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

Dr. Diana L Maas, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1427009273

Dr. Diana L Maas, MD is an Endocrinology, Diabetes & Metabolism Physician in Milwaukee, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

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 Partly verified

Some contact details are missing from the federal record.

Froedtert & Med College Clin - East 9200 West Wisconsin Ave
Milwaukee, WI 53226
Phone: (414) 805-3666
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Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 27716 (WI)

Record details

NPI number1427009273
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 15, 2006
Last updated in NPPESJuly 24, 2019

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