Quick answers
- Does Charles K. Anderson accept Medicare assignment?
- Yes. Medicare's clinician data says Charles K. Anderson 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 Charles K. Anderson see?
- In 2024, CMS data shows 268 Original Medicare patients and 50,010 services for Charles K. Anderson. This counts Original Medicare only and measures volume, not quality.
- What is Charles K. Anderson's NPI number?
- 1215191259. 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 Charles K. Anderson, 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 | 268 |
|---|---|
| Services billed to Medicare | 50,010 |
| Different services or procedures | 145 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, paclitaxel, 1 mg (J9267)10,232 services
- Injection, aprepitant, 1 mg (J0185)6,370 services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)3,500 services
- Injection, bevacizumab-bvzr, biosimilar, (zirabev), 10 mg (Q5118)3,030 services
- Injection, palonosetron hcl, 25 mcg (J2469)831 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 pressure63%
- High cholesterol55%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)52%
- Arthritis36%
- Chronic kidney disease25%
- Diabetes24%
Hospitals where Charles K. Anderson works
Medicare's Facility Affiliation Data lists Charles K. Anderson 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.
- Asante Three Rivers Medical CenterGrants Pass, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380002
- Bay Area HospitalCoos Bay, OR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 380090
- McKenzie-Willamette Medical CenterSpringfield, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380020
- Peace Harbor Medical CenterFlorence, OR · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 381316
- Sacred Heart Medical Center - RiverbendSpringfield, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380102
Practice locations
Addresses where Charles K. Anderson is enrolled with Medicare (CMS data updated October 2, 2026).
- 520 Country Club PkwyEugene, OR 97401 (541) 683‑5001
Group practices
Medicare enrollment lists Charles K. Anderson as a member of this group (CMS data updated October 2, 2026).
- Oncology Associates of Oregon P C48 clinicians in the group
Specialties
- Gynecological Oncologyprimary
Other gynecologic oncologists in Oregon
Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.
Other clinicians in Oncology Associates of Oregon P C
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 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) | 1215191259 |
| 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