Arthur Louis Lenahan, MD MPH
Ph.D. Medical Genetics Physician · Portland, OR
Arthur Louis Lenahan, MD MPH is a ph.d. medical genetics physician with a practice address in Portland, Oregon, and NPI 1023647062, issued on Apr 2, 2020. Check the license (Oregon MD220000, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Arthur Louis Lenahan
- Credential
- MD MPH
- Primary taxonomy
- Ph.D. Medical Genetics Physician 207SG0205X
- License number
- MD220000 OR
Self-reported in NPPES; status is on the state search - Practice location
- 501 N Graham St Ste 330B, Portland, OR 97227
- Phone
- (503) 944-5970
- Enumerated
- Apr 2, 2020
- Record last updated
- Feb 14, 2025
- Medicare enrollment
- Enrolled (PECOS I20241023000818); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2020
- Entity
- Type 1 · individual
1 nearest ph.d. medical genetics physician record → All 2 in Oregon → Look up another NPI →
Also registered at 501 N Graham St Ste 330B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- George Anadiotis, DOPh.D. Medical Genetics Physician1992766695
- Mackenzie Coston, CGCGenetic Counselor (M.S.)1013726561
- Dana Simpson, MDClinical Genetics (M.D.) Physician1255346771
- Carmel Wimber, PA-C, M.S.Surgical Physician Assistant1174796528
Verify Arthur Louis Lenahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD220000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Legacy Emanuel Hospital And Health CenterPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ph.D. Medical Genetics Physician providers in Oregon
There are 2 ph.d. medical genetics physician records in Oregon.
All 2 in Oregon → Every provider in Portland → Ph.D. Medical Genetics Physician nationwide →
The 1 ph.d. medical genetics physician record with the nearest ZIP codes
- George Anadiotis, DOPortland, OR 972271992766695
Common questions
What is Arthur Louis Lenahan, MD MPH's NPI number?
Arthur Louis Lenahan, MD MPH's National Provider Identifier (NPI) is 1023647062, issued on Apr 2, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Arthur Louis Lenahan, MD MPH located?
The NPPES record lists a practice address at 501 N Graham St Ste 330B, Portland, OR, 97227. Phone: (503) 944-5970. Providers update this record themselves, so call before visiting.
How can I verify Arthur Louis Lenahan, MD MPH's license?
NPPES lists Oregon license number MD220000, 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.
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.