Cynthia A. Ennis, D.O.
Clinical Cardiac Electrophysiology Physician · Southbridge, MA
Cynthia A. Ennis, D.O. is a clinical cardiac electrophysiology physician with a practice address in Southbridge, Massachusetts, and NPI 1881631489, issued on Jun 1, 2006. Check the license (Massachusetts 226634, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Cynthia A. Ennis
- Credential
- D.O.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- 226634 MA
Self-reported in NPPES; status is on the state search - Practice location
- 100 South St, Southbridge, MA 01550
- Phone
- (508) 764-6041
- Enumerated
- Jun 1, 2006
- Record last updated
- Mar 5, 2026
- Fax
- (508) 764-6318
- Medicaid ID
- 110082449A MA
- Medicare enrollment
- Enrolled (PECOS I20090909000503); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 116 in Massachusetts → Look up another NPI →
Also registered at 100 South St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dianne Aguirre, PAPhysician Assistant1659874121
- Joseph Amegah, M SMental Health Counselor1972625358
- Cheryl Amodeo, RNCase Management Registered Nurse1821134172
- Alan Anderson, C.R.N.A.Certified Registered Nurse Anesthetist1891713160
- Mary Banda, MDInternal Medicine Physician1265481311
- Janet Baum, M.D.Diagnostic Radiology Physician1053392944
Verify Cynthia A. Ennis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 226634Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
955 Medicare Part D claims for 224 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Eliquis222 claims
- Metoprolol Succinate164 claims
- Metoprolol Tartrate70 claims
- Diltiazem 24hr Er (Cd)68 claims
- Flecainide Acetate57 claims
- Atorvastatin Calcium37 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 97 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $67.50
3 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Heart Center OF Metrowest, Inc.Framingham, MA
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cynthia A. Ennis among 116 clinical cardiac electrophysiology physician records in Massachusetts
Cynthia A. Ennis, D.O. is one of 116 clinical cardiac electrophysiology physician records with a practice address in Massachusetts. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 56% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2002 · median 2002 among the 93 with a school on file
- Record last updated2026 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in Massachusetts
There are 116 clinical cardiac electrophysiology physician records in Massachusetts.
All 116 in Massachusetts → Every provider in Southbridge → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Sanjeev Goyal, MDWorcester, MA 016081629044102
- Douglas Laidlaw, M.D.Worcester, MA 016081124167911
- Nikhil Shah, M.D.Worcester, MA 016081467830406
- Clifford Browning, M.D.Worcester, MA 016551922085273
- Herman Carneiro, MDWorcester, MA 016551003278359
- John Donahue, MDWorcester, MA 016551598797797
- Kevin Floyd, M.D.Worcester, MA 016551699721894
- David McManus, M.D.Worcester, MA 016551427082189
Common questions
What is Cynthia A. Ennis, D.O.'s NPI number?
Cynthia A. Ennis, D.O.'s National Provider Identifier (NPI) is 1881631489, issued on Jun 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia A. Ennis, D.O. located?
The NPPES record lists a practice address at 100 South St, Southbridge, MA, 01550. Phone: (508) 764-6041. Providers update this record themselves, so call before visiting.
How can I verify Cynthia A. Ennis, D.O.'s license?
NPPES lists Massachusetts license number 226634, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cynthia A. Ennis, D.O. prescribe under Medicare Part D?
In 2024, Cynthia A. Ennis, D.O. had 955 Medicare Part D claims for 224 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
What is Cynthia A. Ennis, D.O.'s MIPS final score?
The 2023 MIPS final score is 97 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.