HealthCareAtlasUSA

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Doctors / CA

LEO E ORR, MD

HEMATOLOGY/ONCOLOGY

Medical school: BAYLOR COLLEGE OF MEDICINE

Graduated: 1969

Offers telehealth

NPI: 1730102286

Practice Locations (6)

THE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATION

11100 WARNER AVE, SUITE 214

FOUNTAIN VALLEY, CA 927087511

7145947820

THE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATION

3300 E S ST, SUITE 304

LAKEWOOD, CA 908054594

5622320550

THE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATION

1127 WILSHIRE BLVD, SUITE 900

LOS ANGELES, CA 900173910

2134813948

THE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATION

1513 S GRAND AVE, SUITE 360

LOS ANGELES, CA 900153465

2132462422

THE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATION

101 E BEVERLY BLVD, SUITE 200

MONTEBELLO, CA 906404315

3232784400

THE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATION

21605 HAWTHORNE BLVD, SUITE 200

TORRANCE, CA 905036618

3109354525

Source: CMS National Downloadable File, September 2026.

LEO ORR, MD | HealthCareAtlasUSA