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

Johnny K Chang, MD

Individual provider Hematology & Oncology Physician · NPI 1366465304

Johnny K Chang, MD is a Hematology/Oncology in Tarzana, California. Graduated from University of California, Geffen School of Medicine in 1998, 28 years ago. Practices with Cedars-Sinai Medical Care Foundation, a 1,696-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
28
Trained at
University of California, Geffen School of Medicine
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

18133 Ventura Blvd Ste 300
Tarzana, CA 91356-3645
Phone: (818) 981-3818
Fax: (818) 784-3106
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 16133 Ventura Blvd, Encino, CA 91436-2402 — (818) 981-3818

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence A70618 (CA)

Record details

NPI number1366465304
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 25, 2006
Last updated in NPPESJuly 29, 2026
Certification dateJuly 29, 2026

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesMEDICAL ONCOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Cedars-Sinai Medical Care Foundation — 1696 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Tarzana