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JOHN JONGYOON BYUN
NPI 1730684671
Internal Medicine - Rheumatology in Munster, IN

Active since March 23, 2018PECOS EnrolledAccepts Medicare Assignment
9130 COLUMBIA AVE STE A, MUNSTER, IN 46321(219) 836-1310(219) 836-0617 Get Directions Write a Review

NPPES record last updated: October 27, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 27, 2023, Jun 17, 2021, Jun 9, 2021 and 2 more (5 updates tracked since 2018).

About John Jongyoon Byun NPPES

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

JOHN JONGYOON BYUN (NPI 1730684671) is an individual rheumatology provider in Munster, Indiana, licensed in Indiana (01090266A) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with St Catherine Hospital Inc, and is a graduate of Medical College Of Wisconsin (2018).

NPPES Registry Identity

NPI1730684671
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameJOHN JONGYOON BYUN
Location Address9130 COLUMBIA AVE STE AMunster, IN 46321-2932
Mailing Address8558 BroadwayMerrillville, IN 46410-7032
Phone(219) 836-1310
Fax(219) 836-0617
Sole ProprietorNo
Medical School CMSMedical College Of WisconsinGraduated 2018
Enumeration DateMarch 23, 2018
Last NPPES UpdateOctober 27, 20235 updates tracked since enumeration
NPPES CertifiedOctober 27, 2023
✔ NPI 1730684671 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Licenses✔ Licensed in IN · 01090266A✔ Licensed in IL · 036.155247
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
9130 COLUMBIA AVE STE A, Munster, IN 46321
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John Jongyoon Byun 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 ID1052669066
PECOS Enrollment IDI20230829000150
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.

Areas of Expertise CMS Part B claims 2

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.
32 services19 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.
20 services19 patients

Hospital Affiliations CMS Care Compare 3

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

St Catherine Hospital Inc

Acute Care Hospitals · East Chicago, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150008
Location4321 Fir StreetEast Chicago, IN 46312 · Lake County
Emergency services Birthing friendly

St Mary Medical Center Inc

Acute Care Hospitals · Hobart, IN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150034
Location1500 S Lake Park AveHobart, IN 46342 · Lake County
Emergency services Birthing friendly

Community Hospital

Acute Care Hospitals · Munster, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150125
Location901 Macarthur BlvdMunster, IN 46321 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46321 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
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
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.

Other Providers at the Same Location NPPES

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

219 HEALTH NETWORK, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
9130 COLUMBIA AVE STE A
MUNSTER, IN 46321
Lake County (219) 554-4081

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Byun's NPI number?

The NPI number for John Byun is 1730684671. It was assigned to this individual provider in the NPPES registry on March 23, 2018.

Where is John Byun located?

John Byun practices at 9130 Columbia Ave Ste A, Munster, IN 46321. The listed phone number is (219) 836-1310.

What is John Byun's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is John Byun enrolled in Medicare?

Yes. John Byun is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Byun accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list John Byun as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Byun affiliated with any hospitals?

According to CMS data, John Byun is affiliated with St Catherine Hospital Inc, St Mary Medical Center Inc and Community Hospital.

When was this NPI record last updated?

The NPPES record for John Byun was last updated on October 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.