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

Stephen M Koller, MD

Individual provider Diagnostic Radiology Physician · NPI 1538197421

Stephen M Koller, MD is a Diagnostic Radiology in Middlebury, Vermont. Graduated from University of Vermont College of Medicine in 1991, 35 years ago. Practices with Porter Hospital Inc, a 114-clinician group and accepts Medicare assignment. Licensed in Vermont.

Years since qualifying
35
Trained at
University of Vermont College of Medicine
Licensed in
VT
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

115 Porter Dr Radiology Dept
Middlebury, VT 05753-8423
Phone: (802) 388-8851
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 042-0009220 (VT)

Record details

NPI number1538197421
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 29, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1119 Basin Harbor Rd, Bridport, VT 05734-9570

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF VERMONT COLLEGE OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Porter Hospital Inc — 114 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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