John Byun, MD

Rheumatology · 219 Health Network INC

RheumatologyHigh data-match confidence

Directory record — please verify

This listing comes from CMS Medicare Doctors and Clinicians data and was updated September 8, 2026. It does not confirm Medicare coverage, plan network, referral or prior authorization, offered services, or current availability. Verify each item directly before scheduling.

At a glance

John Byun, MD is listed under Rheumatology in Munster, IN. Request their contact details below to confirm current participation and availability.

Request an appointment with John Byun, MD

Send a request to the Covered Paincare team about this provider. An appointment is not booked until confirmed.

Services & care categories

Rheumatology Accepts Medicare assignment

Medicare questions to ask

1Do you currently accept Medicare assignment for these services?
2Is this location in-network for my Medicare Advantage plan?
3Will I need a referral or prior authorization before my visit?
4What out-of-pocket costs should I expect under Medicare?
5Do you provide the specific care I need (pain management, PM&R, behavioral health, or mild TBI)?

Location

Frequently asked questions

Does John Byun, MD accept Medicare?

John Byun, MD is an imported senior-care record. Confirm Medicare participation and network status directly with the facility before scheduling.

Where is John Byun, MD located?

John Byun, MD is located at 9130 Columbia Ave, Suite A, Munster, IN 46321.

What care does John Byun, MD offer?

Listed services include Rheumatology, Accepts Medicare assignment. Verify availability with the facility.

Source

CMS Medicare Doctors and Clinicians data.

How directory records are sourced and updated

Request an appointment with John Byun, MD

Send a request to the Covered Paincare team about this provider. An appointment is not booked until confirmed.

Medicare questions to ask

1Do you currently accept Medicare assignment for these services?
2Is this location in-network for my Medicare Advantage plan?
3Will I need a referral or prior authorization before my visit?
4What out-of-pocket costs should I expect under Medicare?
5Do you provide the specific care I need (pain management, PM&R, behavioral health, or mild TBI)?

Location

Frequently asked questions

Does John Byun, MD accept Medicare?

John Byun, MD is an imported senior-care record. Confirm Medicare participation and network status directly with the facility before scheduling.

Where is John Byun, MD located?

John Byun, MD is located at 9130 Columbia Ave, Suite A, Munster, IN 46321.

What care does John Byun, MD offer?

Listed services include Rheumatology, Accepts Medicare assignment. Verify availability with the facility.