DR. HENRY KAR HANG SIU M.D.
NPI 1871777607
Internal Medicine - Interventional Cardiology in New York, NY

Q: What is Henry Siu's NPI number?

The NPI number for Henry Siu is 1871777607. It was assigned to this individual provider in the NPPES registry on December 28, 2007.

Q: What is Henry Siu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Henry Siu was last updated on June 30, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since December 28, 2007PECOS EnrolledAccepts Medicare Assignment

139 CENTRE ST STE 307, NEW YORK, NY 10013(212) 334-3507(646) 365-0469 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 11, 2019, Dec 10, 2015 (2 updates tracked since 2015).

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About Dr. Henry Kar Hang Siu M.d. NPPES

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

DR. HENRY KAR HANG SIU M.D. (NPI 1871777607) is an individual interventional cardiology provider in New York, New York, licensed in New York (296712) and active in the NPI registry since December 2007. He is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of State University Of New York Downstate Medical Center (2007).

NPPES Registry Identity

NPI1871777607

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. HENRY KAR HANG SIUCredential: M.D.

Location Address139 CENTRE ST STE 307New York, NY 10013

Mailing Address139 Centre St Ste 307New York, NY 10013-4554 · (212) 334-3507 · Fax (646) 365-0469

Phone(212) 334-3507

Fax(646) 365-0469

Sole ProprietorNo

Medical School CMSState University Of New York Downstate Medical CenterGraduated 2007

Enumeration DateDecember 28, 2007

Last NPPES UpdateJune 30, 20262 updates tracked since enumeration

NPPES CertifiedJune 30, 2026

✔ NPI 1871777607 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

Licenses✔ Licensed in NY · 296712✔ Licensed in PA · MD444073

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal MedicineTaxonomy 207R00000X · License 296712 (NY), 048870 (CT), MD444073 (PA)

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 296712 (NY), MT198672 (PA)

Also ListedHospitalistTaxonomy 208M00000X · License 048870 (CT)

139 CENTRE ST STE 307, New York, NY 10013

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Other Identifiers 2

Other12351923245NY · Group Npi

Other13-3857638NY · Tax Id

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

Dr. Henry Kar Hang Siu 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 ID840487278

PECOS Enrollment IDI20190702000451

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 16

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.

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.

213 services117 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.

127 services89 patients

Injection, regadenoson, 0.1 mg J2785

Regadenoson injection, 0.1 mg, is a medication used to help visualize the heart during a stress test. It works by increasing blood flow in the arteries of the heart. It's injected into a vein and is generally well-tolerated.

84 services21 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.

80 services77 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

43 services39 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

37 services37 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

34 services33 patients

Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries A9555

Rubidium Rb-82 is a radioactive drug used in a PET scan to help visualize the heart. It helps detect areas with poor blood flow, aiding in diagnosing heart conditions. The dose is up to 60 millicuries per study.

34 services17 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.

33 services30 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

30 services30 patients

Technetium tc-99m sestamibi, diagnostic, per study dose A9500

Technetium Tc-99m Sestamibi is a diagnostic test used to create images of your heart or breast tissues. It involves a safe radioactive substance injection that helps doctors to detect any abnormalities or changes in these tissues.

26 services13 patients

Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts 93978

This procedure involves using sound waves to create images of your aorta, vena cava, groin vessels, or bypass grafts. It helps to detect abnormalities or blockages, ensuring your blood flows smoothly. It's painless and non-invasive.

20 services19 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.

20 services20 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

19 services18 patients

Nuclear medicine studies of blood flow in heart muscle at rest and with stress 78492

Nuclear medicine studies help visualize blood flow in your heart at rest and during stress. A small amount of radioactive substance is injected, which your heart absorbs. Images are then taken to assess your heart's health and function.

17 services17 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.

13 services13 patients

Hospital Affiliations CMS Care Compare

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

Lenox Hill Hospital

Acute Care Hospitals · New York, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330119

Location100 East 77th StreetNew York, NY 10021 · New York County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10013 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

$150.24 typical visit price

range $65.69 – $198.19

Typical copayment $37.56 (range $16.42 – $49.54)

Most-billed visit code 99204

Established Patient

$114.88 typical visit price

range $21.20 – $160.66

Typical copayment $28.72 (range $5.30 – $40.16)

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.

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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHERI C TANG N.P.

Nurse Practitioner (Adult Health)

139 CENTRE ST STE 307
NEW YORK, NY 10013

New York County (212) 334-3507

MR. WEN JIAN LI RN

Registered Nurse

139 CENTRE ST STE 307
NEW YORK, NY 10013

New York County (646) 653-0131

ARSALAN REHMANI MD

Internal Medicine (Interventional Cardiology)

139 CENTRE ST STE 307
NEW YORK, NY 10013

New York County (212) 334-3507

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 Henry Siu's NPI number?

The NPI number for Henry Siu is 1871777607. It was assigned to this individual provider in the NPPES registry on December 28, 2007.

Where is Henry Siu located?

Henry Siu practices at 139 Centre St Ste 307, New York, NY 10013. The listed phone number is (212) 334-3507.

What is Henry Siu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Henry Siu enrolled in Medicare?

Yes. Henry Siu 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.

Is Henry Siu affiliated with any hospitals?

According to CMS data, Henry Siu is affiliated with Lenox Hill Hospital.

When was this NPI record last updated?

The NPPES record for Henry Siu was last updated on June 30, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.