B. David C. Pratt Cancer Center
607 S. New Ballas Road, Suite 2330
St. Louis, MO 63141
Phone: 314-251-6933, extension 27338
Fax: 314-251-6630
Hours: 7 a.m. to 4:30 p.m., Monday - Friday
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C. St. John's Mercy Heart Hospital
625 S. New Ballas Road, Suite 2500
St. Louis, MO 63141
Phone: 314-251-1023
Fax: 314-251-1140
Hours: 7 a.m. to 4:30 p.m., Monday - Friday
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D. Center for New Health Options
1176 Town and Country Commons
Chesterfield, MO 63017
Phone: 636-207-2200
Fax: 636-207-2201
Hours: 7 a.m. to 5 p.m., Monday - Friday
8 a.m. to noon, Saturday
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E. St. John's Mercy Medical Office Building
12680 Olive Blvd., Suite 140
St. Louis, MO 63141
Phone: 314-251-8919
Fax: 314-251-8918
Hours: 7 a.m. to 5 p.m., Monday - Friday
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F. St. John's Mercy Medical Office Building
16555 Manchester Road
Suite 105
Grover, MO 63040
Phone: 636-458-4416
Fax: 636-405-1441
Hours: 7:30 a.m. to 5 p.m., Monday - Friday (Closed noon to 1 p.m.)
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South County:

G. St. John's Mercy Medical Office Building
10024 Watson Road
St. Louis, MO 63126
Phone: 314-919-2538
Fax: 314-919-2540
Hours: 7 a.m. to 6 p.m., Monday
7 a.m. to 5 p.m., Tuesday - Friday
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H. St. John's Mercy Medical Office Building
12348 Old Tesson Road
Suite 140
St. Louis, MO 63128
Phone: 314-467-3838
Fax: 314-467-3840
Hours: 7 a.m. to 5 p.m., Monday - Friday
8 a.m. to noon, Saturday
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I. St. John's Mercy Medical Office Building
1203 Smizer Mill Road, Suite 107
Fenton, MO 63026
Phone: 636-717-1376
Fax: 636-717-1372
Hours: 7 a.m. to 5 p.m., Monday - Friday
8 a.m. to Noon, Saturday
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North County

J. St. John's Mercy Medical Office Building
801 Hazelwest Drive, Suite 300
Hazelwood, MO 63042
Phone: 314-919-2738
Fax: 314-919-2740
Hours: 7 a.m. to 5 p.m., Monday - Friday
8 a.m. to noon, Saturday
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K. Florissant Meadows Shopping Center
572 Highway 67
Florissant, MO 63031
Phone: 314-972-9994
Fax: 314-972-9995
Hours: 7 a.m. to 5 p.m., Monday - Friday
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St. Charles County

L. St. John's Mercy Medical Office Building
107 Piper Hill Drive, Suite 110
St. Peters, MO 63376
Phone: 636-477-7047
Fax: 636-498-0402
Hours: 7 a.m. to 6 p.m., Monday - Friday
8 a.m. to 6 p.m., Saturday - Sunday (in Urgent Care, Suite 100)
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M. St. John's Mercy Urgent Care
300 Winding Woods Drive, Suite 208
O'Fallon, MO 63366
Phone: 636-379-4347
Fax: 636-379-4332
Hours: 7 a.m. to 5 p.m., Monday - Friday (After hours, please proceed to the Urgent Care Center)
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N. St. John's Mercy Medical Office Building
2740 Highway 94 South, Suite C
St. Charles, MO 63303
Phone: 636-477-0070
Fax: 636-477-0071
Hours: 7 a.m. to 5 p.m., Monday - Friday
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Franklin County

O. St. John's Mercy Hospital - Washington
901 E. Fifth Street, 1st Floor Main Lab
Washington, MO 63090
Phone: 636-239-8292
Fax: 314-569-6731
Hours: 24 hours per day, 7 days a week
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P. Mercy Doctors Building Outpatient Center
851 E. Fifth St., 1st Floor
Washington, MO 63090
Phone: 636-239-8255
Fax: 636-239-8267
Hours: 7 a.m. to 5 p.m., Monday - Friday
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Q. St. John's Mercy Medical Office Building
1935 Prairie Dell Road, Suite 400
Union, MO 63084
Phone: 636-583-2508, ext. 128
Fax: 636-583-4862
Hours: 8 a.m. to 5 p.m., Monday - Friday (Closed noon to 1 p.m.)
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