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

Mark A Barnhill, DO

Individual provider Pediatrics Physician · NPI 1396721676

Mark A Barnhill, DO is a Pediatrics Physician in Johnston, Iowa. Licensed in Iowa. Registered with an NPI since 2005.

Licensed in
IA
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

8101 Birchwood Ct Ste N
Johnston, IA 50131-2930
Phone: (515) 471-9243
Fax: (515) 471-9319
Show map & directions

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

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 01667 (IA)

Record details

NPI number1396721676
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedDecember 19, 2005
Last updated in NPPESMay 22, 2012

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