Primary Care Doctors Near Me in Fond Du Lac, WI - Ascension

Family Medicine • Fond du Lac, WI

Home/Fond du Lac/Family Medicine/Primary Care Doctors Near Me in Fond Du Lac, WI - Ascension

About

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Clinic Type

Family Medicine

Address

1855 S Koeller St, Oshkosh, WI 54902

Phone

(920) 223-7010

Email

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Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://healthcare.ascension.org/find-care/specialty/primary-care-doctors/fond-du-lac--wisconsin

Emergency Care

If you are experiencing a life-threatening emergency, call 911 or go directly to the ER.

Services Offered

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Team

Katherine Hartstern, MD — Physician
Rebecca L Ott, APNP — Advanced Practice Nurse Practitioner
Andrea L Verhagen, APNP — Advanced Practice Nurse Practitioner

Insurance & Payment

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Languages Spoken

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FAQs

I am looking for a Family Medicine clinic. What are the opening hours?

The page indicates 'Accepting new patients' and lists multiple entries but does not specify exact hours for the Koeller Street Family Medicine location.

What is the full street address for the Family Medicine clinic on Koeller Street?

1855 S Koeller St, Oshkosh, WI 54902.

What is the contact phone number for the Koeller Street Family Medicine clinic?

(920) 223-7010.

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Photos

What Patients Say

Overall sentiment across review platforms: mixed

Birdeye (Ascension Medical Group Deerwood Ave): 4.3/5 (68)
Birdeye (Ascension Medical Group Main St): 4.5/5 (408)
Ascension internal provider ratings: Varies by individual provider, generally 4.7-5.0/5 (Varies by provider)
WebMD (Individual Provider): 4.0/5 (7)

Patients praise

Generally high star ratings (often 4.7-5.0 on internal platforms)
Courteous front-desk and nursing staff reported in many reviews
Providers praised for being welcoming and thorough
High availability for scheduling appointments reported by some patients

Common complaints

Billing and insurance claim disputes
Long wait times for appointments and at facilities
Poor bedside manner or communication from some providers
Concerns regarding staff professionalism and responsiveness

"Whenever you call to make an appointment they are always available. There service is really good and the people there are so nice and welcoming."

— Birdeye User Review

"The billing discrepancy caused Dan and Helen Lococo over six months of emails, calls and sleepless nights while the couple pushed for answers from Ascension."

— Journal Sentinel/Public Investigator

"Awful. Unprofessional. Doesn’t explore all options and isn’t friendly."

— WebMD User Review

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026. Own this clinic? Claim or correct this listing.