CYNTHIA A ENNIS D.O.
NPI 1881631489
Internal Medicine - Clinical Cardiac Electrophysiology in Southbridge, MA

Q: 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.

Q: 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.

Q: 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 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.

Active since June 01, 2006PECOS EnrolledAccepts Medicare Assignment

97.02/100

CMS Quality Rating

100 SOUTH ST, SOUTHBRIDGE, MA 01550(508) 764-6041(508) 764-6318 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 5, 2026, Oct 31, 2020, Oct 23, 2019 (3 updates tracked since 2019).

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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 Healthalliance Hospitals, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1881631489

Entity TypeIndividualFemale

Primary Taxonomy207RC0001X

Provider Legal NameCYNTHIA A ENNISCredential: D.O.

Location Address100 SOUTH STSouthbridge, MA 01550-4051

Mailing AddressPo Box 415348Boston, MA 02241-5348

Phone(508) 764-6041

Fax(508) 764-6318

Sole ProprietorNo

Medical School CMSOtherGraduated 2002

Enumeration DateJune 1, 2006

Last NPPES UpdateMarch 5, 20263 updates tracked since enumeration

NPPES CertifiedMarch 5, 2026

✔ NPI 1881631489 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RC0001X

License✔ Licensed in MA · 226634

Definition

A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 226634 (MA)

100 SOUTH ST, Southbridge, MA 01550

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Other Identifiers 1

Medicaid110082449AMA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID1052466364

PECOS Enrollment IDI20090909000503

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

161 services132 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

127 services123 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

119 services112 patients

Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring, transmission and review and report by health care professional 93272

An Electrocardiogram (ECG) is a test that records the electrical activity of your heart. For up to 30 days, a device will continuously monitor your heart's rhythm, noting any symptoms. The data is sent to a healthcare professional who reviews it and provides a report on your heart health.

105 services105 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

64 services60 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

52 services26 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

39 services39 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

An Electrocardiogram (ECG) is a test that checks your heart's activity. The 2-day continuous ECG records your heart's rhythm non-stop for 48 hours. It helps to detect irregularities that may not occur during a shorter test. A healthcare professional will review the results to identify any issues.

32 services32 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

30 services30 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

24 services24 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

19 services19 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

14 services14 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

12 services12 patients

Insertion of pacemaker and upper and lower heart chamber electrode 33208

A pacemaker insertion is a procedure where a small device, called a pacemaker, is implanted under your skin. This device uses electrical pulses to prompt the heart to beat at a normal rate. Electrodes are placed in the upper and lower chambers of your heart to help regulate your heartbeat.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Umass Memorial Healthalliance Hospitals

Acute Care Hospitals · Leominster, MA

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220001

Location60 Hospital RoadLeominster, MA 01453 · Worcester County

Emergency services

Umass Memorial Health - Harrington Hospital

Acute Care Hospitals · Southbridge, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220019

Location100 South StreetSouthbridge, MA 01550 · Worcester County

Emergency services

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220163

Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County

Emergency services Birthing friendly

Metrowest Medical Center

Acute Care Hospitals · Framingham, MA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220175

Location115 Lincoln StreetFramingham, MA 01701 · Middlesex County

Emergency services Birthing friendly

St Vincent Hospital

Acute Care Hospitals · Worcester, MA

2/5 CMS rating

OwnershipProprietary

CMS Certification Number220176

Location123 Summer StreetWorcester, MA 01608 · Worcester County

Emergency services Birthing friendly

Physician 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.

New Patient

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$103.48 typical visit price

range $19.11 – $144.84

Typical copayment $25.87 (range $4.77 – $36.21)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

97.02/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

78.09

Promoting Interoperability

100

Improvement Activities

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.

EDWARD YE PA-C

Physician Assistant (Medical)

100 SOUTH ST
SOUTHBRIDGE, MA 01550

Worcester County (508) 765-9771

DR. KRISHNAVENI SIRIGADDI MD

Internal Medicine

100 SOUTH ST
SOUTHBRIDGE, MA 01550

Worcester County (508) 765-9771

DR. CARL JOHN VANDERPUTTEN DO

Emergency Medicine

100 SOUTH ST, HARRINGTON MEMORIAL HOSPITAL
SOUTHBRIDGE, MA 01550

Worcester County (508) 765-9771

DR. MARSHA KAY FEARING MD, MPH, MMSC.

Pediatrics

100 SOUTH ST, STE 102
SOUTHBRIDGE, MA 01550

Worcester County (508) 765-7860

MR. DOMINIC IDOKO MA

Counselor (Mental Health)

100 SOUTH ST
SOUTHBRIDGE, MA 01550

Worcester County (508) 765-9771

STEPHANIE RUIZ-GONZALEZ CRNA

Nurse Anesthetist, Certified Registered

100 SOUTH ST
SOUTHBRIDGE, MA 01550

Worcester County (508) 909-7799

MARY E FRISELLA MD

Internal Medicine (Cardiovascular Disease)

100 SOUTH ST
SOUTHBRIDGE, MA 01550

Worcester County (508) 764-6041

TAMMY JOHNSON

Counselor (Mental Health)

100 SOUTH ST
SOUTHBRIDGE, MA 01550

Worcester County (508) 765-9771

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.

What insurance does Cynthia Ennis accept?

Health plans from Anthem Blue Cross and Blue Shield 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 Healthalliance Hospitals, Umass Memorial Health - Harrington Hospital, Umass Memorial Medical Center/University Campus, Metrowest Medical Center and St Vincent Hospital.

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 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.