William Martens, MD

Obstetrics & Gynecology

20+ years in practiceNPI: 1790741494Licensed in WI

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Credentials & Recognition

Specialties

Obstetrics & Gynecology

NPI sub-specialties

Obstetrics & Gynecology, Gynecology207VG0400X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

20+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#37

Top OB/GYNs in Wisconsin, 2026

Obstetrics & Gynecology · Wisconsin · 2026

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Frequently Asked Questions about Dr. William Martens, MD

Where does Dr. William Martens, MD practice?+
Dr. William Martens, MD practices in Wisconsin, WI. 19475 W NORTH AVE SUITE 400 BROOKFIELD, WI 530454199.
What is Dr. William Martens, MD's phone number?+
Dr. William Martens, MD's practice phone is 262-780-4000. Office contact information is verified on the PBCMMG profile.
What does Dr. William Martens, MD specialize in?+
Dr. William Martens, MD's primary specialty is Obstetrics & Gynecology.
Is Dr. William Martens, MD board certified?+
Board certification status for Dr. William Martens, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. William Martens, MD been practicing?+
Dr. William Martens, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. William Martens, MD's NPI number?+
Dr. William Martens, MD's National Provider Identifier (NPI) is 1790741494, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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