Quick answers
- Does Ian L. Cassell accept Medicare assignment?
- Yes. Medicare's clinician data says Ian L. Cassell 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 Ian L. Cassell see?
- In 2024, CMS data shows 15 Original Medicare patients and 21 services for Ian L. Cassell. This counts Original Medicare only and measures volume, not quality.
- What is Ian L. Cassell's NPI number?
- 1487645719. 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 Ian L. Cassell, 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 | 15 |
|---|---|
| Services billed to Medicare | 21 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
Hospitals where Ian L. Cassell works
Medicare's Facility Affiliation Data lists Ian L. Cassell 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.
- Phoenix Children's HospitalPhoenix, AZ · Children's Hospital · Emergency services: not listed by Medicare · CCN 033302
Practice locations
Addresses where Ian L. Cassell is enrolled with Medicare (CMS data updated October 2, 2026).
- 1919 E Thomas RdPhoenix, AZ 85016 (602) 933‑0930
Group practices
Medicare enrollment lists Ian L. Cassell as a member of this group (CMS data updated October 2, 2026).
- Phoenix Children's Hospital437 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Pediatric Medicinealso
Other radiologists in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Other clinicians in Phoenix Children's Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Drexel University College Of Medicine |
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487645719 |
| 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