Dr. Henry Kar Hang Siu, MD
- Medicare services, 2024
- 1,029
- Medicare patients, 2024
- 150
- Part D claims, 2024
- 8,568
- Publications
- 8
- Hospital affiliations
- 1
- Practice address
- 139 Centre St, New York, NY 10013
- Practice phone
- Call (212) 431-4309
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
GI Health and Medical PLLC
New York, New York
Find Dr. Siu's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Henry Kar Hang Siu is an interventional cardiologist in New York, New York
Dr. Siu practices at GI Health and Medical PLLC in New York, New York.
Dr. Siu's NPI, 1871777607, was assigned on December 28, 2007. Dr. Siu graduated from State University of New York Downstate Medical Center in 2007. Dr. Siu holds New York license 296712.
- NPI
- 1871777607NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840487278
- NPI enumeration date
- December 28, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (212) 431-4309
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Henry Kar Hang Siu practices at GI Health and Medical PLLC in New York, New York
Dr. Siu's primary practice is GI Health and Medical PLLC, at 139 Centre St, New York, NY 10013 in New York County. The practice phone is (212) 431-4309.
- GI Health and Medical PLLC139 Centre St, New York, NY 10013 · New York CountyPhone(212) 431-4309
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Henry Kar Hang Siu is affiliated with 7 sites of care and 5 medical groups
Dr. Siu's primary practice is GI Health and Medical PLLC in New York, New York. Dr. Siu is also affiliated with Lenox Hill Hospital. The medical group on file is Chinatown Cardiology. Dmand AI also links Dr. Siu to 5 more group practices and clinics and 4 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Henry Kar Hang Siu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Siu practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| GI Health and Medical PLLC | Available with a free account |
| +6 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Henry Kar Hang Siu is one of 363 interventional cardiologists in New York
Interventional cardiology is Dr. Siu's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dmand AI has Dr. Siu's licenses on file in 3 states: New York, Connecticut and Pennsylvania.
Specialties and state licenses
- Interventional cardiology, New YorkPrimary
- Hospitalist, Connecticut
- Internal medicine, Pennsylvania
Interventional cardiologists near Dr. Siu
Counts of interventional cardiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Henry Kar Hang Siu billed Medicare for 1,029 services in 2024
CMS data shows 1,029 Medicare services from Dr. Siu across 17 procedure codes in 2024, for 150 Medicare patients. Medicare paid $98,727 for them. Every service was in an office.
Dr. Siu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 3152024: 37118%
- Office and hospital visits
- 2023: 2392024: 28519%
- Other services
- 2023: 742024: 259250%
- Drugs given in the office
- 2023: 1122024: 8425%
- Imaging
- 2023: 372024: 3019%
Dr. Siu compared with the New York median for interventional cardiologists, 2024
- Dr. Siu
- New York median
- Medicare services
- 1,029vs 9765% above
- Medicare patients
- 150vs 34156% below
- Part D claims
- 8,136vs 9368.7 times
Medians across 352 interventional cardiologists in New York with Dmand AI profiles that report each measure.
Dr. Siu's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Henry Kar Hang Siu treated 150 Medicare patients in 2024, average age 76
CMS counts 150 Medicare patients who saw Dr. Siu in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 62% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Siu's median patient age at 70, with 48% women.
Dr. Siu's Medicare patients by age, 2024
Dr. Siu's Medicare patients by sex, 2024
- Women8859%
- Men6241%
Chronic conditions among Dr. Siu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes55%
- Ischemic heart disease51%
- Arthritis41%
- Chronic kidney disease37%
- Heart failure21%
- Osteoporosis19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Siu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Henry Kar Hang Siu wrote 8,568 Medicare Part D claims in 2024
In 2024, Dr. Siu wrote 8,568 Medicare Part D claims for 898 patients. 57% of them were for generic drugs. CMS names the drug for 8,136 of them, across 86 drugs with 11 or more claims each, at $3,315,575 in total drug cost. In 2023, CMS named 6,478 claims across 68 drugs.
Dr. Siu's Part D claims by kind of drug, 2024
- Generic4,910 claims57%
- Brand-name3,641 claims42%
- Other17 claims0%
Dr. Siu's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Siu's Part D claims, 2024
- Antibiotics0%13 of 8,568 claims
- Antipsychotics, patients 65 and over0%22 of 8,568 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6,4782024: 8,13626%
Drugs named by CMS: 86 in 2024, 68 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Henry Kar Hang Siu offers telehealth to Medicare patients
Dr. Siu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Siu as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Coronary angioplasty and stenting: 1 to 10 procedures (CMS shows small counts as a range)
Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)
Varicose vein removal: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Henry Kar Hang Siu has 8 publications on record
Dmand AI links 8 papers to Dr. Siu, published from 2015 to 2023. 2018 was the busiest year, with 2. The most frequent topics are Drug-Eluting Stents and Myocardial Infarction. Dr. Siu's most frequent co-authors are Antony George Kaliyadan, MD, Tak W. Kwan, MD and Michael P. Savage, MD.
