Ryan Frederick Holbrook, M.D.
Surgical Oncology Physician · Spokane, WA
Ryan Frederick Holbrook, M.D. is a surgical oncology physician with a practice address in Spokane, Washington, and NPI 1801885520, issued on Oct 14, 2005. Check the license (Washington MD00032407, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Ryan Frederick Holbrook
- Credential
- M.D.
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- MD00032407 WA
Self-reported in NPPES; status is on the state search - Practice location
- 601 S Sherman St, Spokane, WA 99202
- Phone
- (509) 228-1000
- Enumerated
- Oct 14, 2005
- Record last updated
- Mar 27, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (509) 252-9300
- Medicaid IDs
- 1093673 WA
000570500 ID - Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 35 in Washington → Look up another NPI →
Also registered at 601 S Sherman St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janet Chestnut, M.D.Hematology & Oncology Physician1316082605
- April Davis, RDRegistered Dietitian1639494453
- Mei Dong, M.D., PH.D.Hematology & Oncology Physician1790960334
- Marsha Fink, M.D.Hematology & Oncology Physician1801892419
- Andrew Francis, M.D.Surgical Oncology Physician1922535509
- Heather Gabbert, MS, RD, CD, LDRegistered Dietitian1053646786
Verify Ryan Frederick Holbrook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00032407Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $34.69
2 payments; by number, the most common kind was education; the largest payer was Merck Sharp & Dohme LLC. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ryan Frederick Holbrook among 35 surgical oncology physician records in Washington
Ryan Frederick Holbrook, M.D. is one of 35 surgical oncology physician records with a practice address in Washington. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2017 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in Washington
There are 35 surgical oncology physician records in Washington.
All 35 in Washington → Every provider in Spokane → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Andrew Francis, M.D.Spokane, WA 992021922535509
- Rebecca Kirschner, MDSpokane, WA 992021093134272
- Michalina Kupsik, M.D.Spokane, WA 992021043657422
- Maryam Parviz, M.D.Spokane, WA 992021962491985
- Deborah Martinez, MDSpokane, WA 992041841359304
- Jessemae Welsh, M.D.Spokane, WA 992081194950295
- Max Seaton, M.D.Spokane Valley, WA 992161184980260
- Richard Smith, M.D.Tacoma, WA 984311033303276
Common questions
What is Ryan Frederick Holbrook, M.D.'s NPI number?
Ryan Frederick Holbrook, M.D.'s National Provider Identifier (NPI) is 1801885520, issued on Oct 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Frederick Holbrook, M.D. located?
The NPPES record lists a practice address at 601 S Sherman St, Spokane, WA, 99202. Phone: (509) 228-1000. Providers update this record themselves, so call before visiting.
How can I verify Ryan Frederick Holbrook, M.D.'s license?
NPPES lists Washington license number MD00032407, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.