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Otto Kaiser Patient Portal
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This is a picture of a lab with veils of blood on a table Laboratory

Otto Kaiser Memorial Hospital Laboratory offers outpatient testing. You must have an order from your physician and we gladly accept orders from out of town physicians.

Most testing is performed daily with results available to your physician that same day. Other laboratory testing is available through contract with quality reference laboratories.

Some testing requires fasting from 8 to 12 hours. Please check with your physician or the lab regarding fasting requirements.

Otto Kaiser Memorial Hospital laboratory is under the direction of board-certified pathologist, Dr. C. Leilani Valdes and accredited by the Commission on Office Laboratory Accreditation.

Lab Main Line: 830-583-4516
Lab Manager, Skye Acker: 830-583-4512.

Hours of Operation


Monday7a-5p
Tuesday7a-5p
Wednesday7a-5p
Thursday7a-5p
Friday7a-5p
SaturdayClosed
SundayClosed

Closed on Holidays