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

Rebecca Marie Aleck, DO

Individual provider Hospitalist Physician · NPI 1598030603

Rebecca Marie Aleck, DO is an Internal Medicine in Siloam Springs, Arkansas. Qualified in 2011, 15 years ago. Practices with Sebastian Physician Services, PLLC, a 41-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arkansas and Missouri.

Years since qualifying
15
Licensed in
AR, MO
In the registry since
2012
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

603 N Progress Ave
Siloam Springs, AR 72761
Phone: (479) 524-4141
Show map & directions

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

Additional practice locations (1)

  • 336 S Jefferson St, Neosho, MO 64850-1769 — (417) 455-4200

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence E-9279 (AR)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2014023583 (MO)

Record details

NPI number1598030603
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 22, 2012
Last updated in NPPESAugust 27, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Sebastian Physician Services, Pllc — 41 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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