Eunhye Oak, MD
Neurology Physician · Rapid City, SD
Eunhye Oak, MD is a neurology physician with a practice address in Rapid City, South Dakota, and NPI 1790305787, issued on Apr 20, 2020. Check the license on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Eunhye Oak
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 330191 NY
Self-reported in NPPES; status is on the state search - Practice location
- 353 Fairmont Blvd, Rapid City, SD 57701
- Phone
- (605) 755-2223
- Enumerated
- Apr 20, 2020
- Record last updated
- Sep 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20251105004632); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 51 in South Dakota → Look up another NPI →
Also registered at 353 Fairmont Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Eunhye Oak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average neurology physician in 2024
39 Medicare Part D claims for 17 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $23.66
1 payment: food and beverage; the largest payer was Mitsubishi Tanabe Pharma America, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Monument Health Rapid City Hospital IncRapid City, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eunhye Oak among 51 neurology physician records in South Dakota
Eunhye Oak, MD is one of 51 neurology physician records with a practice address in South Dakota. 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 2020, is newer than 86% of them.
- NPI issued2020 · 86% of these records are older, 4% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2020 · median 2009 among the 41 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in South Dakota
There are 51 neurology physician records in South Dakota.
All 51 in South Dakota → Every provider in Rapid City → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Douglas Brown, MDRapid City, SD 577011063591857
- Heather Cwach, MDRapid City, SD 577011255481420
- Robert Finley, MDRapid City, SD 577011891845145
- Steven Hata, MDRapid City, SD 577011003966334
- Mohamadmostafa Jahansouz, MDRapid City, SD 577011275160244
- Jennifer Kruger, MDRapid City, SD 577011396953774
- Robert Maclachlan, M.D.Rapid City, SD 577011265491195
- Lee McCraney, DORapid City, SD 577011619534021
Common questions
What is Eunhye Oak, MD's NPI number?
Eunhye Oak, MD's National Provider Identifier (NPI) is 1790305787, issued on Apr 20, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Eunhye Oak, MD located?
The NPPES record lists a practice address at 353 Fairmont Blvd, Rapid City, SD, 57701. Phone: (605) 755-2223. Providers update this record themselves, so call before visiting.
How can I verify Eunhye Oak, MD's license?
Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eunhye Oak, MD prescribe under Medicare Part D?
In 2024, Eunhye Oak, MD had 39 Medicare Part D claims for 17 beneficiaries; the average among neurology physician prescribers was 1,370. 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.