Quick answers
- Where does Arthur L. Lenahan see patients?
- Medicare's clinician data lists 1 practice location in Portland, OR. Call before your visit to confirm the address.
- What is Arthur L. Lenahan's specialty?
- Medicare lists Medical Genetics and Genomics as the primary specialty.
- Does Arthur L. Lenahan accept Medicare assignment?
- Yes. Medicare's clinician data says Arthur L. Lenahan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Arthur L. Lenahan offer telehealth?
- Medicare's clinician data says Arthur L. Lenahan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Arthur L. Lenahan?
- (503) 413-2042, as listed in official Medicare / NPI Registry data.
- What is Arthur L. Lenahan's NPI number?
- 1023647062. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Arthur L. Lenahan is enrolled with Medicare (CMS data updated 2026-10-02).
- 2801 N Gantenbein AvePortland, OR 97227 (503) 413‑2042
Group practices
Medicare enrollment lists Arthur L. Lenahan as a member of this group (CMS data updated 2026-10-02).
- Legacy Emanuel Hospital and Health Center238 clinicians in the group
Specialties
Find other Medical Genetics and Genomics doctors in Oregon →
Other medical geneticists in Portland
Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Oregon Health Sciences University School Of Medicine |
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1023647062 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians