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

Individual provider Internal Medicine Physician · NPI 1992730725

Dr. John Oh, MD is an Internal Medicine in Niles, Illinois. Graduated from Northwestern University Feinberg Medical School in 1995, 31 years ago. Accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
31
Trained at
Northwestern University Feinberg Medical School
Licensed in
IL
In the registry since
2006
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

241 Golf Mill Ctr Ste 416
Niles, IL 60714-1224
Phone: (847) 375-8282
Fax: (847) 375-8310
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036064092 (IL)

Record details

NPI number1992730725
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESJuly 16, 2023
Certification dateJuly 16, 2023
Mailing address150 W Half Day Rd Ste 206, Buffalo Grove, IL 60089-6591

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 1995 (31 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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