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

John A Hartman, DO

Individual provider Internal Medicine Physician · NPI 1225032832

John A Hartman, DO is an Internal Medicine in Farmington, Missouri. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1983, 43 years ago. Practices with Washington County Memorial Hospital, a 23-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
43
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
MO
In the registry since
2005
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

1103 Weber Rd Ste 101
Farmington, MO 63640-3326
Phone: (573) 756-6438
Fax: (573) 756-6439
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence R5E40 (MO)

Record details

NPI number1225032832
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 10, 2005
Last updated in NPPESJuly 13, 2026
Mailing addressP.O. Box 857, Farmington, MO 63640-3326

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 1983 (43 years in practice)
Group practice Washington County Memorial Hospital — 23 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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