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Celia Lenarz-Geisen, MD

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Phone Numbers
For Emergencies, Please Dial 911
Main Phone: 970.267.9510
Appointments: 970.482.2515
Phone Nurse: 970.267.6715
Poison Control: 800.222.1222
Billing Office: 970.679.9399
Fax Number: 970.207.9967

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Oak Park Drive Office
1214 Oak Park Dr.
Fort Collins, CO 80525

Phone: (970) 267-9510
Fax: (970) 207-9967

Monday – Thursday:
8:00 am – 4:30 pm
Friday: 8:00 am – 2:00 pm
Saturday & Sunday: Closed

East Elizabeth Office
1200 East Elizabeth St.
Fort Collins, CO 80524

Phone: (970) 267-9510
Fax: (970) 207-9967

Monday – Thursday:
8:00 am – 4:30 pm
Friday: 8:00 am – 2:00 pm
Saturday & Sunday: Closed

MCR South Medical
Office Building
2500 Rocky Mountain Ave. #260, Loveland, CO 80538

Phone: (970) 267-9510

Monday – Thursday:
8:00 am – 4:30 pm
Friday: 8:00 am – 2:00 pm
Saturday & Sunday: Closed

Timnath Office
4845 Weitzel St., Ste. 101
Timnath, CO 80547

Phone: (970) 267-9510
Fax: (970) 207-9967

Monday – Friday:
8:00 am – 3:00 pm
Saturday & Sunday: Closed