Contact Us Phone Number: 616-669-4141 Fax Number: 616-669-2570 Email: General Inquiries - loosterman@dgkcpa.com   Office Hours:      8:30 am - 4:30 pm, Monday - Friday       8:30 am - noon, Saturday (Tax Season) Summer Hours:  8:30 am - 4:30 pm, Monday - Thursday                            8:30 am - noon, Friday