Quick answers
- Does Gabriela R. Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Gabriela R. Diaz 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 Gabriela R. Diaz see?
- In 2024, CMS data shows 82 Original Medicare patients and 137 services for Gabriela R. Diaz. This counts Original Medicare only and measures volume, not quality.
- What is Gabriela R. Diaz's NPI number?
- 1578835864. 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 Gabriela R. Diaz, 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 | 82 |
|---|---|
| Services billed to Medicare | 137 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Hemoglobin a1c level (83036)112 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 cholesterol75%
- Diabetes75%
- Chronic kidney disease39%
- Arthritis37%
- Depression24%
Hospitals where Gabriela R. Diaz works
Medicare's Facility Affiliation Data lists Gabriela R. Diaz 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.
- Marian Regional Medical CenterSanta Maria, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050107
Practice locations
Addresses where Gabriela R. Diaz is enrolled with Medicare (CMS data updated October 2, 2026).
- 2115 S Centerpointe Pkwy, Santa Maria Health Care CenterSanta Maria, CA 93455 (805) 346‑7230
- 300 N San Antonio RdSanta Barbara, CA 93110
- 300 N San Antonio Rd, Rm 107Santa Barbara, CA 93110 (805) 681‑5461
- 322 N San Antonio Rd, Cnty of Sb Men TalSanta Barbara, CA 93110 (805) 681‑5220
Group practices
Medicare enrollment lists Gabriela R. Diaz as a member of this group (CMS data updated October 2, 2026).
- Santa Barbara County Auditor97 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Santa Maria
Clinicians with the same Medicare primary specialty in Santa Maria, CA — not a recommendation.
Other clinicians in Santa Barbara County Auditor
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Irvine California College Of Medicine |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578835864 |
| 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