DAVID SEGARNICK, PHD appears in the CMS NPPES registry as a Clinical Pharmacology Physician provider holding PHD credentials at 185 S ORANGE AVE, NEWARK, NJ, 07103, with a listed phone of (201) 919-1202. NPI 1437030350 was issued on 09/09/2025. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SEGARNICK 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Clinical Pharmacology Physician providers operate outside Part D entirely.

Clinical Pharmacology Physician is a narrow specialty nationwide, with 177 enrolled providers across 45 states and an average of 260 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.