Penelope Zeifert, PHD

With 19 years of practice, Penelope Zeifert is an established clinical psychologist provider, PHD, after earning their medical degree at Other in 1990. Penelope currently practices across 4 facilities, including Stanford Health Care in Stanford, California. Their National Provider Identifier (NPI) is 1093841611, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.

CMS Medicare data shows Penelope Zeifert as a lower-volume clinical psychologist provider, treating approximately 54 Medicare beneficiaries and delivering 563 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.