Individual provider · Type 1 NPI

Maria O. Ortiz Castillo, MD

Hospitalist Physician · Pasadena, CA

NPI number 1811298516 Active

Practice location

100 W California Blvd
Pasadena, CA 91105-3010

Call (626) 397-8300 Map

Mailing address

PO Box 512185
Los Angeles, CA 90051-0185

Other practice locations

  • 1414 S Grand Ave Ste 100, Los Angeles, CA 90015 · (213) 481-2200
  • 880 S Atlantic Blvd, Suite 101, Monterey Park, CA 91754-4700 · (626) 281-6969
  • 1500 Duarte Rd, Duarte, CA 91010-3012 · (626) 256-4673

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician 207R00000XA121001 (CA)
Hospitalist Physician Primary 208M00000XA121001 (CA)

Hospitalist Physician: Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

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About NPI 1811298516

Maria O. Ortiz Castillo, MD's National Provider Identifier is 1811298516, issued on Nov 11, 2010. The primary taxonomy on file is Hospitalist Physician (208M00000X), and the practice location is in Pasadena, CA. The record was last updated on Jul 15, 2026.