Ariel Mastrich, N.D. appears in the CMS NPPES registry as a Naturopath provider holding N.D. credentials at 3200 SE 164TH AVE STE 101, Vancouver, WA, 98683, with a listed phone of (360) 406-4884. NPI 1417208349 was issued on 10/02/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Mastrich most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 91 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $7K in drug spend, split 32% brand-name and 68% generic by claim count. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Naturopath is a mid-sized specialty nationwide, with 6,661 enrolled providers across 53 states and an average of 120 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.