Justin Charles Hamaker, MD
Emergency Medicine Physician · Boise, ID
Justin Charles Hamaker, MD is an emergency medicine physician with a practice address in Boise, Idaho, and NPI 1396903365, issued on May 27, 2008. Check the license (Idaho M-11321, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Justin Charles Hamaker
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- M-11321 ID
N3713 TX
Self-reported in NPPES; status is on the state search - Practice location
- 13960 W Wainwright Dr, Boise, ID 83713
- Phone
- (254) 243-0001
- Enumerated
- May 27, 2008
- Record last updated
- Jun 5, 2025
- Medicare enrollment
- Enrolled (PECOS I20110815000626); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 310 in Idaho → Look up another NPI →
Also registered at 13960 W Wainwright Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamia Byrns, MDHospitalist Physician1881676070
- Donald Corson, MDEmergency Medicine Physician1679705586
- Kylee DilworthBehavior Technician1326761560
- Aaron Holsinger, MDEmergency Medicine Physician1013228113
- Megan McNesbyBehavior Analyst1043879109
- Emily Shaleen, BCBABehavior Analyst1861384935
Verify Justin Charles Hamaker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M-11321Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average emergency medicine physician in 2024
129 Medicare Part D claims for 98 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin17 claims
- Prednisone12 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): 97.6 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
- Weiser Valley Hospital DistrictWeiser, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Charles Hamaker among 310 emergency medicine physician records in Idaho
Justin Charles Hamaker, MD is one of 310 emergency medicine physician records with a practice address in Idaho. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 51% of them.
- NPI issued2008 · 51% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2008 · median 2010 among the 161 with a school on file
- Record last updated2025 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
117 emergency medicine physician records list a practice address in Boise
They are 117 of the 9,467 NPPES records with a practice address in Boise, and 310 emergency medicine physician records in Idaho.
All 310 in Idaho → Every provider in Boise → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Hansel Ashby, M.D.Boise, ID 837131548213457
- Donald Corson, MDBoise, ID 837131679705586
- Aaron Holsinger, MDBoise, ID 837131013228113
- Rachel Thomas, M.D.Boise, ID 837131861703670
- Felix Braun, MDBoise, ID 837121275236259
- Emily Clayton, MDBoise, ID 837121093401408
- Andrew Coleman, DOBoise, ID 837121013658269
- Taylor Davidson, DOBoise, ID 837121508502006
Common questions
What is Justin Charles Hamaker, MD's NPI number?
Justin Charles Hamaker, MD's National Provider Identifier (NPI) is 1396903365, issued on May 27, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Justin Charles Hamaker, MD located?
The NPPES record lists a practice address at 13960 W Wainwright Dr, Boise, ID, 83713. Phone: (254) 243-0001. Providers update this record themselves, so call before visiting.
How can I verify Justin Charles Hamaker, MD's license?
NPPES lists Idaho license number M-11321, 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 Justin Charles Hamaker, MD prescribe under Medicare Part D?
In 2024, Justin Charles Hamaker, MD had 129 Medicare Part D claims for 98 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Justin Charles Hamaker, MD's MIPS final score?
The 2023 MIPS final score is 97.6 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.