DoctorDataHub
Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.

JOHN K MA, MD, PHD

Active

JOHN K MA, MD, PHD is a Radiation Oncology healthcare provider located in TOPEKA, Kansas. NPI 1205067758 is currently active in the NPPES registry. Verify at CMS.

Radiation Oncology · TOPEKA, KS

Registration Details

NPI Number
1205067758
Provider Type
Individual
Gender
Male
NPI Issued
Jul 31, 2009 (17.001385307637 yrs)
Last Updated
Feb 13, 2026
License
04 37990 (KS)

Practice Information

Address
1414 SW 8TH AVE
TOPEKA, KS, 666061535
Browse KS providers · Browse ZIP 66606
Phone
7853545300
Primary Specialty
Radiation Oncology
2085R0001X

Other Radiation Oncology Providers in TOPEKA, KS

Name Credential NPI
DR. JUDITH ANN KOOSER M.D. 1356386031
DR. RALPH DANIEL REYMOND M.D. 1932135209
DR. RUSSELL EDWARD GREENE M.D. 1588693832
DR. STEPHEN D COON M.D. 1528098126
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.