Olga Diaz
NPI 1598128217 · Emergency Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Olga Diaz is a Emergency Medicine Physician provider in San Diego, CA (NPI 1598128217).
Provider details
- NPI number
- 1598128217
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,108 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 365 | $176 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 274 | $8 |
| X-Ray of Chest, 1 View71045 | 132 | $9 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 76 | $121 |
| Ultrasound of Heart, Follow-Up93308 | 74 | $26 |
| Critical Care, First 30-74 Minutes99291 | 71 | $217 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 85 | 82 |
| Cefuroxime Axetilbrand: Cefuroxime | 53 | 53 |
| Famotidine | 29 | 20 |
| Dexamethasone | 20 | 20 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 19 | 19 |
| Doxycycline Hyclate | 16 | 16 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-03-30
- Last updated
- 2021-11-29
- Certified
- 2020-11-11
Frequently asked questions
- What is Olga Diaz's NPI number?
- Olga Diaz's National Provider Identifier (NPI) is 1598128217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olga Diaz's specialty?
- Olga Diaz is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Olga Diaz located?
- Olga Diaz's practice location on file with NPPES is 2004 Burroughs St, San Diego, CA 92111-6619.
- What is Olga Diaz's phone number?
- The practice phone number listed in the NPPES registry for Olga Diaz is (619) 787-2699.
- Does Olga Diaz accept Medicare?
- Olga Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Olga Diaz's NPI active?
- Yes — Olga Diaz's NPI (1598128217) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.