Dr. Kenji Hamanaka, MD
- Medicare services, 2024
- 368
- Medicare patients, 2024
- 266
- Part D claims, 2024
- 72
- MIPS score, 2024
- 85
- Hospital affiliations
- 1
- Practice address
- 1305 W 18th Street, Sioux Falls, SD 57117
- Practice phone
- Call (605) 328-6758
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sanford Medical Center - Unit
Acute Care Hospital-Unit · Sioux Falls, South Dakota
Find Dr. Hamanaka's professional email, personal email and mobile number
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Dr. Kenji Hamanaka is an emergency medicine physician in Sioux Falls, South Dakota
Dr. Hamanaka practices at Sanford Medical Center - Unit in Sioux Falls, South Dakota.
Dr. Hamanaka's NPI, 1700170677, was assigned on June 8, 2011. Dr. Hamanaka holds South Dakota license 9846.
- NPI
- 1700170677NPI Registry (opens in a new tab)
- NPI enumeration date
- June 8, 2011
- NPI status
- Active
- Practice phone
- (605) 328-6758
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Kenji Hamanaka practices at Sanford Medical Center - Unit in Sioux Falls, South Dakota
Dr. Hamanaka's primary practice is Sanford Medical Center - Unit, at 1305 W 18th Street, Sioux Falls, SD 57117 in Minnehaha County. The practice phone is (605) 328-6758.
- Sanford Medical Center - Unit1305 W 18th Street, Sioux Falls, SD 57117 · Minnehaha CountyPhone(605) 328-6758
Source: Dmand AI Affiliation Data
Dr. Kenji Hamanaka is affiliated with 2 sites of care and 1 medical group
Dr. Hamanaka's primary practice is Sanford Medical Center - Unit in Sioux Falls, South Dakota. The medical group on file is Edith Sanford Breast Center Sioux Falls. Dmand AI also links Dr. Hamanaka to 1 more imaging center, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Kenji Hamanaka's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamanaka practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sanford Medical Center - Unit | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kenji Hamanaka is one of 140 emergency medicine physicians in South Dakota
Emergency medicine is Dr. Hamanaka's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Hamanaka is licensed in South Dakota.
Specialties and state licenses
- Emergency medicine, South DakotaPrimary
Emergency medicine physicians near Dr. Hamanaka
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. Kenji Hamanaka billed Medicare for 368 services in 2024
CMS data shows 368 Medicare services from Dr. Hamanaka across 4 procedure codes in 2024, for 266 Medicare patients. Medicare paid $30,398 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hamanaka's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2752024: 2499%
- Tests and treatments
- 2023: 1682024: 11929%
Dr. Hamanaka compared with the South Dakota median for emergency medicine physicians, 2024
- Dr. Hamanaka
- South Dakota median
- Medicare services
- 368vs 28430% above
- Medicare patients
- 266vs 271Close to median
- Part D claims
- 24vs 2814% below
Medians across 138 emergency medicine physicians in South Dakota with Dmand AI profiles that report each measure.
Dr. Hamanaka's most billed Medicare procedure codes, 2024
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kenji Hamanaka treated 266 Medicare patients in 2024, average age 74
CMS counts 266 Medicare patients who saw Dr. Hamanaka in 2024. The largest group is 65 to 74, with 91 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.84, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hamanaka's median patient age at 73, with 62% women.
Dr. Hamanaka's Medicare patients by age, 2024
Dr. Hamanaka's Medicare patients by sex, 2024
- Women15358%
- Men11342%
Chronic conditions among Dr. Hamanaka's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease53%
- Mood disorders47%
- Anxiety45%
- Chronic kidney disease44%
- Depression44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hamanaka's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
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. Kenji Hamanaka wrote 72 Medicare Part D claims in 2024
In 2024, Dr. Hamanaka wrote 72 Medicare Part D claims for 45 patients. 100% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $98 in total drug cost. In 2022, CMS named 14 claims across 1 drug.
Dr. Hamanaka'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. Hamanaka's Part D claims, 2024
- Opioids25%18 of 72 claims
- Antibiotics18%13 of 72 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: 142024: 2471%
Drugs named by CMS: 2 in 2024, 1 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
Dr. Kenji Hamanaka scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Hamanaka for performance year 2024, reported as part of a group.
Dr. Hamanaka's MIPS scores, performance year 2024
- 85of 100Final score
- 78.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Dr. Kenji Hamanaka'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 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 | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| 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. Kenji Hamanaka
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. Kenji Hamanaka's NPI number?
Dr. Kenji Hamanaka's NPI number is 1700170677. It was assigned on June 8, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Kenji Hamanaka?
Dr. Kenji Hamanaka is an emergency medicine physician in Sioux Falls, South Dakota. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Kenji Hamanaka practice?
Dr. Hamanaka practices at 1305 W 18th Street, Sioux Falls, SD 57117. Dr. Hamanaka's primary practice is Sanford Medical Center - Unit in Sioux Falls, South Dakota. Dmand AI also links Dr. Hamanaka to 1 imaging center.
What is Dr. Kenji Hamanaka's office phone number?
The practice phone on file for Dr. Hamanaka is (605) 328-6758.
What is Dr. Kenji Hamanaka's medical license number?
Dr. Hamanaka holds South Dakota license 9846.
What medical group is Dr. Kenji Hamanaka part of?
Dr. Hamanaka is linked to Edith Sanford Breast Center Sioux Falls.
Does Dr. Kenji Hamanaka accept Medicare?
Yes. CMS data shows Dr. Hamanaka billed Medicare for 368 services in 2024.
What is Dr. Kenji Hamanaka's MIPS score?
Dr. Hamanaka's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Kenji Hamanaka see?
CMS counts 266 Medicare patients who saw Dr. Hamanaka in 2024, with an average age of 74.
What services does Dr. Kenji Hamanaka bill to Medicare?
In 2024, Dr. Hamanaka's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
What drugs does Dr. Kenji Hamanaka prescribe most?
In 2024 Medicare Part D data, Dr. Hamanaka's most prescribed drugs by claims were Lisinopril and Oxycodone HCl.
How long has Dr. Kenji Hamanaka been practicing?
Dr. Hamanaka's NPI was assigned in 2011.
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