Active NPI
Okan Cetin, MD
- Student in an Organized Health Care Education/Training Program
- Boston, MA
National Provider Identifier
1093504938
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Student in an Organized Health Care Education/Training Program
- License
- 3018765
- Practice address
- 736 Cambridge Street Mob 308
St. Elizabeths Medical Center Department of Medicine in
Boston, MA 02135 - Phone
- (617) 319-1440
- NPI assigned
- May 6, 2025
- Reactivated
- Mar 17, 2026
- Sex
- Male
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | 3018765 | MA | Primary |
Addresses
Primary practice location
736 Cambridge Street Mob 308
St. Elizabeths Medical Center Department of Medicine in
Boston, MA 02135
Mailing address
736 Cambridge Street Mob 308
St. Elizabeths Medical Center Department of Medicine in
Boston, MA 02135
Phone (617) 319-1440
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20260421001827 | MA | Order and Referring Only - Internal Medicine | 7416423017 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 3018765 | MA | MD | Student in an Organized Health Care Education/Training Program |
Interoperability endpoints
- okan.cetin.1@2017.direct.athenahealth.com
- ocetin130198@direct.bmc.masshiway.net
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1746489600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1773705600000",
"number": "1093504938",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "736 CAMBRIDGE STREET MOB 308",
"address_2": "ST. ELIZABETHS MEDICAL CENTER DEPARTMENT OF MEDICINE IN",
"city": "BOSTON",
"state": "MA",
"postal_code": "02135",
"telephone_number": "617-319-1440"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "736 CAMBRIDGE STREET MOB 308",
"address_2": "ST. ELIZABETHS MEDICAL CENTER DEPARTMENT OF MEDICINE IN",
"city": "BOSTON",
"state": "MA",
"postal_code": "02135",
"telephone_number": "617-319-1440"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CETIN",
"first_name": "OKAN",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2025-05-06",
"last_updated": "2026-03-17",
"certification_date": "2026-03-17",
"deactivation_date": "2026-02-19",
"reactivation_date": "2026-03-17",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": "MA",
"license": "3018765",
"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 Mar 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.