Aaron R. Welk, D.M.D.
Endodontics · Tualatin, OR
Aaron R. Welk, D.M.D. is an endodontics with a practice address in Tualatin, Oregon, and NPI 1780685503, issued on Aug 2, 2005. Check the license (Oregon D7507, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Aaron R. Welk
- Credential
- D.M.D.
- Primary taxonomy
- Endodontics 1223E0200X
- License number
- D7507 OR
Self-reported in NPPES; status is on the state search - Practice location
- 18735 SW Boones Ferry RD, Tualatin, OR 97062
- Phone
- (503) 855-4546
- Enumerated
- Aug 2, 2005
- Record last updated
- Sep 18, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (503) 427-2726
- Entity
- Type 1 · individual
8 nearest endodontics records → All 113 in Oregon → Look up another NPI →
Also registered at 18735 SW Boones Ferry RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Welk, D.M.D.Dentist1841347606
Verify Aaron R. Welk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license D7507Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average endodontics in 2024
11 Medicare Part D claims, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $67.20
2 payments; by number, the most common kind was education; the largest payer was Septodont Inc. The 2,057 providers of this specialty with any payment received $49,739.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Aaron R. Welk among 113 endodontics records in Oregon
Aaron R. Welk, D.M.D. is one of 113 endodontics records with a practice address in Oregon. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 82% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2013 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endodontics providers in Oregon
There are 113 endodontics records in Oregon.
All 113 in Oregon → Every provider in Tualatin → Endodontics nationwide →
The 8 endodontics records with the nearest ZIP codes
- James Walker, D.D.S.Tualatin, OR 970621902017130
- S. Rainka, DMDWest Linn, OR 970681295841450
- Ryan Reese, D.M.DWilsonville, OR 970701548516958
- Tembre Delong, DMDOregon City, OR 970451861017824
- Dennis Reed, DDSOregon City, OR 970451326032715
- Marat Tselnik, DDSOregon City, OR 970451578557963
- Katherine McKitrick, DMDGresham, OR 970801841529179
- Paul Ortner, DDS, CAGSLake Oswego, OR 970351568476406
Common questions
What is Aaron R. Welk, D.M.D.'s NPI number?
Aaron R. Welk, D.M.D.'s National Provider Identifier (NPI) is 1780685503, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Aaron R. Welk, D.M.D. located?
The NPPES record lists a practice address at 18735 SW Boones Ferry RD, Tualatin, OR, 97062. Phone: (503) 855-4546. Providers update this record themselves, so call before visiting.
How can I verify Aaron R. Welk, D.M.D.'s license?
NPPES lists Oregon license number D7507, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Aaron R. Welk, D.M.D. prescribe under Medicare Part D?
In 2024, Aaron R. Welk, D.M.D. had 11 Medicare Part D claims; the average among endodontics prescribers was 121. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.