Gregory L. Knecht, MD
Gastroenterology Physician · Springfield, OR
Gregory L. Knecht, MD is a gastroenterology physician with a practice address in Springfield, Oregon, and NPI 1598785578, issued on Jul 20, 2006. Check the license (Oregon MD10799, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory L. Knecht
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD10799 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3355 Riverbend Dr, Springfield, OR 97477
- Phone
- (541) 868-9500
- Enumerated
- Jul 20, 2006
- Record last updated
- Mar 19, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (541) 685-5920
- Medicaid ID
- 104687 OR
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 281 in Oregon → Look up another NPI →
Also registered at 3355 Riverbend Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Keith Balderston, MDMaternal & Fetal Medicine Physician1871525337
- Sara Batya, M.D.Neurology Physician1801084116
- Robert Carolan, M.D.Pulmonary Disease Physician1578570719
- Craig Chamberlain, MDGastroenterology Physician1598784928
Verify Gregory L. Knecht in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD10799Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average gastroenterology physician in 2024
35 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
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.
Gregory L. Knecht among 281 gastroenterology physician records in Oregon
Gregory L. Knecht, MD is one of 281 gastroenterology physician records with a practice address in Oregon. 79% 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 20% of them.
- NPI issued2006 · 20% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2009 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Oregon
There are 281 gastroenterology physician records in Oregon.
All 281 in Oregon → Every provider in Springfield → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Craig Chamberlain, MDSpringfield, OR 974771598784928
- Ryan De Lee, MDSpringfield, OR 974771104920693
- Paul Evans, M.D.Springfield, OR 974771962480871
- Jonathan Gonenne, MDSpringfield, OR 974771649299538
- Peter Grubel, MDSpringfield, OR 974771376531335
- Peter Kay, MDSpringfield, OR 974771710906177
- Christianne Kratka, MDSpringfield, OR 974771851310130
- Shane Mills, MDSpringfield, OR 974771699747055
Common questions
What is Gregory L. Knecht, MD's NPI number?
Gregory L. Knecht, MD's National Provider Identifier (NPI) is 1598785578, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory L. Knecht, MD located?
The NPPES record lists a practice address at 3355 Riverbend Dr, Springfield, OR, 97477. Phone: (541) 868-9500. Providers update this record themselves, so call before visiting.
How can I verify Gregory L. Knecht, MD's license?
NPPES lists Oregon license number MD10799, 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 Gregory L. Knecht, MD prescribe under Medicare Part D?
In 2024, Gregory L. Knecht, MD had 35 Medicare Part D claims; the average among gastroenterology physician prescribers was 811. 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.