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

Joseph A. Nicholas, MD

Individual provider Family Medicine Physician · NPI 1528094588

Joseph A. Nicholas, MD is a Family Practice in Greenfield, Wisconsin. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2003, 23 years ago. Practices with Lakeshore Medical Clinic LLC, a 379-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
23
Trained at
University of Iowa, Rj & L Carver College of Medicine
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

4448 W Loomis Rd Ste 100
Greenfield, WI 53220-4851
Phone: (414) 281-5150
Fax: (414) 281-5767
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 49329-020 (WI)

Record details

NPI number1528094588
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2006
Last updated in NPPESJune 25, 2025
Certification dateJune 25, 2025
Mailing addressPo Box 735044, Chicago, IL 60673-5044

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Lakeshore Medical Clinic Llc — 379 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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