DialClerk Directory

Labs and imaging

Mayo Clinic Laboratories

Phone, published email, fax, addresses and the next step for your office.

3 contact routesNo directory research calls placed

lab client services

Laboratory customer service

Official page read
Phone800-533-1710Fax

507-284-1759

Published email

mcl@mayo.edu

Mayo Clinic Laboratories customer-service questions

Published hours

24 hours a day

Product, plan and location

Confirm the exact product or service
National contact — confirm product and location

Mailing address

Not researched for this route

Reference-laboratory support, not the general Mayo Clinic appointment line.

View source ↗ · Source checked 2026-10-22

Report an update
Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

fax other

Laboratory medical-record release

Official page read
Phone507-284-3050Fax

507-284-1759

Published email

rstmclroi@mayo.edu

Mayo Clinic Laboratories release-of-information questions

Published hours

Monday–Friday 8 a.m.–5 p.m. Central

Product, plan and location

Confirm the exact product or service
National contact — confirm product and location

Mailing address
Mayo Clinic Laboratories Attn: MLI P.O. Box 4100 Rochester, MN 55905

Laboratory records-release correspondence

Use the required authorization process. This is not the records address for every Mayo Clinic facility.

View source ↗ · Source checked 2026-10-22

Report an update
Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

lab client services

International laboratory client services

Official page read
Phone855-379-3115Published email

mliintl@mayo.edu

International laboratory client support

Published hours

Not published in this record

Product, plan and location

Confirm the exact product or service
National contact — confirm product and location

Mailing address

Not researched for this route

View source ↗ · Source checked 2026-10-22

Report an update
Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

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