SearchCaliforniaHospitalist Physician

Maria Ortiz Castillo, M.D

NPI 1811298516 · on the registry since 2010 · sole proprietor

Practice

Address
100 W California Blvd
Pasadena, CA 91105
Phone
(626) 397-8300
Organisation at this address
Edward Kwon Md Inc
Huntington Hospital
James P Blitz Md Inc
Danielle Lu, Md, Inc.
Lauren Obrien Md, Inc
Inferred from a shared address, not stated in the registry.
Clinicians at this address
375

Additional practice sites

  • 1500 Duarte Rd, Duarte, CA
  • 880 S Atlantic Blvd, Monterey Park, CA
  • 1414 S Grand Ave Ste 100, Los Angeles, CA

Registry record

Primary taxonomy
Hospitalist Physician
208M00000X
Also registered as
Internal Medicine Physician
Licence states on file
CA
From the registry's licence fields, which are often incomplete.
Sex
Female
Record last updated
2026-07-15

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