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

Dr. Jeffrey John Quackenbush, MD

Individual provider Radiation Oncology Physician · NPI 1639151921

Dr. Jeffrey John Quackenbush, MD is a Radiation Oncology in Valparaiso, Indiana. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1996, 30 years ago. Accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
30
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IN
In the registry since
2005
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

54 Roosevelt Rd
Valparaiso, IN 46383-5845
Phone: (219) 462-8246
Fax: (219) 462-7902
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 01055750A (IN)

Record details

NPI number1639151921
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 14, 2005
Last updated in NPPESJuly 22, 2010

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1996 (30 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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