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

Dr. Ronald J Janzen, MD

Individual provider Specialist · NPI 1982643383

Dr. Ronald J Janzen, MD is a Specialist in Oklahoma City, Oklahoma. Licensed in Oklahoma. Registered with an NPI since 2006.

Licensed in
OK
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

4200 W Memorial Rd Ste 212
Oklahoma City, OK 73120-9350
Phone: (405) 755-2087
Fax: (405) 755-2959
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 10445 (OK)

Record details

NPI number1982643383
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 4, 2006
Last updated in NPPESJuly 13, 2026

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