Dr. Siu's papers by year, 2015 to 2023
Topics Dr. Siu writes about most
- Drug-Eluting Stents
- Myocardial Infarction
Dr. Siu's most frequent co-authors
- Antony George Kaliyadan, MD3 shared papers
- Tak W. Kwan, MD2 shared papers
- Michael P. Savage, MD2 shared papers
Recent publications by Dr. Siu
See who Dr. Siu researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Siu works with, so you can find a warm path to the right interventional cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Henry Kar Hang Siu received $240,854 in industry payments from 2016 to 2025
CMS Open Payments shows 1,253 general payments to Dr. Siu from 55 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 69% of the total. Esperion Therapeutics, Inc. paid the most, $97,770.
General payments to Dr. Siu by program year, 2016 to 2025
General payments to Dr. Siu by kind, 2016 to 2025
- Speaker and faculty fees$166,24169%
- Food and beverage$44,00118%
- Consulting fees$24,02810%
- Travel and lodging$6,4473%
- Other$1370%
Companies that paid Dr. Siu the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Henry Kar Hang Siu graduated from State University of New York Downstate Medical Center
Dr. Siu graduated from State University of New York Downstate Medical Center in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Henry Kar Hang Siu's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Henry Kar Hang Siu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Henry Kar Hang Siu's NPI number?
Dr. Henry Kar Hang Siu's NPI number is 1871777607. It was assigned on December 28, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Henry Kar Hang Siu?
Dr. Henry Kar Hang Siu is an interventional cardiologist in New York, New York. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).
Where does Dr. Henry Kar Hang Siu practice?
Dr. Siu practices at 139 Centre St, New York, NY 10013. Dr. Siu's primary practice is GI Health and Medical PLLC in New York, New York. Dmand AI also links Dr. Siu to 5 group practices and clinics and 4 medical groups.
What is Dr. Henry Kar Hang Siu's office phone number?
The practice phone on file for Dr. Siu is (212) 431-4309.
What is Dr. Henry Kar Hang Siu's medical license number?
Dr. Siu holds New York license 296712, one of the licenses on file in 3 states.
Which states has Dr. Henry Kar Hang Siu been licensed in?
Dmand AI has state licenses on file for Dr. Siu in New York, Connecticut and Pennsylvania.
Which hospitals is Dr. Henry Kar Hang Siu affiliated with?
Dr. Siu is affiliated with Lenox Hill Hospital.
What medical group is Dr. Henry Kar Hang Siu part of?
Dr. Siu is linked to Chinatown Cardiology. Dmand AI links Dr. Siu to 4 more medical groups.
Does Dr. Henry Kar Hang Siu accept Medicare?
Yes. CMS data shows Dr. Siu billed Medicare for 1,029 services in 2024, and Dr. Siu accepts Medicare assignment.
Does Dr. Henry Kar Hang Siu offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Siu as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Henry Kar Hang Siu see?
CMS counts 150 Medicare patients who saw Dr. Siu in 2024, with an average age of 76.
What services does Dr. Henry Kar Hang Siu bill to Medicare?
In 2024, Dr. Siu's most billed Medicare services were office visit, established patient (99213), medicare service (G2211) and heart test or procedure (93000).
Where did Dr. Henry Kar Hang Siu go to medical school?
Dr. Siu graduated from State University of New York Downstate Medical Center in 2007.
What drugs does Dr. Henry Kar Hang Siu prescribe most?
In 2024 Medicare Part D data, Dr. Siu's most prescribed drugs by claims were Xarelto, Atorvastatin Calcium and Metoprolol Succinate.
Has Dr. Henry Kar Hang Siu received payments from drug or device companies?
CMS Open Payments shows $240,854 in general payments to Dr. Siu from 55 companies from 2016 to 2025. The largest total came from Esperion Therapeutics, Inc.
How long has Dr. Henry Kar Hang Siu been practicing?
Dr. Siu graduated from medical school in 2007, 19 years ago.
Does Dr. Henry Kar Hang Siu do research?
Dmand AI links 8 publications to Dr. Siu, published from 2015 to 2023.
Who does Dr. Henry Kar Hang Siu publish with?
Dr. Siu's most frequent co-authors are Antony George Kaliyadan, MD (3 shared papers), Tak W. Kwan, MD (2 shared papers) and Michael P. Savage, MD (2 shared papers).
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