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

Dr. Benjamin John Ernst, MD

Individual provider Ophthalmology Physician · NPI 1518162247

Dr. Benjamin John Ernst, MD is an Ophthalmology in Appleton, Wisconsin. Graduated from Saint Louis University School of Medicine in 2006, 20 years ago. Practices with Northeast Wisconsin Retina Associates SC, a 7-clinician group and accepts Medicare assignment. Licensed in Colorado and Wisconsin.

Years since qualifying
20
Trained at
Saint Louis University School of Medicine
Licensed in
CO, WI
In the registry since
2007
Specialties on file
2
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

442 N Westhill Blvd Ste A
Appleton, WI 54914-5830
Phone: (920) 751-8666
Show map & directions

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

Specialties & licences

Retina Specialist (Ophthalmology) Physician (primary) Taxonomy 207WX0107X · Licence 57459020 (WI)
Ophthalmology Physician Taxonomy 207W00000X · Licence 48790 (CO)

Record details

NPI number1518162247
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2007
Last updated in NPPESSeptember 21, 2023
Certification dateSeptember 21, 2023
Mailing address442 N Westhill Blvd Ste A, Appleton, WI 54914-5830

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Northeast Wisconsin Retina Associates Sc — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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