Henry Siu, M.D.
Henry Siu, M.D. is an Interventional Cardiology Physician in New York, NY, registered under NPI 1871777607. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 139 CENTRE ST STE 307, New York, NY 10013. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 296712 | NY | Cardiovascular Disease Physician |
| MD444073 | PA | Interventional Cardiology Physician |
| 296712 | NY | Internal Medicine Physician |
| 296712 | NY | Interventional Cardiology Physician primary |
| 048870 | CT | Internal Medicine Physician |
| MT198672 | PA | Cardiovascular Disease Physician |
| 048870 | CT | Hospitalist Physician |
| MD444073 | PA | Internal Medicine Physician |
Licences are recorded in 3 states: NY, PA, CT. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Interventional Cardiology
- PAC ID
- 0840487278
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| New Jersey | I20150904000516 | Practitioner - Interventional Cardiology |
| New York | I20190702000451 | Practitioner - Interventional Cardiology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Interventional Cardiology. There are 2 separate enrolment records across 2 states (NJ, NY). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 3 states
This provider holds licences in 3 states: Connecticut, New York and Pennsylvania. The practice address on file is in New York, NY, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 296712
- Specialty
- Cardiovascular Disease Physician
- Licence
- MD444073
- Specialty
- Interventional Cardiology Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Interventional Cardiology covers
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. NUCC Health Care Provider Taxonomy, code 207RI0011X
All registered taxonomy codes
This provider registers 8 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207RC0000X | Cardiovascular Disease Physician Cardiovascular Disease | 296712 | NY | |
| 207RI0011X | Interventional Cardiology Physician Interventional Cardiology | MD444073 | PA | |
| 207R00000X | Internal Medicine Physician | 296712 | NY | |
| 207RI0011X | Interventional Cardiology Physician Interventional Cardiology | 296712 | NY | primary |
| 207R00000X | Internal Medicine Physician | 048870 | CT | |
| 207RC0000X | Cardiovascular Disease Physician Cardiovascular Disease | MT198672 | PA | |
| 208M00000X | Hospitalist Physician | 048870 | CT | |
| 207R00000X | Internal Medicine Physician | MD444073 | PA |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1871777607 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 28, 2007 |
| Last updated | Jun 30, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
139 CENTRE ST STE 307 New York, NY 10013 (212) 334-3507 Fax (646) 365-0469 |
| Other identifiers |
12351923245
· Other (NY) 13-3857638 · Other (NY) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 7 | 1 | 7 | 7 | 7 | 6 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 5 | 1 | 5 | 7 | 5 | 6 | 0 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.