Terri Knowles, O.D.
Optometrist · Grand Ronde, OR
Terri Knowles, O.D. is an optometrist with a practice address in Grand Ronde, Oregon, and NPI 1922554542, issued on Sep 1, 2016. Check the license (Oregon 4318ATI, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Terri Knowles
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 4318ATI OR
Self-reported in NPPES; status is on the state search - Practice location
- 9615 Grand Ronde RD, Grand Ronde, OR 97347
- Phone
- (503) 879-2097
- Enumerated
- Sep 1, 2016
- Record last updated
- Jun 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (503) 879-1644
- Medicare enrollment
- Enrolled (PECOS I20190306003701); accepts Medicare assignment
- Medical or professional school
- Pacific University - College Of Optometry, 2017
- Entity
- Type 1 · individual
Also registered at 9615 Grand Ronde RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sydney ClarkAddiction (Substance Use Disorder) Counselor1093410060
- Nicole Estrada, LMFT, LPCMarriage & Family Therapist1093073439
- Shelly FoxPeer Specialist1619664711
- Katie MartinInternal Medicine Physician1770970998
- Shawna Martin, RNRegistered Nurse1437972759
- Sarah Ross, MS, CCC-SLPSpeech-Language Pathologist1881970069
Verify Terri Knowles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 4318ATICheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average optometrist in 2024
21 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of 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.
Bills Medicare through one group practice
- Confederated Tribes OF The Grand Ronde Community OF OregonGrand Ronde, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
2 optometrist records list a practice address in Grand Ronde
They are 2 of the 64 NPPES records with a practice address in Grand Ronde, and 944 optometrist records in Oregon.
All 2 in Grand Ronde → All 944 in Oregon → Every provider in Grand Ronde →
Other optometrist records in Oregon
- James Adamek, ODEagle Point, OR1568660199
- Brittany Adams, O.D.Albany, OR1265732978
- Makayla Adams, ODMyrtle Creek, OR1790461911
- Shelly Adams, O.D.White City, OR1396908075
- Samuel Adelman, O.D.Happy Valley, OR1043545122
- Brett Agost, O.D.Gresham, OR1326030883
- Dane AgostGresham, OR1376461657
- Andrew Aker, O.D.Portland, OR1154520906
- Joseph An, O.D.Gresham, OR1235271511
- Anna Anderson, O.D.Portland, OR1376707984
Common questions
What is Terri Knowles, O.D.'s NPI number?
Terri Knowles, O.D.'s National Provider Identifier (NPI) is 1922554542, issued on Sep 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Terri Knowles, O.D. located?
The NPPES record lists a practice address at 9615 Grand Ronde RD, Grand Ronde, OR, 97347. Phone: (503) 879-2097. Providers update this record themselves, so call before visiting.
How can I verify Terri Knowles, O.D.'s license?
NPPES lists Oregon license number 4318ATI, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Terri Knowles, O.D. prescribe under Medicare Part D?
In 2024, Terri Knowles, O.D. had 21 Medicare Part D claims; the average among optometrist prescribers was 277. 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.