Medical Specialty Listing

Obstetrics & Gynecology Specialists in Marshfield, WI

Browse 16 Obstetrics & Gynecology providers listed in NPPES with a practice address in Marshfield, Wisconsin.

16 Healthcare Providers

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How Marshfield compares with the U.S.

Marshfield has 86 clinicians in Obstetrics & Gynecology per 100,000 residents, 6.3 times the U.S. rate of 14.

That is 16 active clinicians in Obstetrics & Gynecology with a practice address in Marshfield, for a population of 18,700.

The Wisconsin rate is 13 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

Too few clinicians in Obstetrics & Gynecology in Marshfield are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Obstetrics & Gynecology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Obstetrics & Gynecology practitioners in Marshfield, WI

Source: CMS PECOS

PECOS Enrolled Specialists 12 In Marshfield, WI

Part B Lab & Imaging Eligible 12 Diagnostic Referrals

DME Ordering Eligible 12 Durable Medical Equipment

Home Health Agency Referrals 12 HHA Ordering Eligible

Showing 1–16 of 16 providers

With recent CMS data first, then A–Z

Dr. Shahid Ali Atcha , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment

1000 N Oak Ave, Marshfield, WI 544495703

Phone: 7153875511

NPI Identifier 1144276551

Obstetrics & Gynecology Specialists in Marshfield, WI

How Marshfield compares with the U.S.

Obstetrics & Gynecology Medicare (PECOS) Enrollment & Ordering Eligibility

Dr. Shahid Ali Atcha , MD

Dr. Sarah N. Goetz , MD

Dr. Peter Johnson , MD

Dr. Kim C Mackey , MD

Dr. Anastasia Osipova , MD, PhD

Dr. Joshua James Sampson , DO

Dr. Caitlin Elyse Timmers , MD

Dr. Gregory Tyler , MD

Breanna Zimmermann , NP

Dr. Robert K Gribble , MD

Dr. Paul G Harkins , MD

Dr. Maria Anne Mascola , MD

Dr. Alison Rae Sampson , DO

Dr. Alissa Lee Small , MD

Dr. Michael L Stevens , MD

Dr. Joseph D Welter , MD

Frequently Asked Questions about Obstetrics & Gynecology in Marshfield

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