Gregory Thielen, OTR
Hand Occupational Therapist · Corvallis, OR
Gregory Thielen, OTR is a hand occupational therapist with a practice address in Corvallis, Oregon, and NPI 1306221510, issued on Jul 29, 2015. Check the license (Oregon 914584, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Thielen
- Credential
- OTR
- Primary taxonomy
- Hand Occupational Therapist 225XH1200X
- License number
- 914584 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2797 NW 9TH St, Corvallis, OR 97330
- Phone
- (541) 207-0910
- Enumerated
- Jul 29, 2015
- Record last updated
- Jul 29, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151201000757); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hand occupational therapist records → All 66 in Oregon → Look up another NPI →
Also registered at 2797 NW 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lorraine Resoff, O.T.R, CHTPhysical Therapist1639120306
Verify Gregory Thielen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 914584Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Upper Hand Orthopaedics PCCorvallis, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Thielen among 66 hand occupational therapist records in Oregon
Gregory Thielen, OTR is one of 66 hand occupational therapist records with a practice address in Oregon. 41% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 68% of them.
- NPI issued2015 · 68% of these records are older, 24% newer
- In a Medicare fileYes · 41% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated1986 · median 1998 among the 29 with a school on file
- Record last updated2015 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225XH1200X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hand Occupational Therapist providers in Oregon
There are 66 hand occupational therapist records in Oregon.
All 66 in Oregon → Every provider in Corvallis → Hand Occupational Therapist nationwide →
The 8 hand occupational therapist records with the nearest ZIP codes
- Pamela Hough, O.T.Corvallis, OR 973301720038490
- Trisha Ostrander, OTSalem, OR 973021275853616
- Andrew Cox, OTRL CHTSalem, OR 973011689861122
- Mark Healy, OTRL CHTSalem, OR 973011629158555
- Brett Hensley, MOTSalem, OR 973011952671901
- Dorothy Layer, OTRSalem, OR 973011528238029
- Nancy Clogston, O.T.Eugene, OR 974011215128798
- Judith Emmanere, OTR/L, CHTEugene, OR 974011750693552
Common questions
What is Gregory Thielen, OTR's NPI number?
Gregory Thielen, OTR's National Provider Identifier (NPI) is 1306221510, issued on Jul 29, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Thielen, OTR located?
The NPPES record lists a practice address at 2797 NW 9TH St, Corvallis, OR, 97330. Phone: (541) 207-0910. Providers update this record themselves, so call before visiting.
How can I verify Gregory Thielen, OTR's license?
NPPES lists Oregon license number 914584, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity 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.