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

Dr. Larry D Deffenbaugh, DO

Individual provider Gastroenterology Physician · NPI 1447290622

Dr. Larry D Deffenbaugh, DO is a Gastroenterology in Carthage, Missouri. Graduated from University of Kansas School of Med (KC/WICH/SAL) in 1974, 52 years ago. Practices with Mercy Clinic Joplin LLC, a 295-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
52
Trained at
University of Kansas School of Med (KC/WICH/SAL)
Licensed in
MO
In the registry since
2006
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

3114 Medical Park Dr
Carthage, MO 64836-1211
Phone: (620) 783-2430
Show map & directions

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

Additional practice locations (1)

  • 198 Four States Dr, Galena, KS 66739-4305 — (417) 782-4701

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence R6321 (MO)

Record details

NPI number1447290622
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 7, 2006
Last updated in NPPESOctober 13, 2021
Certification dateOctober 13, 2021
Mailing address3114 Medical Park Dr, Carthage, MO 64836-1211

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolUNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated 1974 (52 years in practice)
Group practice Mercy Clinic Joplin Llc — 295 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare