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

Dr. James David Demmel, MD

Individual provider Family Medicine Physician · NPI 1811985559

Dr. James David Demmel, MD is a Family Medicine Physician in Marshalltown, Iowa. Licensed in Iowa. Registered with an NPI since 2005.

Licensed in
IA
In the registry since
2005
Specialties on file
2
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

312 E Main St
Marshalltown, IA 50158-1888
Phone: (641) 752-5469
Fax: (641) 844-2205
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 27203 (IA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 27203 (IA)

Record details

NPI number1811985559
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 6, 2005
Last updated in NPPESJuly 20, 2012
Mailing address312 E Main St, Marshalltown, IA 50158-1888

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