SIERRA STARR, MD appears in the CMS NPPES registry as a Complex Family Planning Physician provider holding MD credentials at 3300 MAIN STREET, SPRINGFIELD, MA, 01107, with a listed phone of (413) 794-7045. NPI 1891256319 was issued on 03/27/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STARR 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 27 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $592 in drug spend. 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.

Complex Family Planning Physician is a narrow specialty nationwide, with 53 enrolled providers across 20 states and an average of 31 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.