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

Mr. Mark Henry Decker, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1235244484

Mr. Mark Henry Decker, MD is an Obstetrics & Gynecology Physician in Milwaukee, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

215 N 35th St
Milwaukee, WI 53208-4106
Phone: (414) 931-7600
Fax: (414) 271-9951
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X · Licence 26951-020 (WI)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 26951 (WI)

Record details

NPI number1235244484
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 20, 2006
Last updated in NPPESMarch 7, 2023
Mailing address215 North 35th Street, Milwaukee, WI 53208

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