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

Dr. Fen Xia, MD, PHD

Individual provider Radiation Oncology Physician · NPI 1134156052

Dr. Fen Xia, MD, PHD is a Radiation Oncology in Little Rock, Arkansas. Qualified in 1983, 43 years ago. Practices with Proton International Arkansas, LLC, an 8-clinician group and accepts Medicare assignment. Licensed in Arkansas and Ohio.

Years since qualifying
43
Licensed in
AR, OH
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

4301 W Markham St # 771
Little Rock, AR 72205-7101
Phone: (501) 526-7458
Fax: (501) 686-7285
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-10009 (AR)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 35.097750 (OH)

Record details

NPI number1134156052
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 27, 2006
Last updated in NPPESMarch 17, 2022
Certification dateMarch 17, 2022

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 Proton International Arkansas, Llc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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