KIRK JIHYON PAK M.D., PH.D., M.SC.
NPI 1477812956
Hospitalist in Elkhorn, WI

Q: What is Kirk Pak's NPI number?

The NPI number for Kirk Pak is 1477812956. It was assigned to this individual provider in the NPPES registry on May 3, 2012.

Q: What is Kirk Pak's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Kirk Pak was last updated on March 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 03, 2012PECOS EnrolledAccepts Medicare Assignment

W3985 COUNTY ROAD NN, ELKHORN, WI 53121(262) 741-2000 Get Directions Write a Review

NPPES record last updated: March 31, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 31, 2025, Aug 15, 2023, Mar 11, 2021 and 4 more (7 updates tracked since 2015).

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About Kirk Jihyon Pak M.d., Ph.d., M.sc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KIRK JIHYON PAK M.D., PH.D., M.SC. (NPI 1477812956) is an individual hospitalist provider in Elkhorn, Wisconsin, licensed in Wisconsin (85101-20) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, is affiliated with Riverview Health, and maintains a secondary practice location in Rensselaer.

NPPES Registry Identity

NPI1477812956

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameKIRK JIHYON PAKCredential: M.D., PH.D., M.SC.

Location AddressW3985 COUNTY ROAD NNElkhorn, WI 53121-4337

Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250

Phone(262) 741-2000

Sole ProprietorNo

Medical School CMSOtherGraduated 2012

Enumeration DateMay 3, 2012

Last NPPES UpdateMarch 31, 20257 updates tracked since enumeration

NPPES CertifiedMarch 31, 2025

✔ NPI 1477812956 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

Licenses✔ Licensed in WI · 85101-20✔ Licensed in IN · 01076965A

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 01076965A (IN), MD.207561 (LA)

W3985 COUNTY ROAD NN, Elkhorn, WI 53121

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Secondary Practice Location 1

Location 11104 E Grace StRensselaer, IN 47978 · Phone (219) 866-5141 · Fax (219) 866-3234

Other Identifiers 5

Other000001195932Anthem

Medicaid05809560MS

Medicaid100307369WI

Medicaid2196472LA

Medicaid300006000IN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Kirk Jihyon Pak M.d., Ph.d., M.sc. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123242500

PECOS Enrollment IDI20170906001771, I20250226000301

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Kirk Pak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Health System Corporation

4.9 mi

Critical Access

N2950 STATE ROAD 67
Lake Geneva, WI 53147

Reassigned Medicare billing, Wisconsin enrollment
Also billed through NPI 1669685129 (Wisconsin)
271 clinicians in this Medicare group

NPI 1699728550 (262) 245-0535

Franciscan Physician Network

137 mi

Urgent Care

1515 W DRAGOON TRL
Mishawaka, IN 46544

Reassigned Medicare billing, Indiana enrollment
1,396 clinicians in this Medicare group

NPI 1366879009 (574) 254-6253

Hamiltion Inpatient Physicians, LLC

222 mi

General Acute Care Hospital

395 WESTFIELD RD
Noblesville, IN 46060

Reassigned Medicare billing, Indiana enrollment
34 clinicians in this Medicare group

NPI 1891821591 (317) 773-0760

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

210 services140 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

95 services93 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

93 services72 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

46 services46 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

32 services29 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

18 services13 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Riverview Health

Acute Care Hospitals · Noblesville, IN

3/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number150059

Location395 Westfield RdNoblesville, IN 46060 · Hamilton County

Emergency services Birthing friendly

Franciscan Health Lafayette

Acute Care Hospitals · Lafayette, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number150109

Location1701 S Creasy LnLafayette, IN 47905 · Tippecanoe County

Emergency services Birthing friendly

Franciscan Health Rensselaer, Inc

Critical Access Hospitals · Rensselaer, IN

OwnershipVoluntary non-profit - Private

CMS Certification Number151324

Location1104 E Grace StRensselaer, IN 47978 · Jasper County

Emergency services

Mercy Walworth Hospital & Medical Center

Critical Access Hospitals · Lake Geneva, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number521357

LocationN2950 State Road 67Lake Geneva, WI 53147 · Walworth County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53121 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$123.69 typical visit price

range $53.90 – $163.24

Typical copayment $30.92 (range $13.47 – $40.81)

Most-billed visit code 99204

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan

Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…

100%276 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers15 claims15 services$84.29 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARC ELLIOTT GOSNELL MD

Student in an Organized Health Care Education/Training Program