PhenoPath, PLLC
551 North 34th St, Suite 100
Seattle, Washington 98103-8675

General Inquiries
lab@phenopath.com
Phone: 206.374.9000
Toll-free: 888.92.PHENO (888.927.4366)

Patient Billing Inquiries
For Patient Customer Service: 1.866.450.7032
For Client Billing inquiries: DallasClientBilling@questdiagnostics.com

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