Ryan John Day, MD
Internal Medicine Physician · Boise, ID
Ryan John Day, MD is an internal medicine physician with a practice address in Boise, Idaho, and NPI 1982281747, issued on Mar 26, 2021. Check the license (Idaho M-16840, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Ryan John Day
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- M-16840 ID
Self-reported in NPPES; status is on the state search - Practice location
- 1000 E Park Blvd, Boise, ID 83712
- Phone
- (208) 381-4100
- Enumerated
- Mar 26, 2021
- Record last updated
- Jul 10, 2024
- Fax
- (208) 381-4101
- Medicare enrollment
- Enrolled (PECOS I20240724002300); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 453 in Idaho → Look up another NPI →
Also registered at 1000 E Park Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Biddle, PHARM.D., BCPSPharmacist1316216773
- Lea Bowman, LCSWClinical Social Worker1629557905
- Zoe HardyLaboratory Management Specialist/Technologist1801716899
- Samantha Smith, PA-CPhysician Assistant1992270557
- Alex Tanabe, M.D.Internal Medicine Physician1134513088
Verify Ryan John Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M-16840Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
320 Medicare Part D claims for 60 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Atorvastatin Calcium44 claims
- Amlodipine Besylate16 claims
- Trazodone Hcl15 claims
- Levothyroxine Sodium13 claims
- Rosuvastatin Calcium13 claims
- Citalopram Hbr12 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
- St Lukes Clinic-Treasure Valley LLCMeridian, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan John Day among 453 internal medicine physician records in Idaho
Ryan John Day, MD is one of 453 internal medicine physician records with a practice address in Idaho. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 83% of them.
- NPI issued2021 · 83% of these records are older, 15% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2021 · median 2011 among the 254 with a school on file
- Record last updated2024 · 44% 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 Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
217 internal medicine physician records list a practice address in Boise
They are 217 of the 9,467 NPPES records with a practice address in Boise, and 453 internal medicine physician records in Idaho.
All 453 in Idaho → Every provider in Boise → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jennifer Anderson, MDBoise, ID 837121093825903
- Donna Beeson, D.O.Boise, ID 837121689630436
- Peter Cliften, M.D.Boise, ID 837121760473771
- Karen East, MDBoise, ID 837121255380150
- Gabriel Garber, MDBoise, ID 837121588632830
- Erika Lewis, M.D.Boise, ID 837121659320570
- Julie Lyon, M.D.Boise, ID 837121285685891
- Laura McGeorge, MDBoise, ID 837121629029699
Common questions
What is Ryan John Day, MD's NPI number?
Ryan John Day, MD's National Provider Identifier (NPI) is 1982281747, issued on Mar 26, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ryan John Day, MD located?
The NPPES record lists a practice address at 1000 E Park Blvd, Boise, ID, 83712. Phone: (208) 381-4100. Providers update this record themselves, so call before visiting.
How can I verify Ryan John Day, MD's license?
NPPES lists Idaho license number M-16840, 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 Ryan John Day, MD prescribe under Medicare Part D?
In 2024, Ryan John Day, MD had 320 Medicare Part D claims for 60 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.