OCS Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from OCS, Medical Service, Bay City, MI.

OCS is a regional Case Management Company that offers health care resources and cost containment strategies to our customers using the highest standards in the most cost effective manner.

We’re hiring! RN Case Manager Opportunity for the Lansing Area.Looking for a new path in nursing? Join us as a Case Mana...
04/07/2026

We’re hiring! RN Case Manager Opportunity for the Lansing Area.

Looking for a new path in nursing? Join us as a Case Manager and help guide individuals through their care journey.
Apply today!

JOB APPLICATION

OCS will be closed on Friday, April 3, in observance of Good Friday. We will reopen on Monday, April 6. Wishing you a jo...
04/03/2026

OCS will be closed on Friday, April 3, in observance of Good Friday. We will reopen on Monday, April 6. Wishing you a joyful and peaceful Easter!

As March comes to a close, we recognize Brain Injury Awareness Month. At OCS, we’re passionate about supporting individu...
04/01/2026

As March comes to a close, we recognize Brain Injury Awareness Month. At OCS, we’re passionate about supporting individuals injured at work or in auto accidents, including those living with brain injuries. Through our Occupational Therapy and Case Management services, we are committed to helping our clients navigate recovery, regain independence, and access the resources they need.

This National Social Work Month, we’d like to recognize Cait, LMSW, CWCP, and Taylor, LBSW, WIDP, for the incredible wor...
03/26/2026

This National Social Work Month, we’d like to recognize Cait, LMSW, CWCP, and Taylor, LBSW, WIDP, for the incredible work they do as case managers in their communities.

Every day, they go above and beyond to support clients recovering from work and auto-related injuries— helping them navigate care, access resources, and move forward with confidence. Their compassion, dedication, and advocacy make a meaningful difference in the lives of so many. Thank you, Cait and Taylor!

We’re proud to share that OCS has officially received our renewed certifications as a Woman-Owned Small Business (WOSB) ...
03/24/2026

We’re proud to share that OCS has officially received our renewed certifications as a Woman-Owned Small Business (WOSB) and a National Women’s Business Enterprise (WBE)!

Thank you to the Women’s Business Enterprise National Council for continuing to support and recognize women-owned businesses. We’re excited to keep growing, learning, and providing exceptional services.

We look forward to our March Madness event every year and it just keeps getting better! The MSU win makes it even more f...
03/20/2026

We look forward to our March Madness event every year and it just keeps getting better! The MSU win makes it even more fun. A big thank you to our pals at Sherlock Investigations for cohosting! How’s everyone’s bracket looking?

Huge shoutout to our Laura Guist!She’s truly doing it all. Recently, she stepped in to  help a new client by taking the ...
03/15/2026

Huge shoutout to our Laura Guist!
She’s truly doing it all. Recently, she stepped in to help a new client by taking the call. She connected the employer with an OCS case manager to do what they do best— provide guidance, resources, and solutions.

This is what our teamwork and client advocacy looks like. Thank you, Laura!

Thank you to the Grand Rapids Adjusters Association for hosting trivia night. Proud to have this group representing OCS....
03/13/2026

Thank you to the Grand Rapids Adjusters Association for hosting trivia night. Proud to have this group representing OCS. Trivia category for us? Case management, of course!
What would your trivia topic be?

Here’s your friendly reminder to spring forward and stay on schedule! Set your clocks forward one hour before bed so you...
03/07/2026

Here’s your friendly reminder to spring forward and stay on schedule! Set your clocks forward one hour before bed so you’re ready for the week ahead. A little less sleep, but a lot more daylight!

Happy March ☀️ Taylor, Case Manager, has been out and about across Western Michigan, connecting with community partners ...
03/05/2026

Happy March ☀️
Taylor, Case Manager, has been out and about across Western Michigan, connecting with community partners and spreading the word about our services. Nothing like a little Michigan sunshine to make marketing on the road even better!

OCS Annual Wellness Challenge 💪🏼We had a healthy February and couldn’t be prouder of our team for prioritizing their wel...
03/01/2026

OCS Annual Wellness Challenge 💪🏼
We had a healthy February and couldn’t be prouder of our team for prioritizing their wellness so they can continue showing up for our clients — plus the most buff OCS pups!

Address

Bay City, MI
48708

Opening Hours

Monday 9am - 4:30pm
Tuesday 9am - 4:30pm
Wednesday 9am - 4:30pm
Thursday 9am - 4:30pm
Friday 9am - 4:30pm

Telephone

+18775321144

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