DR. STACEY MARIE BREEN GREALLY MD
NPI 1821087289
Family Medicine in Sharon, MA
About Dr. Stacey Marie Breen Greally Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STACEY MARIE BREEN GREALLY MD (NPI 1821087289) is an individual family medicine provider in Sharon, Massachusetts, licensed in Massachusetts (216484) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, is affiliated with Melrosewakefield Healthcare, and is a graduate of University Of Massachusetts Medical School (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Stacey Marie Breen Greally 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
2Medicare enrollment records show Stacey Breen Greally reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Needham, MA 02494
- Reassigned Medicare billing, Massachusetts enrollment
- 356 clinicians in this Medicare group
Medford, MA 02155
- Reassigned Medicare billing, Massachusetts enrollment
- 246 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Melrosewakefield Healthcare
Acute Care Hospitals · Melrose, MATufts Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02067 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SHARON, MA 02067
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 Stacey Breen Greally's NPI number?
The NPI number for Stacey Breen Greally is 1821087289. It was assigned to this individual provider in the NPPES registry on October 18, 2005.
Where is Stacey Breen Greally located?
Stacey Breen Greally practices at 93 Pond St Beth Israel Deaconess Health Care- Sharon, Sharon, MA 02067. The listed phone number is (781) 784-9212.
What is Stacey Breen Greally's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Stacey Breen Greally enrolled in Medicare?
Yes. Stacey Breen Greally 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 Stacey Breen Greally's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stacey Breen Greally reassigns Medicare benefits to 2 organizations: Medical Care Of Boston Management Corporation (Needham, MA) and Hallmark Health Medical Associates Inc (Medford, 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 Stacey Breen Greally's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stacey Breen Greally accept?
Health plans from Anthem Blue Cross and Blue Shield list Stacey Breen Greally 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 Stacey Breen Greally affiliated with any hospitals?
According to CMS data, Stacey Breen Greally is affiliated with Melrosewakefield Healthcare and Tufts Medical Center.
When was this NPI record last updated?
The NPPES record for Stacey Breen Greally was last updated on August 10, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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. Stacey Marie Breen Greally, MD · NPI 1821087289
Family Medicine physician in Sharon, Massachusetts. Individual provider, active in the CMS NPPES registry since October 18, 2005.
## Identity
- **NPI:** 1821087289 (Entity type: Individual)
- **Enumerated:** October 18, 2005
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 216484 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 93 POND ST, BETH ISRAEL DEACONESS HEALTH CARE- SHARON, Sharon, MA 02067-2015
- **Phone:** (781) 784-9212 · **Fax:** (781) 784-7671
## 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): Medical Care Of Boston Management Corporation (NPI 1437196359, Needham, MA); Hallmark Health Medical Associates Inc (NPI 1770563900, Medford, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2001
## Record status
- **NPPES last updated:** August 10, 2016
- **Other identifiers:** Medicaid 2076501 (MA); Medicare UPIN I11975; Medicare ID-Type Unspecified A37335 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1821087289) · Data from the CMS NPPES public registry.