SADIE ELISSEOU MD
NPI 1699090902
Internal Medicine in Providence, RI
About Sadie Elisseou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SADIE ELISSEOU MD (NPI 1699090902) is an individual internal medicine provider in Providence, Rhode Island, licensed in Connecticut (051748) and active in the NPI registry since March 2010. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Warren Alpert Medical School Of Brown University (2010).
NPPES Registry Identity
Specialties & Licenses
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
Sadie Elisseou 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 Sadie Elisseou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 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.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02908 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.
PROVIDENCE, RI 02908
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 Sadie Elisseou's NPI number?
The NPI number for Sadie Elisseou is 1699090902. It was assigned to this individual provider in the NPPES registry on March 30, 2010.
Where is Sadie Elisseou located?
Sadie Elisseou practices at 830 Chalkstone Ave, Providence, RI 02908. The listed phone number is (401) 273-7100.
What is Sadie Elisseou's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sadie Elisseou enrolled in Medicare?
Yes. Sadie Elisseou 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 Sadie Elisseou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sadie Elisseou reassigns Medicare benefits to Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, 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 Sadie Elisseou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sadie Elisseou accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Sadie Elisseou 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 Sadie Elisseou affiliated with any hospitals?
According to CMS data, Sadie Elisseou is affiliated with Massachusetts General Hospital, Newton-Wellesley Hospital and Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Sadie Elisseou was last updated on May 18, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Sadie Elisseou, MD · NPI 1699090902
Internal Medicine physician in Providence, Rhode Island. Individual provider, active in the CMS NPPES registry since March 30, 2010.
## Identity
- **NPI:** 1699090902 (Entity type: Individual)
- **Enumerated:** March 30, 2010
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 051748 (Connecticut)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 830 CHALKSTONE AVE, Providence, RI 02908-4734
- **Phone:** (401) 273-7100
## 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:** Mass General Brigham Medical Group Suburban Massachusetts Inc (NPI 1538191218, Newton, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Warren Alpert Medical School Of Brown University, class of 2010
## Record status
- **NPPES last updated:** May 18, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1699090902) · Data from the CMS NPPES public registry.