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

Gregory John Duncan, MD

Individual provider Orthopaedic Surgery Physician · NPI 1164459921

Gregory John Duncan, MD is an Orthopaedic Surgery Physician in Wrangell, Alaska. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
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

Zimovia Highway Mile 5.5
Wrangell, AK 99929-9992
Phone: (707) 951-9203
Show map & directions

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

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence A44032 (CA)

Record details

NPI number1164459921
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 27, 2006
Last updated in NPPESFebruary 9, 2023
Certification dateFebruary 2, 2023
Mailing addressPo Box 392, Wrangell, AK 99929-0392