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

Dr. Stephen John Johnston, MD

Individual provider Diagnostic Radiology Physician · NPI 1255759189

Dr. Stephen John Johnston, MD is a Diagnostic Radiology in Milwaukee, Wisconsin. Graduated from Medical College of Wisconsin in 2014, 12 years ago. Practices with Froedtert Manitowoc Medical Group, LLC, a 157-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
12
Trained at
Medical College of Wisconsin
Licensed in
WI
In the registry since
2014
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

9200 W Wisconsin Ave
Milwaukee, WI 53226
Phone: (414) 955-1187
Fax: (414) 259-9290
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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 66599-20 (WI)

Record details

NPI number1255759189
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 28, 2014
Last updated in NPPESJune 17, 2019
Mailing address9200 W Wisconsin Ave, Milwaukee, WI 53226-3522

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2014 (12 years in practice)
Group practice Froedtert Manitowoc Medical Group, Llc — 157 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations15 on file with Medicare

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