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

John A Feilbach, MD

Individual provider Internal Medicine Physician · NPI 1538191168

John A Feilbach, MD is an Internal Medicine in Grafton, Wisconsin. Qualified in 1991, 35 years ago. Practices with Aurora Advanced Healthcare, Inc, a 1,101-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
35
Licensed in
WI
In the registry since
2006
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

215 Washington St
Grafton, WI 53024
Phone: (262) 375-3700
Fax: (262) 376-6020
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 33495 (WI)

Record details

NPI number1538191168
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 6, 2006
Last updated in NPPESDecember 1, 2021
Certification dateDecember 1, 2021
Mailing address215 Washington St, Grafton, WI 53024-1700

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Aurora Advanced Healthcare, Inc. — 1101 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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