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

John J. Byrne, MD

Individual provider Internal Medicine Physician · NPI 1386678720

John J. Byrne, MD is a Hospitalist in Racine, Wisconsin. Graduated from Medical College of Wisconsin in 1979, 47 years ago. Practices with Ascension Medical Group-Southeast Wisconsin Inc, a 555-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
47
Trained at
Medical College of Wisconsin
Licensed in
WI
In the registry since
2006
Specialties on file
2
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

3801 Spring St
Racine, WI 53405-1667
Phone: (262) 687-5068
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 29042 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 29042 (WI)

Record details

NPI number1386678720
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESJune 5, 2017
Mailing address3801 Spring St, Racine, WI 53405-1667

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 1979 (47 years in practice)
Group practice Ascension Medical Group-Southeast Wisconsin Inc — 555 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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