Eric Berquist, D.O. appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding D.O. credentials at 2009 REED AVE, San Diego, CA, 92109, with a listed phone of (559) 960-7645. NPI 1023379997 was issued on 06/06/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Berquist 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 5,096 prescription claims written by this provider, covering 917 Medicare beneficiaries and totaling roughly $179K in drug spend, split 7% brand-name and 92% generic by claim count, with an opioid prescribing rate of 4.6%. 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.

Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,761 enrolled providers across 55 states and an average of 459 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.