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

Dan N Olson, MD

Individual provider Internal Medicine Physician · NPI 1417981077

Dan N Olson, MD is an Internal Medicine in Cortland, Ohio. Graduated from University of Minnesota Medical School in 1974, 52 years ago. Practices with Trumbull Mahoning Medical Group, Inc, a 7-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
52
Trained at
University of Minnesota Medical School
Licensed in
OH
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

2600 State Route 5
Cortland, OH 44410-9393
Phone: (330) 372-8800
Fax: (330) 372-8999
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35045552 (OH)

Record details

NPI number1417981077
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 10, 2006
Last updated in NPPESApril 20, 2008
Mailing address2600 State Route 5, Cortland, OH 44410-9393

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1974 (52 years in practice)
Group practice Trumbull Mahoning Medical Group, Inc. — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Cortland