Priority Me

We’re proud to call St. Marys home, and to have the privilege of caring for our friends and neighbors throughout the community.

The Grand Experience

Serving the Women in Auglaize, Mercer, Allen, and Shelby Counties

Mother. Daughter. Wife. Sister. Aunt. Grandmother. If you are a woman, you touch the lives of many people. You are special — and so are your healthcare needs.

At Grand Lake OB/GYN we understand how important it is to keep you healthy. That is why we have brought together the region's finest resources to care for women of all ages. From our highly skilled medical professionals to our comprehensive services to our uncompromising standards, we are second-to-none in serving the needs of women in the Grand Lake region. As part of Grand Lake Health System, we are convenient and accessible with offices in Celina, Minster, St. Marys and Wapakoneta.

Visiting our Birthing Center

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Office hours
Monday - Friday 8 a.m. - 5 p.m.
| Extended Hours Available

Contact Us

We welcome and encourage any questions you have. Whether you are a long-time customer of Grand Lake OB/GYN or new to the region and looking for a doctor for your healthcare needs, we are here to help. You are welcome to stop by any of our offices or send a message to you provider through Follow My Health Patient Portal.

For life-threatening emergencies, please dial 911

After Hours Urgencies call:

Joint Township District Memorial Hospital

419-394-3335 or toll free 877-564-6897

Please direct billing questions to

Grand Lake Physician Practices Billing Office at 419-394-9562.

Grand Lake OB/GYN


1140 S. Knoxville Ave. Suite B
St. Marys, OH 45885




801 Pro Drive, Suite D3
Celina, OH 45822




4 Eagle Drive
Minster, OH 45865




Our offices are conveniently located throughout the Grand Lake region at St. Marys, Wapakoneta and Celina. Please click on the map to download directions to the facilities or download the locations map for all the facilities within Grand Lake Health System.

Locations guide

For New Patients - Everything you need

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