CHRISTOPHER AHERN, D.O. appears in the CMS NPPES registry as a Hospice and Palliative Medicine (Internal Medicine) Physician provider holding D.O. credentials at ONE MEDICAL CENTER DRIVE, LEBANON, NH, 03756, with a listed phone of (860) 358-6486. NPI 1124405352 was issued on 04/27/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AHERN 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 319 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $24K in drug spend, split 21% brand-name and 79% generic by claim count, with an opioid prescribing rate of 50.5%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 69.4014/100 for the 2023 performance year (Quality 55.6429, Cost 42.3618), compared with the national average of 83.1.

Hospice and Palliative Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 1,524 enrolled providers across 51 states and an average of 1,275 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.