Joseph L. Sage, MD
Adolescent Medicine (Internal Medicine) Physician · Eugene, OR
Joseph L. Sage, MD is an adolescent medicine (internal medicine) physician with a practice address in Eugene, Oregon, and NPI 1477583722, issued on Jul 3, 2006. Check the license (Oregon MD152796, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Joseph L. Sage
- Credential
- MD
- Primary taxonomy
- Adolescent Medicine (Internal Medicine) Physician 207RA0000X
- License number
- MD152796 OR
Self-reported in NPPES; status is on the state search - Practice location
- 4135 Quest Dr, Eugene, OR 97402
- Phone
- (541) 461-8006
- Enumerated
- Jul 3, 2006
- Record last updated
- Sep 2, 2025
- Fax
- (541) 463-2197
- Medicaid ID
- 5006322990 OR
- Medicare enrollment
- Enrolled (PECOS I20110310000209); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 2001
- Entity
- Type 1 · individual
All 1 in Oregon → Look up another NPI →
Also registered at 4135 Quest Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donna Byrne, MDFamily Medicine Physician1043290570
- Christal Crooks, M.D.Family Medicine Physician1366975559
- Cassandra Elizondo, MSN, RN, FNP-CFamily Nurse Practitioner1467919704
- Kristin Kennedy, PTPhysical Therapist1073124517
- Lynn Morris, MDFamily Medicine Physician1750351730
- Jesse Ortiz, DPTPhysical Therapist1598123010
Verify Joseph L. Sage in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD152796Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average adolescent medicine (internal medicine) physician in 2024
93 Medicare Part D claims for 27 beneficiaries, against an average of 3,639 among the 177 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% 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 2 group practices
- Salem HealthSalem, OR
- South Sound Inpatient Physicians PLLCSpringfield, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adolescent Medicine (Internal Medicine) Physician providers in Oregon
There are 1 adolescent medicine (internal medicine) physician records in Oregon.
All 1 in Oregon → Every provider in Eugene → Adolescent Medicine (Internal Medicine) Physician nationwide →
Common questions
What is Joseph L. Sage, MD's NPI number?
Joseph L. Sage, MD's National Provider Identifier (NPI) is 1477583722, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph L. Sage, MD located?
The NPPES record lists a practice address at 4135 Quest Dr, Eugene, OR, 97402. Phone: (541) 461-8006. Providers update this record themselves, so call before visiting.
How can I verify Joseph L. Sage, MD's license?
NPPES lists Oregon license number MD152796, 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 Joseph L. Sage, MD prescribe under Medicare Part D?
In 2024, Joseph L. Sage, MD had 93 Medicare Part D claims for 27 beneficiaries; the average among adolescent medicine (internal medicine) physician prescribers was 3,639. 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.