Katharine Middendorf, PH.D.
Psychologist · Corvallis, OR
Katharine Middendorf, PH.D. is a psychologist with a practice address in Corvallis, Oregon, and NPI 1619428950, issued on Oct 21, 2016. Check the license (Oregon 2746, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katharine Middendorf
- Credential
- PH.D.
- Primary taxonomy
- Psychologist 103T00000X
- License numbers
- 2746 OR
2742 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3509 NW Samaritan Dr Ste 215, Corvallis, OR 97330
- Phone
- (541) 768-5235
- Enumerated
- Oct 21, 2016
- Record last updated
- Nov 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161121001532); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3509 NW Samaritan Dr Ste 215
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Axman, M.D.Child & Adolescent Psychiatry Physician1013172832
- Alexandra Bernal, PHDPsychologist1538731039
- Kyle Cothran, MDPsychiatry Physician1639732951
- James Douglas, M.D.Psychiatry Physician1265525802
- Guy HughesPsychiatry Physician1053773341
- Jesse KippermanPsychiatry Physician1235759549
Verify Katharine Middendorf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 2746Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 86.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Good Samaritan Hospital CorvallisCorvallis, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Psychologist providers in Oregon
There are 742 psychologist records in Oregon.
Other psychologist records in Oregon
- Jennifer Ablow, PH.D.Eugene, OR1033683560
- Katherine Adams, PSYDTigard, OR1518625037
- John Adler, PHDGresham, OR1588645055
- Kendra AlkirePortland, OR1518522564
- Heather Allen, PSYDLincoln City, OR1457897142
- Doug Altilio, PSYDGresham, OR1518107226
- Scott Alvord, PSYDAurora, OR1013245455
- D Carol Anderson, PSY.D.Portland, OR1437450558
- Dorothy Anderson, PH.D.Salem, OR1457392516
- Jeffrey Anderson, PSY.DHappy Valley, OR1144385246
Common questions
What is Katharine Middendorf, PH.D.'s NPI number?
Katharine Middendorf, PH.D.'s National Provider Identifier (NPI) is 1619428950, issued on Oct 21, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Katharine Middendorf, PH.D. located?
The NPPES record lists a practice address at 3509 NW Samaritan Dr Ste 215, Corvallis, OR, 97330. Phone: (541) 768-5235. Providers update this record themselves, so call before visiting.
How can I verify Katharine Middendorf, PH.D.'s license?
NPPES lists Oregon license number 2746, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
What is Katharine Middendorf, PH.D.'s MIPS final score?
The 2023 MIPS final score is 86.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.