JOONUN CHOI MD
NPI 1053583914
Internal Medicine - Cardiovascular Disease in Stamford, CT

Q: What is Joonun Choi's NPI number?

The NPI number for Joonun Choi is 1053583914. It was assigned to this individual provider in the NPPES registry on March 31, 2008. The provider is also known as Chris Choi MD.

Q: What is Joonun Choi's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Joonun Choi was last updated on December 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.

Active since March 31, 2008PECOS 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: December 30, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Joonun Choi Md NPPES

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

JOONUN CHOI MD (NPI 1053583914) is an individual cardiovascular disease provider in Stamford, Connecticut, licensed in Connecticut (046302) and active in the NPI registry since March 2008. He is enrolled in Medicare PECOS and is a graduate of New York Medical College (2001).

NPPES Registry Identity

NPI1053583914

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameJOONUN CHOICredential: MD

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 CMSNew York Medical CollegeGraduated 2001

Enumeration DateMarch 31, 2008

Last NPPES UpdateDecember 30, 2016

✔ NPI 1053583914 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 · 046302

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

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Other Names 1

Other Name (5)Chris Choi Md

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

Joonun Choi Md 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 ID8022188028

PECOS Enrollment IDI20080603000287

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 17

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.

496 services427 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.

369 services361 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

264 services96 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.

224 services144 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.

130 services122 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

116 services101 patients

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

87 services75 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

85 services75 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

82 services82 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

82 services82 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.

81 services78 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

33 services33 patients

Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report 93351

This procedure involves using ultrasound technology to create images of your heart while you rest, exercise, or undergo drug-induced stress. An ECG continuously monitors your heart's electrical activity. It helps doctors assess heart health and function.

27 services27 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.

22 services22 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

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

15 services15 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

12 services12 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

Quality

73.19

Promoting Interoperability

Improvement Activities

Cost

57.89

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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

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

GREGORY R D'ONOFRIO M.D.

Internal Medicine (Cardiovascular Disease)

29 HOSPITAL PLAZA, SUITE 502
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 348-7410

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

DR. MICHAEL IRWIN EBRIGHT M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

29 HOSPITAL PLAZA, SUITE 505
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 276-4404

SARAH E BUCKINGHAM MD

Psychiatry & Neurology (Neurology)

29 HOSPITAL PLAZA, SUITE 602
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 276-4464

MICHAEL F PARRY MD

Internal Medicine (Infectious Disease)

29 HOSPITAL PLAZA, SUITE 605
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 353-1427

MS. KATHRYN CREAGH

Nurse Practitioner (Adult Health)

29 HOSPITAL PLAZA, SUITE 502
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 348-7410

DR. WAYNE HENRY MILLER MD

Internal Medicine (Cardiovascular Disease)

29 HOSPITAL PLAZA, SUITE 502
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 348-7410

DR. LOUISE D RESOR M.D.

Psychiatry & Neurology (Neurology)

29 HOSPITAL PLAZA, SUITE 602
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 276-4464

DR. EVELYN JANE CUSACK M.D.

Internal Medicine (Cardiovascular Disease)

29 HOSPITAL PLAZA, SUITE 502
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 348-7410

CSABA GAJDOS MD

Surgery (Surgical Oncology)

29 HOSPITAL PLAZA, SUITE 603
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 276-5959

DR. CHARLES E LITTLEJOHN MD

Colon & Rectal Surgery

29 HOSPITAL PLAZA, SUITE 604
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 323-8989

EDWIN F RICHTER III MD

Physical Medicine & Rehabilitation

29 HOSPITAL PLAZA, STE 495
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 316-0610

DR. SHAHZAD ZAFAR M.D.

Colon & Rectal Surgery

29 HOSPITAL PLAZA, SUITE 604
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 323-8989

EVANGELOS DEMETRIOS XISTRIS M.D.

Psychiatry & Neurology (Neurology)

29 HOSPITAL PLAZA, SUITE 602
STAMFORD, CT 06902

Western Connecticut Planning Region (203) 276-4464

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 Joonun Choi's NPI number?

The NPI number for Joonun Choi is 1053583914. It was assigned to this individual provider in the NPPES registry on March 31, 2008. The provider is also known as Chris Choi MD.

Where is Joonun Choi located?

Joonun Choi practices at 29 Hospital Plaza Suite 502, Stamford, CT 06902. The listed phone number is (203) 348-7410.

What is Joonun Choi's specialty?

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

Is Joonun Choi enrolled in Medicare?

Yes. Joonun Choi 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 Joonun Choi was last updated on December 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.