Karynne Duncan
- Verification result
- Current license matched
- Credential
- Physician and Surgeon G (credential from the state license record)
- California license status
- California Medical License: Current
- License number
- 86640
- License expires
- September 2028
- NPI
- No NPI record matched
- Role stated by clinic
- dermatologist
- Checked
- Verified October 17, 2026
View verification evidence
Clinic-reported
- Clinic-stated role
- dermatologist
- Credential
- Physician and Surgeon G (credential from the state license record)
- Named as medical director
- Not stated
- Named as an injector
- Not stated on the pages reviewed
- Clinic source
- skinlabnapavalley.co
- Date checked
- October 18, 2026
Dr. Karynne Duncan,
Federal provider record
No NPI record was matched for this name. An NPI is a billing identifier, and it says nothing about the state license check below.
State professional license
- Credential
- None stated by the clinic
- State license
- Physician and Surgeon G, Medical Board of California
- License number
- 86640
- Status
- Current
- Expires
- September 2028
- Checked
- October 17, 2026
Board action recorded: Not published by this board.
Physician and Surgeon G license 86640; KARYNNE O'CONNELL DUNCAN; status: Current; expires 2028-09-30; issued 2002-09-06; board action: not published by this register; city SAINT HELENA; ca-mbc published 2026-10-01, MedicalBoard_Data00.xls row 209138
State data published October 1, 2026.
Verification finding
- Result
- Current license matched (Current)
SkinCeuticals SkinLab™ Napa Valley names Dr. Karynne Duncan with the stated role dermatologist. Verified Injector matched this clinician to license 86640 at the Medical Board of California, which that board recorded as Current when checked October 17, 2026.