Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Hong Suk Yang, MD

Individual provider Internal Medicine Physician · NPI 1093759417

Dr. John Hong Suk Yang, MD is a Cardiovascular Disease (Cardiology) in Effingham, Illinois. Graduated from University of Missouri, Columbia School of Medicine in 1990, 36 years ago. Practices with Springfield Clinic, LLP, a 679-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois, Missouri and Virginia.

Years since qualifying
36
Trained at
University of Missouri, Columbia School of Medicine
Licensed in
IL, MO, VA
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 N Maple St
Effingham, IL 62401-2003
Phone: (217) 528-7541
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 619 E Mason St, Springfield, IL 62701-1034 — (217) 788-0706
  • 78 Medical Center Dr, Fishersville, VA 22939-2332 — (540) 221-7080

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 036166791 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2002021127 (MO)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 2002021127 (MO)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 0101246386 (VA)

Record details

NPI number1093759417
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2006
Last updated in NPPESMarch 10, 2025
Certification dateMarch 10, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Springfield Clinic, Llp — 679 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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