Active NPI
Efstathios S Tapazoglou, M.D.
- Hematology & Oncology Physician
- Warren, MI
National Provider Identifier
1821070798
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- ET040673
- Practice address
- 11900 E 12 Mile Rd
Suite 210
Warren, MI 48093-3400 - Phone
- (586) 558-4700
- Fax
- (586) 558-4706
- NPI assigned
- Nov 16, 2005
- 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 |
|---|---|---|---|---|
| Hematology & Oncology Physician | 207RH0003X | ET040673 | MI | Primary |
Addresses
Primary practice location
11900 E 12 Mile Rd
Suite 210
Warren, MI 48093-3400
Mailing address
11900 E 12 Mile Rd
Suite 210
Warren, MI 48093-3400
Phone (586) 558-4700
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| ET040673 | Other | MI | LICENSE NUMBER |
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)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| ET040673 | MI | MD | Hematology & Oncology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1132099200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1821070798",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "11900 E 12 MILE RD",
"address_2": "SUITE 210",
"city": "WARREN",
"state": "MI",
"postal_code": "480933400",
"telephone_number": "586-558-4700",
"fax_number": "586-558-4706"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "11900 E 12 MILE RD",
"address_2": "SUITE 210",
"city": "WARREN",
"state": "MI",
"postal_code": "480933400",
"telephone_number": "586-558-4700",
"fax_number": "586-558-4706"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TAPAZOGLOU",
"first_name": "EFSTATHIOS",
"middle_name": "S",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-11-16",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "MI",
"license": "ET040673",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "LICENSE NUMBER",
"identifier": "ET040673",
"state": "MI"
}
],
"endpoints": [],
"other_names": []
}Other providers in Warren, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.