Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cynthia A Ennis, D.O.

Clinical Cardiac Electrophysiology Physician in Southbridge, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1881631489

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Cynthia A Ennis

Credential D.O.

Sex Female

Practice address 100 South St, Southbridge, MA, 01550

Phone (508) 764-6041

Fax (508) 764-6318

Enumeration date Jun 1, 2006

Last updated in NPPES Mar 5, 2026

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 226634 (MA) Secondary

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 226634 (MA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
110082449A	Medicaid	MA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Cynthia Ennis practice?

The practice location on file with NPPES is in Southbridge, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Cynthia Ennis?

The National Provider Identifier (NPI) for Cynthia Ennis is 1881631489, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-05.