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GREGORY R D'ONOFRIO M.D.
NPI 1255304796
Internal Medicine - Cardiovascular Disease in Stamford, CT

Active since February 07, 2006PECOS EnrolledAccepts Medicare Assignment
79.07/100
CMS Quality Rating
29 HOSPITAL PLAZA, SUITE 502, STAMFORD, CT 06902(203) 348-7410(203) 961-8488 Get Directions Write a Review

NPPES record last updated: September 7, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 7, 2023, Dec 30, 2016, Dec 11, 2015 (3 updates tracked since 2015).

About Gregory R D'onofrio M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREGORY R D'ONOFRIO M.D. (NPI 1255304796) is an individual cardiovascular disease provider in Stamford, Connecticut, licensed in Connecticut (149608) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (1967).

NPPES Registry Identity

NPI1255304796
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameGREGORY R D'ONOFRIOCredential: M.D.
Location Address29 HOSPITAL PLAZA, SUITE 502Stamford, CT 06902-3602
Mailing Address29 Hospital Plaza, Suite 502Stamford, CT 06902-3602 · (203) 348-7410 · Fax (203) 961-8488
Phone(203) 348-7410
Fax(203) 961-8488
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 1967
Enumeration DateFebruary 7, 2006
Last NPPES UpdateSeptember 7, 20233 updates tracked since enumeration
✔ NPI 1255304796 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in CT · 149608
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
29 HOSPITAL PLAZA, Stamford, CT 06902
Open in Google Maps ↗

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

Gregory R D'onofrio M.d. 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 ID5698890424
PECOS Enrollment IDI20100916000299
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 10

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.
284 services178 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
280 services162 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
55 services51 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
52 services48 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
47 services44 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.
46 services34 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06902 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
Most-billed visit code 99213
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.

79.07/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.19
Promoting Interoperability99
Improvement Activities40
Cost57.89

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.

MARILEE L FREITAS M.D.
Colon & Rectal Surgery
29 HOSPITAL PLAZA, SUITE 604
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 323-8989
JOONUN CHOI MD
Internal Medicine (Cardiovascular Disease)
29 HOSPITAL PLAZA, SUITE 502
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 348-7410
DR. WILLIAM JAMES SYMONS MD
Surgery (Surgical Critical Care)
29 HOSPITAL PLAZA, SUITE 603
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 276-5959
DR. SARAH A MULUKUTLA MD, MPH
Psychiatry & Neurology (Neurology)
29 HOSPITAL PLAZA, SUITE 602
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 276-4464
MARISSA DEFREESE MD
Surgery (Surgical Critical Care)
29 HOSPITAL PLAZA, 6TH FLOOR
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 276-5959
KEVIN D MILLER MD
Surgery
29 HOSPITAL PLAZA, SUITE 603
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 276-5959
DR. SHUAIB A LATIF MD
Internal Medicine (Clinical Cardiac Electrophysiology)
29 HOSPITAL PLAZA, SUITE 501
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 276-2321
JEFFREY A GREEN M.D.
Internal Medicine (Cardiovascular Disease)
29 HOSPITAL PLAZA, SUITE 502
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 348-7410

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 Gregory D'onofrio's NPI number?

The NPI number for Gregory D'onofrio is 1255304796. It was assigned to this individual provider in the NPPES registry on February 7, 2006.

Where is Gregory D'onofrio located?

Gregory D'onofrio practices at 29 Hospital Plaza Suite 502, Stamford, CT 06902. The listed phone number is (203) 348-7410.

What is Gregory D'onofrio's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Gregory D'onofrio enrolled in Medicare?

Yes. Gregory D'onofrio 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.

When was this NPI record last updated?

The NPPES record for Gregory D'onofrio was last updated on September 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.