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

Joseph G. Trojan, MD

Individual provider Internal Medicine Physician · NPI 1225022700

Joseph G. Trojan, MD is an Internal Medicine Physician in Milwaukee, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2005.

Licensed in
WI
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

2500 W Layton Ave Ste 10
Milwaukee, WI 53221-5420
Phone: (414) 282-2006
Fax: (414) 281-8704
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 26061 (WI)

Record details

NPI number1225022700
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 9, 2005
Last updated in NPPESNovember 21, 2008
Mailing addressPo Box 689711, Milwaukee, WI 53268-9711

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