The partners at Pediatric Partners have decided to make it easier for families to find the products we often recommend. We are doing this through Metagenics. ... 7450 W 135th Street Overland Park, KS 66223. Main: 913-888-4567. Fax: 913-888-1277. Billing: 913-825-0923. ... My kids have been Pediatric Partners patients since birth - over 18 years ....