Quick answers
- Where does Eric A. Castaneda see patients?
- Medicare's clinician data lists 9 practice locations, including Tucson, AZ and Green Valley, AZ. Call before your visit to confirm the address.
- What is Eric A. Castaneda's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Eric A. Castaneda accept Medicare assignment?
- Yes. Medicare's clinician data says Eric A. Castaneda accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Eric A. Castaneda?
- (520) 396-1370, as listed in official Medicare / NPI Registry data.
- What is Eric A. Castaneda's NPI number?
- 1619936002. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Eric A. Castaneda is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 1707 W Saint Marys Rd, Suite 101Tucson, AZ 85745 (520) 396‑1370
- 395 N Silverbell Rd, Suite 355Tucson, AZ 85745 (520) 622‑5912
- 400 W Camino Casa Verde, Suite 100Green Valley, AZ 85614 (520) 625‑1760
- 4790 S Calle Santa CruzTucson, AZ 85714 (520) 777‑2277
- 4892 N Stone AveTucson, AZ 85704
Group practices
Medicare enrollment lists Eric A. Castaneda as a member of this group (CMS data updated 2026-10-02).
- Tucson Physician Group Holdings LLC201 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619936002 |
| 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 2026-10-02, retrieved 2026-10-29
- 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