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Search › California › 2085R0203X

Ralph Hanahan, M.D

NPI 1801986641 · on the registry since 2006

Practice

Address
3555 Round Barn Cir
Santa Rosa, CA 95403
Phone
(707) 522-6875
Fax
(707) 576-0445
Organisation at this address
St Jude Hospital Yorba Linda
St Jude Hospital Yorba Linda
Redwood Regional Medical Group Inc
Redwood Regional Medical Group, Inc.
Redwood Regional Medical Group, Inc.
Inferred from a shared address, not stated in the registry.
Clinicians at this address
15

Registry record

Primary taxonomy
2085R0203X
2085R0203X
Also registered as
2085R0001X
Licence states on file
CA
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2025-09-11

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