Matthew Louis Klug, DO
Internal Medicine Physician · Corvallis, OR
Matthew Louis Klug, DO is an internal medicine physician with a practice address in Corvallis, Oregon, and NPI 1578026621, issued on Apr 6, 2019. Check the license (Oregon 193998, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Matthew Louis Klug
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 193998 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3600 NW Samaritan Dr, Corvallis, OR 97330
- Phone
- (541) 768-4906
- Enumerated
- Apr 6, 2019
- Record last updated
- Apr 6, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20221110000330); accepts Medicare assignment
- Medical or professional school
- Lincoln Memorial University Medical Department, 2019
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 3600 NW Samaritan Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew Louis Klug in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license 193998Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average internal medicine physician in 2024
933 Medicare Part D claims for 200 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium73 claims
- Pantoprazole Sodium45 claims
- Amlodipine Besylate44 claims
- Metoprolol Tartrate43 claims
- Carvedilol35 claims
- Furosemide34 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: $62.95
2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Bon Secours Medical Group Hampton Roads Specialty Care LLCNorfolk, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Louis Klug among 2,116 internal medicine physician records in Oregon
Matthew Louis Klug, DO 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 2019, is newer than 86% of them.
- NPI issued2019 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2019 · median 2008 among the 1,232 with a school on file
- Record last updated2019 · 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).
129 internal medicine physician records list a practice address in Corvallis
They are 129 of the 4,096 NPPES records with a practice address in Corvallis, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Corvallis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Steven Athay, M.D.Corvallis, OR 973301477502375
- Lynn Bentson, M.D, MACPCorvallis, OR 973301619916483
- Charlene Carroll, M.D.Corvallis, OR 973301275577769
- Brian Curtis, M.D.Corvallis, OR 973301245289115
- Ulrike Guempel, M.D.Corvallis, OR 973301912956897
- Kien Huynh, M.D.Corvallis, OR 973301619918034
- Janel Lawrence, M.D.Corvallis, OR 973301184673998
- Libor Pavlosek, M.D.Corvallis, OR 973301376510420
Common questions
What is Matthew Louis Klug, DO's NPI number?
Matthew Louis Klug, DO's National Provider Identifier (NPI) is 1578026621, issued on Apr 6, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Louis Klug, DO located?
The NPPES record lists a practice address at 3600 NW Samaritan Dr, Corvallis, OR, 97330. Phone: (541) 768-4906. Providers update this record themselves, so call before visiting.
How can I verify Matthew Louis Klug, DO's license?
NPPES lists Oregon license number 193998, 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.
How much does Matthew Louis Klug, DO prescribe under Medicare Part D?
In 2024, Matthew Louis Klug, DO had 933 Medicare Part D claims for 200 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.