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

Douglas J Jergenson, MD

Individual provider Internal Medicine Physician · NPI 1689678344

Douglas J Jergenson, MD is an Internal Medicine Physician in Clinton, Iowa. Licensed in Iowa. Registered with an NPI since 2005.

Licensed in
IA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

221 Main Ave
Clinton, IA 52732-2241
Phone: (563) 242-7522
Fax: (563) 242-7534
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 22254 (IA)

Record details

NPI number1689678344
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 10, 2005
Last updated in NPPESOctober 13, 2007
Mailing address221 Main Ave, Clinton, IA 52732-2241

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