HAKAN KAYA (M.D.) – Medical Oncology Physician, NPI 1255320974
Medical Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
181 MEDICAL ONCOLOGY in WA
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Provider Addresses for HAKAN KAYA (M.D.)
601, South Sherman Street, Spokane, Spokane County, Washington, 99202, United States
SPOKANE, WA 992021311
Phone: (509) 228-1000
Fax: (509) 252-9300
Type: Location
PO BOX 3868
SPOKANE, WA 992203868
Phone: (509) 228-1000
Fax: (509) 252-9300
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 556 Open Payments records for all available years, with a total value of $739,794.
Total Amount is formed as General ($739,794) + Research ($0) + Ownership ($0) = $739,794.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: BeiGene USA, Inc. ($161,833).
Total Amount
$739,794
General + Research + Ownership
Payments
556
Total payment records
General Amount
$739,794
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| BeiGene USA, Inc. | $161,833 |
| Takeda Pharmaceuticals U.S.A., Inc. | $129,760 |
| Karyopharm Therapeutics Inc. | $107,038 |
| GENZYME CORPORATION | $69,486 |
| PFIZER INC. | $65,458 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-04-28
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040428000847 | I | Medical Oncology | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J9144 | Injection, daratumumab, 10 mg and hyaluronidase-fihj | 35,640 | 31 | $0 |
| Q9967 | Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 6,720 | 50 | $0 |
| J9041 | Injection, bortezomib, 0.1 mg | 4,515 | 25 | $0 |
| J0897 | Injection, denosumab, 1 mg | 4,500 | 26 | $0 |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | 3,524 | 75 | $0 |
Insurance plans in this area (ZIP 99202)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WA | |
| - | WA | |
| - | WA | |
| Surgical Oncology | IL | |
| Nurse Practitioner | ID | |
| Radiation Oncology | WA | |
| - | WA | |
| Nurse Practitioner | MT | |
| Surgical Oncology | WA | |
| Radiation Oncology | WA |
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