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

Mayumi Oka, MD

Individual provider Diagnostic Radiology Physician · NPI 1417902388

Mayumi Oka, MD is a Diagnostic Radiology Physician in Merrillville, Indiana. Licensed in Indiana. Registered with an NPI since 2006.

Licensed in
IN
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

8701 Broadway
Merrillville, IN 46410-7035
Phone: (219) 738-5565
Fax: (219) 738-6714
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 01060110 (IN)

Record details

NPI number1417902388
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 22, 2006
Last updated in NPPESJanuary 9, 2008

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