Active NPI
Zafer Yildirim, MD,PHD
- Medical Oncology Physician
- Longview, WA
National Provider Identifier
1508858812
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Medical Oncology Physician
- License
- MD00043047
- Practice address
- 1615 Delaware St
Longview, WA 98632-2310 - Phone
- (360) 414-7878
- Fax
- (360) 414-7876
- NPI assigned
- Aug 22, 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | MD00043047 | WA | |
| Hematology (Internal Medicine) Physician | 207RH0000X | MD00043047 | WA | |
| Medical Oncology Physician | 207RX0202X | MD00043047 | WA | Primary |
Addresses
Primary practice location
1615 Delaware St
Longview, WA 98632-2310
Mailing address
PO Box 249
Longview, WA 98632-7154
Phone (360) 414-2048
Other identifiers 5
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 8386294 | Medicaid | WA | |
| 8930190 | Other | WA | CRIME VICTIMS |
| P00154540 | Other | RR MEDICARE | |
| 029007 | Medicaid | OR | |
| 221981 | Other | WA | LABOR & IND. |
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, Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD00043047 | WA | MD | Medical Oncology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1124668800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1508858812",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 249",
"city": "LONGVIEW",
"state": "WA",
"postal_code": "986327154",
"telephone_number": "360-414-2048",
"fax_number": "360-575-6749"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1615 DELAWARE ST",
"city": "LONGVIEW",
"state": "WA",
"postal_code": "986322310",
"telephone_number": "360-414-7878",
"fax_number": "360-414-7876"
}
],
"practiceLocations": [],
"basic": {
"last_name": "YILDIRIM",
"first_name": "ZAFER",
"credential": "MD,PHD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-08-22",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "WA",
"license": "MD00043047",
"primary": false
},
{
"code": "207RH0000X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology",
"state": "WA",
"license": "MD00043047",
"primary": false
},
{
"code": "207RX0202X",
"taxonomy_group": "",
"desc": "Internal Medicine, Medical Oncology",
"state": "WA",
"license": "MD00043047",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "8386294",
"state": "WA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "CRIME VICTIMS",
"identifier": "8930190",
"state": "WA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "RR MEDICARE",
"identifier": "P00154540",
"state": null
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "029007",
"state": "OR"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "LABOR & IND.",
"identifier": "221981",
"state": "WA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Longview, WA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.