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

Dr. John L. Lederer, MD

Individual provider Radiation Oncology Physician · NPI 1740253327

Dr. John L. Lederer, MD is a Radiation Oncology in Honolulu, Hawaii. Graduated from Baylor College of Medicine in 1980, 46 years ago. Practices with Cancer Center of Hawaii LLC, a 6-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Hawaii.

Years since qualifying
46
Trained at
Baylor College of Medicine
Licensed in
HI
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

2226 Liliha St Ste B2
Honolulu, HI 96817-1605
Phone: (808) 547-6881
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 6681 (HI)

Record details

NPI number1740253327
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 13, 2006
Last updated in NPPESJune 17, 2025
Certification dateJune 17, 2025
Mailing address2226 Liliha St Ste 300, Honolulu, HI 96817-1605

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice Cancer Center Of Hawaii Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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