Dianne C. Eardley, MD
Internal Medicine Physician · Portland, OR
Dianne C. Eardley, MD is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1740210434, issued on Jul 5, 2006. Check the license (Oregon MD18802, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Dianne C. Eardley
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD18802 OR
Self-reported in NPPES; status is on the state search - Practice location
- 417 SW 117TH Ave, Portland, OR 97225
- Phone
- (503) 216-9400
- Enumerated
- Jul 5, 2006
- Record last updated
- Mar 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (503) 216-9499
- Medicaid ID
- 065748 OR
- Medicare enrollment
- Enrolled (PECOS I20100420001044); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 417 SW 117TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Dianne C. Eardley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD18802Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average internal medicine physician in 2024
631 Medicare Part D claims for 214 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium71 claims
- Levothyroxine Sodium42 claims
- Lisinopril36 claims
- Simvastatin28 claims
- Losartan Potassium26 claims
- Omeprazole26 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.
889 internal medicine physician records list a practice address in Portland
They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon.
All 889 in Portland → All 2,116 in Oregon → Every provider in Portland →
Other internal medicine physician records in Oregon
- Charmaine Clarisse Abalos, M.D.Medford, OR1700376050
- Soraya Abbassian, M.D.Portland, OR1225029184
- Mohamed Abdel Khalek, M.DRoseburg, OR1972687390
- Rand AbedalweliPortland, OR1265019996
- Robert Abernathy, M.D.Bend, OR1063433449
- Rebecca Abney, D.O.Portland, OR1881984748
- Mohamed Aboukhashan, MDMedford, OR1932350782
- Allison Abraham, D.O.Portland, OR1831488444
- Heidi Abreu Pacheco, M.DMount Angel, OR1669691721
- Hennie Abrio, MDRoseburg, OR1891925129
Common questions
What is Dianne C. Eardley, MD's NPI number?
Dianne C. Eardley, MD's National Provider Identifier (NPI) is 1740210434, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dianne C. Eardley, MD located?
The NPPES record lists a practice address at 417 SW 117TH Ave, Portland, OR, 97225. Phone: (503) 216-9400. Providers update this record themselves, so call before visiting.
How can I verify Dianne C. Eardley, MD's license?
NPPES lists Oregon license number MD18802, 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 Dianne C. Eardley, MD prescribe under Medicare Part D?
In 2024, Dianne C. Eardley, MD had 631 Medicare Part D claims for 214 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.