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

Donald Joseph Keller, MD

Individual provider Ophthalmology Physician · NPI 1275570038

Donald Joseph Keller, MD is an Ophthalmology in Boulder, Colorado. Graduated from University of Nebraska College of Medicine in 1991, 35 years ago. Practices with Eye Center of Northern Colorado PC, a 67-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
35
Trained at
University of Nebraska College of Medicine
Licensed in
CO
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

4745 Arapahoe Ave #100
Boulder, CO 80303-1080
Phone: (303) 444-3000
Fax: (303) 444-3226
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 34505 (CO)

Record details

NPI number1275570038
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 1, 2006
Last updated in NPPESJuly 30, 2026
Certification dateJuly 30, 2026

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Eye Center Of Northern Colorado Pc — 67 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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