Kathryn Calladine Landauer, M.D.
Internal Medicine Physician · Clackamas, OR
Kathryn Calladine Landauer, M.D. is an internal medicine physician with a practice address in Clackamas, Oregon, and NPI 1194838953, issued on Aug 16, 2006. Check the license (Oregon OR MD20681, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathryn Calladine Landauer
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OR MD20681 OR
Self-reported in NPPES; status is on the state search - Practice location
- 10180 SE Sunnyside RD, Clackamas, OR 97015
- Phone
- (503) 652-2880
- Enumerated
- Aug 16, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070917000648); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 10180 SE Sunnyside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aaron Abajian, MDDiagnostic Radiology Physician1942732300
- Samer Abufadil, MDInternal Medicine Physician1750437653
- Jeremy Adler, M.D.Anatomic Pathology & Clinical Pathology Physician1548617483
- Alejandro Aguilar, PA-CPhysician Assistant1740940006
- Usman Ahmad, D.O.Internal Medicine Physician1326288697
- Hyun Jung AhnPhysical Therapist1245014703
Verify Kathryn Calladine Landauer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license OR MD20681Check 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
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Calladine Landauer among 2,116 internal medicine physician records in Oregon
Kathryn Calladine Landauer, M.D. is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1995 · median 2008 among the 1,232 with a school on file
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
101 internal medicine physician records list a practice address in Clackamas
They are 101 of the 2,098 NPPES records with a practice address in Clackamas, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Clackamas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lisa Ashcraft, MDClackamas, OR 970151801851746
- Kirthika Balakrishnan, MDClackamas, OR 970151881655256
- Stephanie Cha, MDClackamas, OR 970151902832371
- Alla Comardelle, M.D.Clackamas, OR 970151558397034
- Gregory Garcia, MDClackamas, OR 970151922036219
- Randall Gore, M.D.Clackamas, OR 970151639163447
- Gene Hong, M.D.Clackamas, OR 970151417905506
- Chieko Misaki, M.D.Clackamas, OR 970151225093172
Common questions
What is Kathryn Calladine Landauer, M.D.'s NPI number?
Kathryn Calladine Landauer, M.D.'s National Provider Identifier (NPI) is 1194838953, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Calladine Landauer, M.D. located?
The NPPES record lists a practice address at 10180 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (503) 652-2880. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Calladine Landauer, M.D.'s license?
NPPES lists Oregon license number OR MD20681, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.