Quick answers
- Does Donald O. Christensen accept Medicare assignment?
- Yes. Medicare's clinician data says Donald O. Christensen 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 Donald O. Christensen see?
- In 2024, CMS data shows 1,773 Original Medicare patients and 6,336 services for Donald O. Christensen. This counts Original Medicare only and measures volume, not quality.
- What is Donald O. Christensen's NPI number?
- 1124283882. 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 Donald O. Christensen, 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 | 1,773 |
|---|---|
| Services billed to Medicare | 6,336 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)2,226 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)1,158 services
- Special stained specimen slides to examine tissue, initial procedure (88342)637 services
- Microscopic genetic analysis of tumor, manual (88360)626 services
- Pathology examination of tissue using a microscope, moderately high complexity (88307)270 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 cholesterol75%
- High blood pressure74%
- Arthritis48%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)44%
- Ischemic heart disease29%
- Diabetes28%
Hospitals where Donald O. Christensen works
Medicare's Facility Affiliation Data lists Donald O. Christensen 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.
- City of Hope Cancer Center PhoenixGoodyear, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 030138
- Honor Health John C. Lincoln Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030014
- HonorHealth Deer Valley Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030092
- HonorHealth Scottsdale Shea Medical CenterScottsdale, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030087
- HonorHealth Sonoran Crossing Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030146
Practice locations
Addresses where Donald O. Christensen is enrolled with Medicare (CMS data updated October 2, 2026).
- 9250 N 3rd St, Suite 4000Phoenix, AZ 85020 (602) 861‑3456
Group practices
Medicare enrollment lists Donald O. Christensen as a member of these groups (CMS data updated October 2, 2026).
- Western Pathology Associates Ltd5 clinicians in the group
- Pinnacle Pathology P C4 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Other clinicians in Western Pathology Associates Ltd
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 | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124283882 |
| 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