Main Office:

Phone: (602) 633-3800

Fax: (602) 861-3500

Billing Department Contact Information for both Western and Pinnacle Pathology is:

Hours: Monday thru Friday 8:00 am – 4:30 pm
*Excluding Holidays

Phone: (602) 633-3800 –or- 3801
English – Option 3
Espanol – Option 4

Fax: Attn Patient Billing Inquiries
(602) 861-3500
*Please include Account Number, Date of Service and DOB

Email: See contact form below

Mailing Addresses:
Western Pathology Assoc., Ltd
9250 N 3rd Street, Suite 4000
Phoenix, AZ 85020

Mailing Addresses:
Pinnacle Pathology, PC
PO Box 47270
Phoenix, AZ 85068-7270


You can request a copy of your pathology report and other materials by downloading the form here, and mailing or faxing it to Western and Pinnacle Pathology.


You can pay your bill online by clicking one of the following links.

Make sure to select the link that corresponds with the billing entity on your invoice.  Do not combine entity billing balances and pay both on one entity.

For Western Pathology, click here.
For Pinnacle Pathology, click here.


Please use contact form below for billing inquiries. You can also click here for general inquiries or click here for client services inquiries.
*Please do not email sensitive information such as SSN or Credit Card info.