CYNTHIA A ENNIS D.O.
NPI 1881631489
Internal Medicine - Clinical Cardiac Electrophysiology in Southbridge, MA
About Cynthia A Ennis D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CYNTHIA A ENNIS D.O. (NPI 1881631489) is an individual clinical cardiac electrophysiology provider in Southbridge, Massachusetts, licensed in Massachusetts (226634) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Health - Harrington Hospital, and maintains a secondary practice location in Worcester.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
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
Cynthia A Ennis D.o. 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 Cynthia Ennis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oxford, MA 01540
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Framingham, MA 01702
- Reassigned Medicare billing, Massachusetts enrollment
- 29 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 14
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.
Umass Memorial Health - Harrington Hospital
Acute Care Hospitals · Southbridge, MAUmass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAMetrowest Medical Center
Acute Care Hospitals · Framingham, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01550 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.
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.
SOUTHBRIDGE, MA 01550
SOUTHBRIDGE, MA 01550
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 Cynthia Ennis's NPI number?
The NPI number for Cynthia Ennis is 1881631489. It was assigned to this individual provider in the NPPES registry on June 1, 2006.
Where is Cynthia Ennis located?
Cynthia Ennis practices at 100 South St, Southbridge, MA 01550. The listed phone number is (508) 764-6041.
What is Cynthia Ennis's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.
Is Cynthia Ennis enrolled in Medicare?
Yes. Cynthia Ennis 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 Cynthia Ennis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Ennis reassigns Medicare benefits to 2 organizations: Umass Memorial Medical Group, Inc. (Oxford, MA) and Heart Center Of Metrowest Inc (Framingham, 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 Cynthia Ennis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Cynthia Ennis accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Cynthia Ennis 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 Cynthia Ennis affiliated with any hospitals?
According to CMS data, Cynthia Ennis is affiliated with Umass Memorial Health - Harrington Hospital, Umass Memorial Medical Center/University Campus and Metrowest Medical Center.
When was this NPI record last updated?
The NPPES record for Cynthia Ennis was last updated on March 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Cynthia A Ennis, D.O. · NPI 1881631489
Clinical Cardiac Electrophysiology physician in Southbridge, Massachusetts. Individual provider, active in the CMS NPPES registry since June 1, 2006.
## Identity
- **NPI:** 1881631489 (Entity type: Individual)
- **Enumerated:** June 1, 2006
- **Primary specialty:** Internal Medicine - Clinical Cardiac Electrophysiology · taxonomy 207RC0001X
- **State license:** 226634 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 SOUTH ST, Southbridge, MA 01550-4051
- **Phone:** (508) 764-6041 · **Fax:** (508) 764-6318
## 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): Umass Memorial Medical Group, Inc. (NPI 1982381018, Oxford, MA); Heart Center Of Metrowest Inc (NPI 1598756132, Framingham, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2002
## Record status
- **NPPES last updated:** March 5, 2026
- **Other identifiers:** Medicaid 110082449A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1881631489) · Data from the CMS NPPES public registry.