Active NPI
Roie Tzadok, MD
- Gastroenterology Physician
- Boston, MA
National Provider Identifier
1841120177
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- 3019767
- Practice address
- Beth Israel Deaconess Medical Center, Division of Gastr
330 Brookline Ave.
Boston, MA 02215 - Phone
- (617) 667-8427
- NPI assigned
- May 20, 2026
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | 3019767 | MA | Primary |
Addresses
Primary practice location
Beth Israel Deaconess Medical Center, Division of Gastr
330 Brookline Ave.
Boston, MA 02215
Mailing address
Beth Israel Deaconess Medical Center, Division of Gastr
330 Brookline Ave.
Boston, MA 02215
Phone (617) 667-8427
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 3019767 | MA | MD | Gastroenterology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1779235200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1779235200000",
"number": "1841120177",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "BETH ISRAEL DEACONESS MEDICAL CENTER, DIVISION OF GASTR",
"address_2": "330 BROOKLINE AVE.",
"city": "BOSTON",
"state": "MA",
"postal_code": "02215",
"telephone_number": "617-667-8427"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "BETH ISRAEL DEACONESS MEDICAL CENTER, DIVISION OF GASTR",
"address_2": "330 BROOKLINE AVE.",
"city": "BOSTON",
"state": "MA",
"postal_code": "02215",
"telephone_number": "617-667-8427"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TZADOK",
"first_name": "ROIE",
"name_prefix": "Mr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2026-05-20",
"last_updated": "2026-05-20",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "MA",
"license": "3019767",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Boston, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.