
- Reassigned Medicare billing, Massachusetts enrollment
- 290 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 4
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01970 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SALEM, MA 01970
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 Byrne's NPI number?
The NPI number for Mark Byrne is 1710152467. It was assigned to this individual provider in the NPPES registry on April 24, 2008.
Where is Mark Byrne located?
Mark Byrne practices at 81 Highland Ave Salem Hospital, Department Of Emergency Medicine, Salem, MA 01970. The listed phone number is (978) 354-3517.
What is Mark Byrne's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Byrne enrolled in Medicare?
Yes. Mark Byrne 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 Mark Byrne's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Byrne reassigns Medicare benefits to 6 organizations: Mass General Brigham Medical Group Northern Massachusetts Inc (Salem, MA), Neighborhealth Corporation (East Boston, MA), Internal Medical Associates-Ebnhc (East Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and 1 more organization, listed in the Medicare section above. 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 Mark Byrne's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Byrne affiliated with any hospitals?
According to CMS data, Mark Byrne is affiliated with North Shore Medical Center -.
When was this NPI record last updated?
The NPPES record for Mark Byrne was last updated on December 20, 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.
# Mark William Byrne, M.D. · NPI 1710152467
Emergency Medicine physician in Salem, Massachusetts. Individual provider, active in the CMS NPPES registry since April 24, 2008.
## Identity
- **NPI:** 1710152467 (Entity type: Individual)
- **Enumerated:** April 24, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 229091 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 81 HIGHLAND AVE, SALEM HOSPITAL, DEPARTMENT OF EMERGENCY MEDICINE, Salem, MA 01970-2714
- **Phone:** (978) 354-3517 · **Fax:** (978) 740-4731
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Mass General Brigham Medical Group Northern Massachusetts Inc (NPI 1588606123, Salem, MA); Neighborhealth Corporation (NPI 1316994411, East Boston, MA); Internal Medical Associates-Ebnhc (NPI 1558481879, East Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2006
## Record status
- **NPPES last updated:** December 20, 2021
- **Other identifiers:** Medicaid 110072263A (MA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1710152467) · Data from the CMS NPPES public registry.