MIGUEL N RIVERA M.D.
NPI 1831304112
Medical Genetics - Molecular Genetic Pathology in Charlestown, MA
About Miguel N Rivera M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MIGUEL N RIVERA M.D. (NPI 1831304112) is an individual molecular genetic pathology provider in Charlestown, Massachusetts, licensed in Massachusetts (223369) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Harvard Medical School (2001).
NPPES Registry Identity
Specialties & Licenses 2
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
Miguel N Rivera 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
2Medicare enrollment records show Miguel Rivera reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
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
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 3
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MAWentworth-Douglass Hospital
Acute Care Hospitals · Dover, NHOther Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHARLESTOWN, MA 02129
CHARLESTOWN, MA 02129
CHARLESTOWN, MA 02129
CHARLESTOWN, MA 02129
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 Miguel Rivera's NPI number?
The NPI number for Miguel Rivera is 1831304112. It was assigned to this individual provider in the NPPES registry on May 11, 2007.
Where is Miguel Rivera located?
Miguel Rivera practices at 149 13th St Bldg 149, Room 7-101, Charlestown, MA 02129. The listed phone number is (617) 726-5475.
What is Miguel Rivera's specialty?
The primary specialty registered for this NPI is Medical Genetics, specializing in Molecular Genetic Pathology, with taxonomy code 207SM0001X.
Is Miguel Rivera enrolled in Medicare?
Yes. Miguel Rivera 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 Miguel Rivera's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Miguel Rivera reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, 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 Miguel Rivera's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Miguel Rivera affiliated with any hospitals?
According to CMS data, Miguel Rivera is affiliated with Massachusetts General Hospital, Newton-Wellesley Hospital and Wentworth-Douglass Hospital.
When was this NPI record last updated?
The NPPES record for Miguel Rivera was last updated on September 11, 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.
# Miguel N Rivera, M.D. · NPI 1831304112
Molecular Genetic Pathology physician in Charlestown, Massachusetts. Individual provider, active in the CMS NPPES registry since May 11, 2007.
## Identity
- **NPI:** 1831304112 (Entity type: Individual)
- **Enumerated:** May 11, 2007
- **Primary specialty:** Medical Genetics - Molecular Genetic Pathology · taxonomy 207SM0001X
- **State license:** 223369 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 149 13TH ST, BLDG 149, ROOM 7-101, Charlestown, MA 02129-2020
- **Phone:** (617) 726-5475
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2001
## Record status
- **NPPES last updated:** September 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1831304112) · Data from the CMS NPPES public registry.