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

Dr. John Joseph Hartmann, DO

Individual provider Specialist · NPI 1154394989

Dr. John Joseph Hartmann, DO is a Specialist in Dubuque, Iowa. Licensed in Iowa. Registered with an NPI since 2006.

Licensed in
IA
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

1500 Delhi St Ste 4100
Dubuque, IA 52001-6358
Phone: (563) 557-5900
Fax: (563) 557-5905
Show map & directions

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

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 01794 (IA)

Record details

NPI number1154394989
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 10, 2006
Last updated in NPPESMay 26, 2010
Mailing address1500 Delhi St, Ste 4100, Dubuque, IA 52001-6358

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