Quick answers
- Does Allan L. Harrelson accept Medicare assignment?
- Yes. Medicare's clinician data says Allan L. Harrelson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Allan L. Harrelson see?
- In 2024, CMS data shows 820 Original Medicare patients and 1,547 services for Allan L. Harrelson. This counts Original Medicare only and measures volume, not quality.
- What is Allan L. Harrelson's NPI number?
- 1437360740. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Allan L. Harrelson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 820 |
|---|---|
| Services billed to Medicare | 1,547 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)393 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)289 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)283 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)91 services
- Ultrasound of heart blood flow, valves and chambers, follow-up (93321)78 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease47%
- Heart failure44%
- Arthritis43%
- Atrial fibrillation42%
Hospitals where Allan L. Harrelson works
Medicare's Facility Affiliation Data lists Allan L. Harrelson at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Ocean Beach HospitalIlwaco, WA · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 501314
- OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380009
- PeaceHealth Southwest Medical CenteVancouver, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 500050
- PeaceHealth St John Medical CenterLongview, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500041
Practice locations
Addresses where Allan L. Harrelson is enrolled with Medicare (CMS data updated October 2, 2026).
- 15700 SW Greystone CtBeaverton, OR 97006
- 1615 Delaware StLongview, WA 98632
- 1660 Delware StLongview, WA 98632 (360) 414‑2800
- 3303 S Bond AvePortland, OR 97239 (503) 494‑8311
Group practices
Medicare enrollment lists Allan L. Harrelson as a member of these groups (CMS data updated October 2, 2026).
- University Professional Services1,724 clinicians in the group
- PeaceHealth195 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Oregon →
Other cardiologists in Beaverton
Clinicians with the same Medicare primary specialty in Beaverton, OR — not a recommendation.
Other clinicians in University Professional Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University Of Health Sciences, College Of Osteo Med, Kirksville |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1437360740 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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