Doctor profile · Federal record

Dr. Aaron Welk, D.M.D.

Endodontist · Tualatin, OR

  • NPI 1780685503
  • 21 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
18735 Sw Boones Ferry RD
Tualatin, OR 970628487
(503) 855-4546
fax (503) 427-2726

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
September 18, 2013
Specialty taxonomy
1223E0200X — NUCC code
State license (1)
Oregon #D7507

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780685503. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$67
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Septodont Inc. 1 $54.09
COLGATE ORAL PHARMACEUTICALS, INC. 1 $13.11

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$54
Education
$13

Frequently asked questions

Auto-generated from federal data
What is Dr. Aaron Welk's medical specialty?
Dr. Aaron Welk practices Endodontist in Tualatin, OR.
Where does Dr. Aaron Welk practice?
Dr. Aaron Welk practices at 18735 Sw Boones Ferry RD, Tualatin, OR 970628487. Office phone: 5038554546.
What is Dr. Aaron Welk's NPI?
Dr. Aaron Welk's National Provider Identifier (NPI) is 1780685503, issued by NPPES.

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated May 22, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›