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

John Ashton Armstrong, DO

Individual provider Internal Medicine Physician · NPI 1427679232

John Ashton Armstrong, DO is an Internal Medicine in Rolla, Missouri. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2020, 6 years ago. Practices with Pcrmc Medical Group Inc, a 114-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
6
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
MO
In the registry since
2020
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.

See every abbreviation used in this directory →

Practice location Address checks out

1050 W 10th St
Rolla, MO 65401-2905
Phone: (573) 364-9000
Show map & directions

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

Additional practice locations (3)

  • 1000 W 10th St, Rolla, MO 65401-2905 — (573) 364-9000
  • 817 Oak Knoll Rd, Rolla, MO 65401-4715 — (573) 466-0228
  • 1000 Gw Ln, Waynesville, MO 65583-2339 — (573) 774-2715

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2023028809 (MO)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1427679232
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 3, 2020
Last updated in NPPESFebruary 27, 2024
Certification dateFebruary 27, 2024
Mailing address1050 W 10th St, Rolla, MO 65401-2905

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 2020 (6 years in practice)
Group practice Pcrmc Medical Group Inc — 114 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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