William Callahan, MD

NPI 1538130513 · on the registry since 2006

Practice

Address: 120 Vantis
Suite 540
Aliso Viejo, CA 92656
Phone: (949) 916-5656
Fax: (949) 916-5657
Organisation at this address: Anthony M. Kassir, M.D., A Professional Medical Corporation
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 3

Registry record

Primary taxonomy: Psychiatry
2084P0800X
Licence states on file: CA
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2007-07-08

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California