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TOPA Diagnostics has provided pathology and cytology services to the medical community – including physician offices, hospitals, endoscopy facilities, surgery centers and radiology facilities – for over 20 years. Working closely with our clinical colleagues, we understand that clinical correlation is essential to providing you the information you need to effectively treat patients. That is why we value close communication and are always available to discuss pathology findings on your patients.

Hours of operations:

Specimen Drop Off hours: 8am to 6pm M-F, Sat 10am to 2pm.  Sun Closed. 

Client services phone hours: M-F 7am to 530pm

Billing inquiry phone hours: M-F 730am to 4pm

Saturday phone hours: 10am to 2pm


Laboratory operation hours: M-F 4am to 10pm, Sat 730am to 6pm, Sun Closed.


Holidays TOPA is closed:

New Years day

Memorial day

Independence day

Labor day

Thanksgiving day

Christmas day

If the holiday falls on a Friday, TOPA will be closed on Friday, but open on Saturday.

If the holiday falls on a Saturday, TOPA will be closed on Friday, Saturday, Sunday (rarely happens)

If the holiday falls on a Sunday, TOPA will be closed on Monday

If the Holiday falls on any other day of the week, TOPA will be closed that day.


TOPA Diagnostics offers extensive connectivity options tailored specifically to your practice.

Extensive report delivery and connectivity options are offered, customized to meet the needs of your practice. An interface specialist, on-site EMR/EHR integration and Meaningful Use support services are also available.


Delivering pathology & cytology services to the medical community for 20 years.

To learn more about how TOPA Diagnostics can fulfill your pathology testing needs, contact us today.