DR. RONALD J JANZEN MD
NPI 1982643383
Specialist in Oklahoma City, OK
About Dr. Ronald J Janzen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RONALD J JANZEN MD (NPI 1982643383) is an individual specialist in Oklahoma City, Oklahoma, licensed in Oklahoma (10445) and active in the NPI registry since June 2006.
NPPES Registry Identity
Specialties & Licenses
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OKLAHOMA CITY, OK 73120
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ronald Janzen's NPI number?
The NPI number for Ronald Janzen is 1982643383. It was assigned to this individual provider in the NPPES registry on June 4, 2006.
Where is Ronald Janzen located?
Ronald Janzen practices at 4200 W Memorial Rd Suite 212, Oklahoma City, OK 73120. The listed phone number is (405) 755-2087.
What is Ronald Janzen's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
When was this NPI record last updated?
The NPPES record for Ronald Janzen was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.
