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

Dr. Gregory D Osmundson, MD

Individual provider Glaucoma Specialist (Ophthalmology) Physician · NPI 1255391801

Dr. Gregory D Osmundson, MD is an Ophthalmology in Sioux Falls, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 1994, 32 years ago. Practices with Ophthalmology Ltd, a 13-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
32
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
SD
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

6601 S Minnesota Ave Ste 200
Sioux Falls, SD 57108
Phone: (605) 336-6294
Fax: (605) 336-0266
Show map & directions

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

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 4573 (SD)
Glaucoma Specialist (Ophthalmology) Physician Taxonomy 207WX0009X · Licence 4573 (SD)

Record details

NPI number1255391801
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2006
Last updated in NPPESJune 11, 2026
Certification dateJune 11, 2026

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 1994 (32 years in practice)
Group practice Ophthalmology Ltd — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare