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

Dr. Richard B Trimble, MD

Individual provider Internal Medicine Physician · NPI 1568579738

Dr. Richard B Trimble, MD is an Internal Medicine Physician in Mason City, Iowa. Licensed in Iowa. Registered with an NPI since 2006.

Licensed in
IA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1000 4th St SW Ste IM
Mason City, IA 50401-2800
Phone: (641) 422-6999
Fax: (641) 422-6678
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 18911 (IA)

Record details

NPI number1568579738
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 24, 2006
Last updated in NPPESJuly 8, 2007
Mailing address621 S Illinois Ave, Suite 103, Mason City, IA 50401-5489

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