Monthly Archives

December 2025

General Information, Southwest Michigan, West Michigan

Outpatient Laboratory Hours of Operation Update

Effective January 1, 2026, the following outpatient laboratory (PSC’s) hours will be updated.

 

Corewell Health Big Rapids Hospital Laboratory   

605 Oak St., Big Rapids, 49307

Monday to Friday: 6:30 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Gerber Hospital Laboratory – Newaygo

211 W. Pine Lake Drive, Newaygo, 49337

Monday to Thursday: 7 a.m. to noon.,12:30 p.m. to 3 p.m.; Friday: 7 a.m. to noon

 

Corewell Health Greenville Hospital Laboratory

615 S. Bower St., Greenville, 4883

Monday to Friday: 6:30 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Greenville Hospital Laboratory – Lakeview 

8650 W Howard City-Edmore Road, Lakeview, 48850

Monday to Friday: 7 a.m. to 3:30 p.m.; Saturday: 8 a.m. to noon

 

Corewell Health Lakeland Hospitals Laboratory – Niles   

31 N. St. Joseph Ave., Niles, 49120

Monday to Friday: 6:30 a.m. to 5 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Pennock Hospital Laboratory

1009 W. Green St., Hastings, 49058

Monday to Friday: 6 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Pennock Hospital Laboratory – Lake Odessa 

4294 Laurel Drive, Lake Odessa, 48849

Monday to Friday: 7 a.m. to 3 p.m.

 

Corewell Health Reed City Hospital Laboratory

300 N. Patterson Road, Reed City, 49677

Monday to Friday: 6:30 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

 

Corewell Health Watervliet Hospital Laboratory 

400 Medical Park Drive, Watervliet, 49098

Monday to Friday: 7 a.m. to 3:30 p.m.

 

Corewell Health Zeeland Hospital Laboratory

8333 Felch St., Zeeland, 49464

Monday to Friday: 6 a.m. to 6 p.m.; Saturday: 7 a.m. to 11 a.m.

Continue Reading

Referral/Sendouts

Send Out Referral Testing Update: Phase Two Transition to Quest Diagnostics

Go-Live Date: December 17, 2025

Following Phase One in November, where tests previously referred to ARUP and some Mayo Clinic Lab tests were transitioned to Quest Diagnostics, we are now moving into Phase Two of this important change. Corewell Health Laboratory is continuing its transition to Quest Diagnostics as our primary reference testing partner.

Continue Reading