John S. Siemers, MD
Hospitalist Physician · Coeur D Alene, ID
John S. Siemers, MD is a hospitalist physician with a practice address in Coeur D Alene, Idaho, and NPI 1477781128, issued on Jul 1, 2009. Check the license (Idaho M12062, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John S. Siemers
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- M12062 ID
Self-reported in NPPES; status is on the state search - Practice location
- 2003 Kootenai Health Way, Coeur D Alene, ID 83814
- Phone
- (208) 625-6900
- Enumerated
- Jul 1, 2009
- Record last updated
- Jul 23, 2025
- Fax
- (208) 625-6910
- Medicare enrollment
- Enrolled (PECOS I20131009002083); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 105 in Idaho → Look up another NPI →
Also registered at 2003 Kootenai Health Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric AchatzEmergency Medicine Physician1780145227
- Lindsay Adams, ARNPNurse Practitioner1891133641
- Katie Adrian, RDRegistered Dietitian1053741371
- Kristine Allen, CST/CSFASurgical Assistant1184110827
- Veronica Alotta, RNRegistered Nurse1447173968
- Justin Anderson, MDEmergency Medicine Physician1598414401
Verify John S. Siemers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M12062Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average hospitalist physician in 2024
196 Medicare Part D claims for 93 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass15 claims
- Prednisone11 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.
The MIPS final score for 2023 (Medicare payment program): 94.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Kootenai Health IncOrofino, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John S. Siemers among 105 hospitalist physician records in Idaho
John S. Siemers, MD is one of 105 hospitalist physician records with a practice address in Idaho. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 41% of them.
- NPI issued2009 · 41% of these records are older, 53% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2009 · median 2010 among the 88 with a school on file
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 hospitalist physician records list a practice address in Coeur D Alene
They are 30 of the 2,341 NPPES records with a practice address in Coeur D Alene, and 105 hospitalist physician records in Idaho.
All 105 in Idaho → Every provider in Coeur D Alene → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Rebecca Bertsch, D.O.Coeur D Alene, ID 838141811205297
- Shana Fogarty, M.D.Coeur D Alene, ID 838141104879899
- Magdelena Greene, MDCoeur D Alene, ID 838141740501238
- Molly Howlett, DOCoeur D Alene, ID 838141295901783
- Matthew Kreps, M.D.Coeur D Alene, ID 838141326241175
- Scott Loss, MDCoeur D Alene, ID 838141215964952
- Julie Meltzer, M.D.Coeur D Alene, ID 838141609029826
- Mark Mroczko, MDCoeur D Alene, ID 838141528089885
Common questions
What is John S. Siemers, MD's NPI number?
John S. Siemers, MD's National Provider Identifier (NPI) is 1477781128, issued on Jul 1, 2009. An NPI identifies a provider in billing; it is not a license.
Where is John S. Siemers, MD located?
The NPPES record lists a practice address at 2003 Kootenai Health Way, Coeur D Alene, ID, 83814. Phone: (208) 625-6900. Providers update this record themselves, so call before visiting.
How can I verify John S. Siemers, MD's license?
NPPES lists Idaho license number M12062, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John S. Siemers, MD prescribe under Medicare Part D?
In 2024, John S. Siemers, MD had 196 Medicare Part D claims for 93 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is John S. Siemers, MD's MIPS final score?
The 2023 MIPS final score is 94.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.