Individual provider Active NPI

Henry Kar Hang Siu, M.D.

  • Interventional Cardiology Physician
  • New York, NY
National Provider Identifier
1871777607
Registry record updated Jun 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Interventional Cardiology PhysicianTaxonomy code 207RI0011X
License
296712 Issued in NY
Practice address
139 Centre St Ste 307
New York, NY 10013
Phone
(212) 334-3507
Fax
(646) 365-0469
NPI assigned
Dec 28, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 30, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 8

Specialty (taxonomy)CodeLicenseStatePrimary
Cardiovascular Disease Physician 207RC0000X 296712 NY
Interventional Cardiology Physician 207RI0011X MD444073 PA
Internal Medicine Physician 207R00000X 296712 NY
Interventional Cardiology Physician 207RI0011X 296712 NY Primary
Internal Medicine Physician 207R00000X 048870 CT
Cardiovascular Disease Physician 207RC0000X MT198672 PA
Hospitalist Physician 208M00000X 048870 CT
Internal Medicine Physician 207R00000X MD444073 PA

Addresses

Primary practice location

139 Centre St Ste 307
New York, NY 10013

Mailing address

139 Centre St Ste 307
New York, NY 10013-4554
Phone (212) 334-3507

Other identifiers 2

IdentifierTypeStateIssuer
12351923245OtherNYGROUP NPI
13-3857638OtherNYTAX ID

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NJ, NY2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20150904000516 NJ Practitioner - Interventional Cardiology 0840487278
I20190702000451 NY Practitioner - Interventional CardiologyPractitioner - Cardiovascular Disease (Cardiology)Practitioner - Internal Medicine 0840487278 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Interventional CardiologyAlso: Cardiovascular Disease (Cardiology), Internal Medicine
Education
State University of New York Downstate Medical Center, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
North Shore-Lij Medical PCGroup PAC ID 3375701568, 6,374 clinicians
Chinatown Cardiology, P.C.Group PAC ID 6002706223, 8 clinicians
Ahava Medical and Rehabilitation Center, LLCGroup PAC ID 1557416997, 150 clinicians

Practice addresses (Care Compare)

130 E 77TH St
New York, NY 10075-1851
Phone (212) 434-6400

139 Centre St
Suite 307
New York, NY 10013-4554
Phone (212) 334-3507

16 Sumner PL
Brooklyn, NY 11206-4110
Phone 71895188002102

Hospital & facility affiliations

  • Lenox Hill Hospital Hospital, New York, NY, CCN 330119

Procedures performed for Medicare patients

ProcedureNumber of procedures
Coronary angioplasty and stenting1-10
Varicose vein removal1-10
Leg revascularization (restoring blood flow)23

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MT198672PAMDCardiovascular Disease Physician
048870CTMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Ahava Medical and Rehabilitation Center, LLC CurrentSince Aug 1, 2019 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Aug 12, 2019 Accepting new patients
Icahn School of Medicine at Mount Sinai Cardiovascular Disease CurrentSince Aug 12, 2019 Accepting new patients
North Shore Medical Group of the Mount Sinai School of Medicine Internal Medicine CurrentSince Jun 15, 2020 Accepting new patients
North Shore-Lij Medical PC Internal Medicine CurrentSince Nov 6, 2021 Accepting new patients
Chinatown Cardiology, P.C. Cardiovascular Disease CurrentSince Aug 1, 2019 Accepting new patients
North Shore Medical Group of the Mount Sinai School of Medicine Internal Medicine CurrentSince Jun 15, 2020 Accepting new patients

Locations

16 Sumner Pl
Brooklyn, NY 11206
Phone (718) 336-9500

2555 Nostrand Ave
Brooklyn, NY 11210
Phone 7189518800108

4235 Main St
Ste 3M
Flushing, NY 11355
Phone (718) 313-2368

325 Park Ave
Huntington, NY 11743
Phone (631) 351-3700

25 Carrier St
Liberty, NY 12754
Phone (718) 755-0332

1155 Northern Blvd
Manhasset, NY 11030
Phone (516) 407-4000

139 Centre St
Ste 307
New York, NY 10013
Phone (347) 480-5287

130 E 77th St
New York, NY 10075
Phone (212) 434-2606

150 E 42nd St
Fl 10
New York, NY 10017
Phone (646) 605-8119

300 Community Dr
Plandome, NY 11030

9901 Queens Blvd
Rego Park, NY 11374
Phone (718) 268-4500

Networks

  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H3359
  • Healthfirst Medicare Network H9678

Interoperability endpoints

  • Direct secure messaging: hks9005@direct.nyp.org
  • Direct secure messaging: hsiu64536@northwell.direct-ci.com

Organizations & group practices 7

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1198800000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782777600000",
    "number": "1871777607",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "139 CENTRE ST STE 307",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100134554",
            "telephone_number": "212-334-3507",
            "fax_number": "646-365-0469"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "139 CENTRE ST STE 307",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10013",
            "telephone_number": "212-334-3507",
            "fax_number": "646-365-0469"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIU",
        "first_name": "HENRY",
        "middle_name": "KAR HANG",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-12-28",
        "last_updated": "2026-06-30",
        "certification_date": "2026-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "NY",
            "license": "296712",
            "primary": false
        },
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "PA",
            "license": "MD444073",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "296712",
            "primary": false
        },
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "NY",
            "license": "296712",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "048870",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "PA",
            "license": "MT198672",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CT",
            "license": "048870",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MD444073",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP NPI",
            "identifier": "12351923245",
            "state": "NY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TAX ID",
            "identifier": "13-3857638",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.