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

Jonathan T Ketzler, MD

Individual provider Anesthesiology Physician · NPI 1275509754

Jonathan T Ketzler, MD is an Anesthesiology in Madison, Wisconsin. Graduated from University of Nebraska College of Medicine in 1992, 34 years ago. Practices with Freeport Memorial Hospital, a 140-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
34
Trained at
University of Nebraska College of Medicine
Licensed in
WI
In the registry since
2006
Specialties on file
3
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

600 Highland Ave
Madison, WI 53792
Phone: (608) 263-8100
Fax: (608) 263-0575
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Anesthesiology) Physician (primary) Taxonomy 207LC0200X · Licence 34982 (WI)
Anesthesiology Physician Taxonomy 207L00000X · Licence 34982 (WI)
Pain Medicine (Anesthesiology) Physician Taxonomy 207LP2900X · Licence 34982 (WI)

Record details

NPI number1275509754
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 24, 2006
Last updated in NPPESMay 4, 2023
Certification dateMay 4, 2023

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Freeport Memorial Hospital — 140 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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