Michael Kos, MD
NPI 1366599631 · Radiation Oncology Physician · Spokane Valley, WA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Kos, MD is a Radiation Oncology Physician provider in Spokane Valley, WA (NPI 1366599631).
Provider details
- NPI number
- 1366599631
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD61157599 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,533 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 374 | $115 |
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment SessionG6015 | 344 | $344 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 159 | $41 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 107 | $182 |
| Calculation of Radiation Therapy Dose77300 | 97 | $30 |
| Continuing Radiation Therapy Consultation Per Week77336 | 68 | $85 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,136 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 415 6th StLewiston, ID 83501-2431Phone: (208) 799-5755
- 504 6th StLewiston, ID 83501-2439Phone: (208) 799-5755
- 1641 E Polston Ave Ste 102Post Falls, ID 83854-7852Phone: (208) 273-9186
Registry dates
- Enumerated
- 2007-01-05
- Last updated
- 2026-03-18
- Certified
- 2026-03-18
Frequently asked questions
- What is Michael Kos's NPI number?
- Michael Kos's National Provider Identifier (NPI) is 1366599631, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Kos's specialty?
- Michael Kos is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Kos located?
- Michael Kos's practice location on file with NPPES is 13424 E Mission Ave # a, Spokane Valley, WA 99216-2759.
- What is Michael Kos's phone number?
- The practice phone number listed in the NPPES registry for Michael Kos is (509) 321-4980.
- Does Michael Kos accept Medicare?
- Michael Kos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Kos's NPI active?
- Yes — Michael Kos's NPI (1366599631) is active in the NPPES registry as of the last update on 2026-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.