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

Mr. Gregory D Naden, MD

Individual provider Radiation Oncology Physician · NPI 1588649396

Mr. Gregory D Naden, MD is a Radiation Oncology in Mountain Home, Arkansas. Qualified in 1983, 43 years ago. Practices with Highlands Oncology Group PA, a 77-clinician group and accepts Medicare assignment. Licensed in Arkansas and Iowa.

Years since qualifying
43
Licensed in
AR, IA
In the registry since
2005
Specialties on file
2
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

639 Hospital Dr
Mountain Home, AR 72653-2914
Phone: (479) 587-1700
Fax: (479) 587-1366
Show map & directions

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

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence E-15710 (AR)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 36068 (IA)

Record details

NPI number1588649396
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 14, 2005
Last updated in NPPESJuly 6, 2026
Certification dateJuly 6, 2026

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Group practice Highlands Oncology Group Pa — 77 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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