Daniel John Koster
Internal Medicine Physician · Spokane, WA
Daniel John Koster is an internal medicine physician with a practice address in Spokane, Washington, and NPI 1558715946, issued on Apr 21, 2016. Check the license (Washington MD60968027, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Daniel John Koster
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD60968027 WA
Self-reported in NPPES; status is on the state search - Practice location
- 101 W 8TH Ave, Spokane, WA 99204
- Phone
- (509) 474-3260
- Enumerated
- Apr 21, 2016
- Record last updated
- May 30, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (509) 474-3245
- Medicare enrollment
- Enrolled (PECOS I20190822002746); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 101 W 8TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Isaac AanensonCertified Registered Nurse Anesthetist1821535972
- Alexandra AchenbachStudent in an Organized Health Care Education/Training Program1740983451
- Roger Acuncius, RPHPharmacotherapy Pharmacist1477620763
- James Adams, NPNurse Practitioner1245828227
- Michael Adams, DOStudent in an Organized Health Care Education/Training Program1144022963
- Amanda Affleck, CRNACertified Registered Nurse Anesthetist1073773057
Verify Daniel John Koster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60968027Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
270 Medicare Part D claims for 117 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Prednisone17 claims
- Furosemide16 claims
- Potassium Chloride15 claims
- Pantoprazole Sodium14 claims
- Albuterol Sulfate Hfa11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Providence Health And Services WashingtonSpokane, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel John Koster among 3,079 internal medicine physician records in Washington
Daniel John Koster is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2016 · median 2006 among the 1,852 with a school on file
- Record last updated2019 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
230 internal medicine physician records list a practice address in Spokane
They are 230 of the 14,049 NPPES records with a practice address in Spokane, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Spokane → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Radica Alicic, M.D.Spokane, WA 992041780667642
- Eric Anacker, MDSpokane, WA 992041033110911
- Jose Carneiro, M.D.Spokane, WA 992041033106554
- Svetlana Cox, MDSpokane, WA 992041467418384
- John Frlan, MDSpokane, WA 992041609858778
- Sean Garman, M.D.Spokane, WA 992041295723690
- Monica Hardie, M.D.Spokane, WA 992041881679017
- Jeff Johnson, MDSpokane, WA 992041558353201
Common questions
What is Daniel John Koster's NPI number?
Daniel John Koster's National Provider Identifier (NPI) is 1558715946, issued on Apr 21, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Daniel John Koster located?
The NPPES record lists a practice address at 101 W 8TH Ave, Spokane, WA, 99204. Phone: (509) 474-3260. Providers update this record themselves, so call before visiting.
How can I verify Daniel John Koster's license?
NPPES lists Washington license number MD60968027, 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.
How much does Daniel John Koster prescribe under Medicare Part D?
In 2024, Daniel John Koster had 270 Medicare Part D claims for 117 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.