Graham S. Kaiser, D.O.
Family Medicine Physician · Springfield, OR
Graham S. Kaiser, D.O. is a family medicine physician with a practice address in Springfield, Oregon, and NPI 1598731903, issued on Feb 24, 2006. Check the license (Oregon DO23559, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Graham S. Kaiser
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DO23559 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3377 Riverbend Dr, Springfield, OR 97477
- Phone
- (541) 222-6005
- Enumerated
- Feb 24, 2006
- Record last updated
- Jul 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 268889 OR
- Medicare enrollment
- Enrolled (PECOS I20091222000556); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 1996
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 3377 Riverbend Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Harry Adamo, MDFamily Medicine Physician1235191412
- Algene Agustin, MDHospitalist Physician1154849446
- Ossama Al Masalmeh, M.D.Hospitalist Physician1851654776
- Joanna Marie Aquino-Laban, M.D.Internal Medicine Physician1336435536
- Stan AtkinHospitalist Physician1831509371
- Virginia Barak, MDPediatrics Physician1063948461
Verify Graham S. Kaiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO23559Check 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 family medicine physician in 2024
292 Medicare Part D claims for 209 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 23 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass31 claims
- Doxycycline Monohydrate29 claims
- Prednisone23 claims
- Albuterol Sulfate Hfa17 claims
- Hydrocodone-Acetaminophen16 claims
- Cephalexin15 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
- Peacehealth Medical GroupSpringfield, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Graham S. Kaiser among 2,847 family medicine physician records in Oregon
Graham S. Kaiser, D.O. is one of 2,847 family medicine physician records with a practice address in Oregon. 75% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1996 · median 2009 among the 1,671 with a school on file
- Record last updated2012 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
51 family medicine physician records list a practice address in Springfield
They are 51 of the 2,209 NPPES records with a practice address in Springfield, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Springfield → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Patricia Ahlen, MDSpringfield, OR 974771083681860
- John Ahlen, MDSpringfield, OR 974771669449898
- Michael Findley, M.D.Springfield, OR 974771154320380
- Warren Griffith, D.O.Springfield, OR 974771932180049
- Kenneth Hanson, D.O.Springfield, OR 974771710950324
- Douglas Jeffrey, MDSpringfield, OR 974771174592117
- Steven Lambros, M.D.Springfield, OR 974771730156399
- Jotham Lefford, M.D.Springfield, OR 974771447227186
Common questions
What is Graham S. Kaiser, D.O.'s NPI number?
Graham S. Kaiser, D.O.'s National Provider Identifier (NPI) is 1598731903, issued on Feb 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Graham S. Kaiser, D.O. located?
The NPPES record lists a practice address at 3377 Riverbend Dr, Springfield, OR, 97477. Phone: (541) 222-6005. Providers update this record themselves, so call before visiting.
How can I verify Graham S. Kaiser, D.O.'s license?
NPPES lists Oregon license number DO23559, 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 Graham S. Kaiser, D.O. prescribe under Medicare Part D?
In 2024, Graham S. Kaiser, D.O. had 292 Medicare Part D claims for 209 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.