GEORGE ALEXIADES STAMATIADES MD
NPI 1902300122
Internal Medicine - Endocrinology, Diabetes & Metabolism in Boston, MA
About George Alexiades Stamatiades Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GEORGE ALEXIADES STAMATIADES MD (NPI 1902300122) is an individual endocrinology, diabetes & metabolism provider in Boston, Massachusetts, licensed in Massachusetts (1015395) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 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
George Alexiades Stamatiades 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 Reassignment
Medicare enrollment records show George Stamatiades reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 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 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 4
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, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 George Stamatiades's NPI number?
The NPI number for George Stamatiades is 1902300122. It was assigned to this individual provider in the NPPES registry on March 21, 2018.
Where is George Stamatiades located?
George Stamatiades practices at 15 Parkman St, Boston, MA 02114. The listed phone number is (617) 726-8720.
What is George Stamatiades's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is George Stamatiades enrolled in Medicare?
Yes. George Stamatiades 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 organization bills Medicare for George Stamatiades's services?
According to the CMS Revalidation Reassignment List (October 2026 release), George Stamatiades reassigns Medicare benefits to Brigham & Womens Physicians Organization Inc (Boston, 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 George Stamatiades's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does George Stamatiades accept?
Health plans from Anthem Blue Cross and Blue Shield list George Stamatiades 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 George Stamatiades affiliated with any hospitals?
According to CMS data, George Stamatiades is affiliated with Massachusetts General Hospital, Newton-Wellesley Hospital, Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for George Stamatiades was last updated on June 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# George Alexiades Stamatiades, MD · NPI 1902300122
Endocrinology, Diabetes & Metabolism physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 21, 2018.
## Identity
- **NPI:** 1902300122 (Entity type: Individual)
- **Enumerated:** March 21, 2018
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 1015395 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 15 PARKMAN ST, Boston, MA 02114-3117
- **Phone:** (617) 726-8720
## 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:** Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** June 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1902300122) · Data from the CMS NPPES public registry.