MEGAN KATHERINE MERCER MD
NPI 1356873756
Radiology - Diagnostic Radiology in Boston, MA
About Megan Katherine Mercer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MEGAN KATHERINE MERCER MD (NPI 1356873756) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Massachusetts (1017144) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with Eskenazi Health, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Megan Katherine Mercer 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 Reassignments
4Medicare enrollment records show Megan Mercer reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
South Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 419 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 279 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Eskenazi Health
Acute Care Hospitals · Indianapolis, INIndiana University Health
Acute Care Hospitals · Indianapolis, INIndiana University Health North Hospital
Acute Care Hospitals · Carmel, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 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.
BOSTON, MA 02115
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 Megan Mercer's NPI number?
The NPI number for Megan Mercer is 1356873756. It was assigned to this individual provider in the NPPES registry on April 3, 2017.
Where is Megan Mercer located?
Megan Mercer practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.
What is Megan Mercer's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Megan Mercer enrolled in Medicare?
Yes. Megan Mercer 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 Megan Mercer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Megan Mercer reassigns Medicare benefits to 4 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA), Harbor Medical Associates, Inc. (South Weymouth, MA), Iu Health Medical Group, LLC (Indianapolis, IN) and Indiana University Radiology Associates, Inc. (Indianapolis, IN). 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 Megan Mercer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Megan Mercer accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource and Cigna Healthcare list Megan Mercer 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 Megan Mercer affiliated with any hospitals?
According to CMS data, Megan Mercer is affiliated with Eskenazi Health, Indiana University Health and Indiana University Health North Hospital.
When was this NPI record last updated?
The NPPES record for Megan Mercer was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.
# Megan Katherine Mercer, MD · NPI 1356873756
Diagnostic Radiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 3, 2017.
## Identity
- **NPI:** 1356873756 (Entity type: Individual)
- **Enumerated:** April 3, 2017
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 1017144 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 FRANCIS ST, Boston, MA 02115-6106
- **Phone:** (617) 732-5500
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Harbor Medical Associates, Inc. (NPI 1124079561, South Weymouth, MA); Iu Health Medical Group, LLC (NPI 1326893777, Indianapolis, IN); Indiana University Radiology Associates, Inc. (NPI 1336192665, Indianapolis, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** September 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1356873756) · Data from the CMS NPPES public registry.