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

John Yoonkeun Jun, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1487878559

John Yoonkeun Jun, MD is an Endocrinology in Toledo, Ohio. Qualified in 1998, 28 years ago. Practices with University of Toledo Physicians LLC, a 395-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Ohio and Pennsylvania.

Years since qualifying
28
Licensed in
OH, PA
In the registry since
2007
Specialties on file
2
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

2100 W Central Ave Fl 2
Toledo, OH 43606
Phone: (567) 420-1600
Fax: (567) 420-1633
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 3125 Transverse Dr, Toledo, OH 43614-8008 — (419) 383-3780
  • 3125 Transverse Dr, Toledo, OH 43614-8008 — (419) 383-3780

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 35.128476 (OH)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence MT187224 (PA)

Record details

NPI number1487878559
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2007
Last updated in NPPESFebruary 10, 2026
Certification dateFebruary 10, 2026
Mailing address3000 Arlington Ave Stop 1108, Toledo, OH 43614-2595

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice University Of Toledo Physicians Llc — 395 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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