Kirk Jihyon Pak, M.D., PH.D., M.SC.
Hospitalist Physician · Elkhorn, WI
Kirk Jihyon Pak, M.D., PH.D., M.SC. is a hospitalist physician with a practice address in Elkhorn, Wisconsin, and NPI 1477812956, issued on May 3, 2012. Check the license (Wisconsin 85101-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kirk Jihyon Pak
- Credential
- M.D., PH.D., M.SC.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 85101-20 WI
01076965A IN
MD.207561 LA
Self-reported in NPPES; status is on the state search - Practice location
- W3985 County Road NN, Elkhorn, WI 53121
- Phone
- (262) 741-2000
- Enumerated
- May 3, 2012
- Record last updated
- Mar 31, 2025
- Medicaid IDs
- 05809560 MS
100307369 WI
2196472 LA
300006000 IN - Medicare enrollment
- Enrolled (PECOS I20170906001771); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at W3985 County Road NN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kirk Jihyon Pak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 85101-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average hospitalist physician in 2024
212 Medicare Part D claims for 89 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Prednisone19 claims
- Pantoprazole Sodium17 claims
- Amoxicillin-Clavulanate Potass16 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 3 group practices
- Franciscan Physician NetworkRenssalaer, IN
- Hamiltion Inpatient Physicians LLCNoblesville, IN
- Mercy Health System CorporationLake Geneva, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kirk Jihyon Pak among 894 hospitalist physician records in Wisconsin
Kirk Jihyon Pak, M.D., PH.D., M.SC. is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 42% of them.
- NPI issued2012 · 42% of these records are older, 53% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2012 · median 2011 among the 768 with a school on file
- Record last updated2025 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 hospitalist physician records list a practice address in Elkhorn
They are 5 of the 372 NPPES records with a practice address in Elkhorn, and 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Elkhorn → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Paul Berce, MDElkhorn, WI 531211437267762
- Alex Canda, MDElkhorn, WI 531211396894705
- Michael Hobbs, MDElkhorn, WI 531211073620696
- Ewelina Jurczyk, M.D.Elkhorn, WI 531211649460908
- Gina Buono, MDCudahy, WI 531101467411546
- Mohammed Hussaini, M.D.Cudahy, WI 531101740667310
- Alyssa Kaleta, DOCudahy, WI 531101174917199
- Asam Khan, D.O.Cudahy, WI 531101104188267
Common questions
What is Kirk Jihyon Pak, M.D., PH.D., M.SC.'s NPI number?
Kirk Jihyon Pak, M.D., PH.D., M.SC.'s National Provider Identifier (NPI) is 1477812956, issued on May 3, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Kirk Jihyon Pak, M.D., PH.D., M.SC. located?
The NPPES record lists a practice address at W3985 County Road NN, Elkhorn, WI, 53121. Phone: (262) 741-2000. Providers update this record themselves, so call before visiting.
How can I verify Kirk Jihyon Pak, M.D., PH.D., M.SC.'s license?
NPPES lists Wisconsin license number 85101-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kirk Jihyon Pak, M.D., PH.D., M.SC. prescribe under Medicare Part D?
In 2024, Kirk Jihyon Pak, M.D., PH.D., M.SC. had 212 Medicare Part D claims for 89 beneficiaries; the average among hospitalist physician prescribers was 521. 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.