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

Dr. Patrick T Dunlay, DO

Individual provider Internal Medicine Physician · NPI 1811004294

Dr. Patrick T Dunlay, DO 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?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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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 02413 (IA)

Record details

NPI number1811004294
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 23, 2006
Last updated in NPPESApril 1, 2025
Certification dateApril 1, 2025
Mailing address621 S Illinois Ave, Suite 103, Mason City, IA 50401-5489

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