Quick answers
- Does Robert A. Zalewski-Zaragoza accept Medicare assignment?
- Yes. Medicare's clinician data says Robert A. Zalewski-Zaragoza 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 Robert A. Zalewski-Zaragoza see?
- In 2024, CMS data shows 17 Original Medicare patients and 479 services for Robert A. Zalewski-Zaragoza. This counts Original Medicare only and measures volume, not quality.
- What is Robert A. Zalewski-Zaragoza's NPI number?
- 1720054133. 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 Robert A. Zalewski-Zaragoza, 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 | 17 |
|---|---|
| Services billed to Medicare | 479 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)120 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)77 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%
- Depression75%
- Anxiety65%
Practice locations
Addresses where Robert A. Zalewski-Zaragoza is enrolled with Medicare (CMS data updated October 2, 2026).
- 1350 Columbia St, Unit 800San Diego, CA 92101 (619) 255‑1652
- 780 Bay Blvd, Suite 203Chula Vista, CA 91910 (855) 940‑4867
Group practices
Medicare enrollment lists Robert A. Zalewski-Zaragoza as a member of these groups (CMS data updated October 2, 2026).
- TMS Neurohealth West Professional Medical Corporation14 clinicians in the group
- Robert Zalewski-Zaragoza MD Inc10 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in San Diego
Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.
Other clinicians in TMS Neurohealth West Professional Medical Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 2002 (24 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) | 1720054133 |
| 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