Individual provider · Type 1 NPI

Croix Fossum, MD

Radiation Oncology Physician · San Diego, CA

NPI number 1104351006 Active

Practice location

7901 Frost St
San Diego, CA 92123-2701

Call (858) 939-5010 Map

Fax (858) 939-5021

Mailing address

PO Box 509015, Dept 338
San Diego, CA 92150-9015

Other practice locations

  • 5555 Grossmont Center Dr, La Mesa, CA 91942-3019 · (619) 740-4500
  • 769 Medical Center Ct, Chula Vista, CA 91911-6602 · (619) 502-5851

Specialties and licenses

TaxonomyCodeLicense
Radiation Oncology Physician Primary 2085R0001XA159160 (CA)

Radiation Oncology Physician: A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

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About NPI 1104351006

Croix Fossum, MD's National Provider Identifier is 1104351006, issued on Apr 28, 2017. The primary taxonomy on file is Radiation Oncology Physician (2085R0001X), and the practice location is in San Diego, CA. The record was last updated on Feb 18, 2026.