Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Leo Mascarenhas, MD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1417057225

Leo Mascarenhas, MD is a Hematology/Oncology in Los Angeles, California. Qualified in 1990, 36 years ago. Practices with Cedars-Sinai Medical Center, a 795-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
36
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

127 S San Vicente Blvd Fl 7
Los Angeles, CA 90048-3311
Phone: (310) 423-4423
Fax: (310) 423-4131
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 4650 W Sunset Blvd, Los Angeles, CA 90027-6062 — (323) 669-2121
  • 100 W California Blvd, Pasadena, CA 91105-3010 — (626) 397-5000
  • 8700 Beverly Blvd, West Hollywood, CA 90048-1804 — (310) 423-4423

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence A54324 (CA)

Record details

NPI number1417057225
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 22, 2006
Last updated in NPPESJuly 23, 2025
Certification dateJuly 23, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Cedars-Sinai Medical Center — 795 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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