Dr. Justin Charles Hamaker, MD
- Medicare services, 2023
- 60
- Medicare patients, 2024
- 22
- Part D claims, 2024
- 129
- Hospital affiliations
- 3
- Industry payments
- $15
- Practice address
- 1224 8th Street, Rupert, ID 83350
- Practice phone
- Call (208) 436-0481
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hamaker's professional email, personal email and mobile number
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Dr. Justin Charles Hamaker is an emergency medicine physician in Rupert, Idaho
Dr. Hamaker practices at Minidoka Memorial Hospital in Rupert, Idaho, part of Ada County, Idaho.
Dr. Hamaker's NPI, 1396903365, was assigned on May 27, 2008. Dr. Hamaker graduated from Baylor College of Medicine in 2008. Dr. Hamaker holds Texas license N3713.
- NPI
- 1396903365NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850431370
- NPI enumeration date
- May 27, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (208) 436-0481
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Justin Charles Hamaker practices at Minidoka Memorial Hospital in Rupert, Idaho
Dr. Hamaker's primary practice is Minidoka Memorial Hospital, at 1224 8th Street, Rupert, ID 83350 in Minidoka County. The practice phone is (208) 436-0481.
- Minidoka Memorial Hospital1224 8th Street, Rupert, ID 83350 · Minidoka CountyPhone(208) 436-0481
Source: Dmand AI Affiliation Data
Dr. Justin Charles Hamaker is affiliated with 4 sites of care and 6 medical groups
Dr. Hamaker's primary practice is Minidoka Memorial Hospital in Rupert, Idaho, part of Ada County, Idaho. Dr. Hamaker is also affiliated with North Canyon Medical Center. The medical group on file is Minidoka Memorial Hospital. Dmand AI also links Dr. Hamaker to 1 more hospital, 5 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Justin Charles Hamaker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamaker practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Minidoka Memorial Hospital | Available with a free account |
| +3 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ada County, Idaho and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Justin Charles Hamaker is one of 322 emergency medicine physicians in Idaho
Emergency medicine is Dr. Hamaker's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Hamaker is licensed in Texas.
Specialties and state licenses
- Emergency medicine, TexasPrimary
Emergency medicine physicians near Dr. Hamaker
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Justin Charles Hamaker billed Medicare for 60 services in 2023
CMS data shows 60 Medicare services from Dr. Hamaker across 2 procedure codes in 2023, for 22 Medicare patients. Medicare paid $5,366 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hamaker's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 2242023: 6073%
Dr. Hamaker compared with the Idaho median for emergency medicine physicians, 2023
- Dr. Hamaker
- Idaho median
- Medicare services
- 60vs 26477% below
- Medicare patients
- 22vs 26592% below
- Part D claims
- 29vs 6757% below
Medians across 335 emergency medicine physicians in Idaho with Dmand AI profiles that report each measure.
Dr. Hamaker's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hamaker and other emergency medicine physicians in Idaho.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Justin Charles Hamaker treated 22 Medicare patients in 2024, average age 69
CMS counts 22 Medicare patients who saw Dr. Hamaker in 2024. The largest group is 65 to 74, with 11 patients. 59% of them have high blood pressure. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hamaker's median patient age at 69, with 62% women.
Dr. Hamaker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Hamaker's Medicare patients, 2024
- High blood pressure59%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hamaker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Justin Charles Hamaker wrote 129 Medicare Part D claims in 2024
In 2024, Dr. Hamaker wrote 129 Medicare Part D claims for 98 patients. 93% of them were for generic drugs. CMS names the drug for 29 of them, across 2 drugs with 11 or more claims each, at $136 in total drug cost. In 2022, CMS named 61 claims across 3 drugs.
Dr. Hamaker's Part D claims by kind of drug, 2024
- Generic120 claims93%
- Brand-name and other9 claims7%
Dr. Hamaker's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Hamaker's Part D claims, 2024
- Antibiotics35%45 of 129 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 612024: 2952%
Drugs named by CMS: 2 in 2024, 3 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Justin Charles Hamaker takes part in Medicare
Dr. Hamaker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Justin Charles Hamaker received $15 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Hamaker from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $15.
Companies that paid Dr. Hamaker the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Justin Charles Hamaker graduated from Baylor College of Medicine
Dr. Hamaker graduated from Baylor College of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Justin Charles Hamaker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Justin Charles Hamaker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Justin Charles Hamaker's NPI number?
Dr. Justin Charles Hamaker's NPI number is 1396903365. It was assigned on May 27, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Justin Charles Hamaker?
Dr. Justin Charles Hamaker is an emergency medicine physician in Rupert, Idaho. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Justin Charles Hamaker practice?
Dr. Hamaker practices at 1224 8th Street, Rupert, ID 83350. Dr. Hamaker's primary practice is Minidoka Memorial Hospital in Rupert, Idaho, part of Ada County, Idaho. Dmand AI also links Dr. Hamaker to 1 hospital, 5 medical groups and 1 group practice or clinic.
What is Dr. Justin Charles Hamaker's office phone number?
The practice phone on file for Dr. Hamaker is (208) 436-0481.
What is Dr. Justin Charles Hamaker's medical license number?
Dr. Hamaker holds Texas license N3713.
Which hospitals is Dr. Justin Charles Hamaker affiliated with?
Dr. Hamaker practices at Minidoka Memorial Hospital in Rupert, Idaho. Dr. Hamaker is also affiliated with North Canyon Medical Center. Dmand AI links Dr. Hamaker to 1 more hospital.
What medical group is Dr. Justin Charles Hamaker part of?
Dr. Hamaker is linked to Minidoka Memorial Hospital. Dmand AI links Dr. Hamaker to 5 more medical groups.
Does Dr. Justin Charles Hamaker accept Medicare?
Yes. CMS data shows Dr. Hamaker billed Medicare for 60 services in 2023, and Dr. Hamaker accepts Medicare assignment.
How many Medicare patients does Dr. Justin Charles Hamaker see?
CMS counts 22 Medicare patients who saw Dr. Hamaker in 2024, with an average age of 69.
What services does Dr. Justin Charles Hamaker bill to Medicare?
In 2023, Dr. Hamaker's most billed Medicare services were emergency department visit (99284) and emergency department visit (99285).
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Where did Dr. Justin Charles Hamaker go to medical school?
Dr. Hamaker graduated from Baylor College of Medicine in 2008.
What drugs does Dr. Justin Charles Hamaker prescribe most?
In 2024 Medicare Part D data, Dr. Hamaker's most prescribed drugs by claims were Cephalexin and Prednisone.
Has Dr. Justin Charles Hamaker received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Hamaker from 1 company from 2023 to 2023. The largest total came from Stryker Corporation.
How long has Dr. Justin Charles Hamaker been practicing?
Dr. Hamaker graduated from medical school in 2008, 18 years ago.
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