Quick answers
- Does Angela T. Marshall Olson accept Medicare assignment?
- Yes. Medicare's clinician data says Angela T. Marshall Olson 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 Angela T. Marshall Olson see?
- In 2024, CMS data shows 166 Original Medicare patients and 1,739 services for Angela T. Marshall Olson. This counts Original Medicare only and measures volume, not quality.
- What is Angela T. Marshall Olson's NPI number?
- 1841493988. 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 Angela T. Marshall Olson, 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 | 166 |
|---|---|
| Services billed to Medicare | 1,739 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent 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)231 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)131 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)128 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)51 services
- Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)40 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 cholesterol64%
- High blood pressure54%
- Arthritis37%
- Osteoporosis23%
- Anxiety22%
- Depression19%
Hospitals where Angela T. Marshall Olson works
Medicare's Facility Affiliation Data lists Angela T. Marshall Olson 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.
- Legacy Good Samaritan Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380017
- Legacy Meridian Park Medical CenterTualatin, OR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 380089
- OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380009
- Providence St Vincent Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380004
Practice locations
Addresses where Angela T. Marshall Olson is enrolled with Medicare (CMS data updated October 2, 2026).
- 8329 SW Beaverton Hillsdale HwyPortland, OR 97225 (503) 414‑5160
Group practices
Medicare enrollment lists Angela T. Marshall Olson as a member of this group (CMS data updated October 2, 2026).
- Legacy Clinics LLC713 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Portland
Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.
Other clinicians in Legacy Clinics LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1841493988 |
| 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