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

Charles Earl Ahrens, MD

Individual provider Ophthalmology Physician · NPI 1356540827

Charles Earl Ahrens, MD is an Ophthalmology in Duluth, Minnesota. Graduated from Sanford School of Medicine of University of South Dakota in 2007, 19 years ago. Practices with St Luke's Hospital of Duluth, a 413-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
19
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
MN
In the registry since
2007
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

4190 Loberg Ave
Duluth, MN 55811-2652
Phone: (218) 249-4600
Fax: (218) 249-4666
Show map & directions

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

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 53850 (MN)

Record details

NPI number1356540827
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 16, 2007
Last updated in NPPESDecember 4, 2020
Certification dateDecember 4, 2020

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2007 (19 years in practice)
Group practice St. Luke'S Hospital Of Duluth — 413 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Duluth