Karyn Austin, MD/PHD appears in the CMS NPPES registry as a Pediatric Cardiology Physician provider holding MD/PHD credentials at 1825 4TH ST FL 6, San Francisco, CA, 94143, with a listed phone of (415) 476-2719. NPI 1639564370 was issued on 03/31/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Austin 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 Pediatric Cardiology Physician providers operate outside Part D entirely. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.5/100 for the 2023 performance year, compared with the national average of 83.1.

Pediatric Cardiology Physician is a narrow specialty nationwide, with 2,529 enrolled providers across 51 states and an average of 77 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.