Quick answers
- Does David R. Siegel accept Medicare assignment?
- Yes. Medicare's clinician data says David R. Siegel 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 David R. Siegel see?
- In 2024, CMS data shows 469 Original Medicare patients and 2,704 services for David R. Siegel. This counts Original Medicare only and measures volume, not quality.
- What is David R. Siegel's NPI number?
- 1225018559. 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 David R. Siegel, 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 | 469 |
|---|---|
| Services billed to Medicare | 2,704 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)843 services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)579 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)310 services
- Psychotherapy with evaluation and management visit, 45 minutes (90836)233 services
- Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)146 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 cholesterol68%
- Depression67%
- Anxiety56%
- Alzheimer's disease or dementia49%
- Arthritis47%
Practice locations
Addresses where David R. Siegel is enrolled with Medicare (CMS data updated October 2, 2026).
- 603 N Wilmot RdTucson, AZ 85711 (520) 790‑1556
- 603 N Wilmot Rd, Suite 201Tucson, AZ 85711 (520) 729‑1311
Group practices
Medicare enrollment lists David R. Siegel as a member of these groups (CMS data updated October 2, 2026).
- Associated Internists of Tucson PLLC7 clinicians in the group
- Wilmot Primary Care Group, PLLC3 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Other clinicians in Associated Internists of Tucson PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1979 (47 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225018559 |
| 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
- 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