Darlene Topacio, P.A.
NPI 1528129095 · Medical Physician Assistant · Santa Ana, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darlene Topacio, P.A. is a Medical Physician Assistant provider in Santa Ana, CA (NPI 1528129095).
Provider details
- NPI number
- 1528129095
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Female
- Sole proprietor
- No
- License
- PA 17639 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 24 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 19 | 19 |
| Cefuroxime Axetilbrand: Cefuroxime | 17 | 17 |
| Pantoprazole Sodium | 16 | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 7000 Boulder AveHighland, CA 92346-3348Phone: (909) 862-1191
- 18200 Yorba Linda Blvd401Yorba Linda, CA 92886-4056Phone: (949) 986-3300
Registry dates
- Enumerated
- 2006-12-12
- Last updated
- 2024-11-15
- Certified
- 2024-11-15
Frequently asked questions
- What is Darlene Topacio's NPI number?
- Darlene Topacio's National Provider Identifier (NPI) is 1528129095, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darlene Topacio's specialty?
- Darlene Topacio is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Darlene Topacio located?
- Darlene Topacio's practice location on file with NPPES is 1401 W 1st St Ste 101, Santa Ana, CA 92703-3757.
- What is Darlene Topacio's phone number?
- The practice phone number listed in the NPPES registry for Darlene Topacio is (714) 542-9700.
- Does Darlene Topacio accept Medicare?
- Darlene Topacio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darlene Topacio's NPI active?
- Yes — Darlene Topacio's NPI (1528129095) is active in the NPPES registry as of the last update on 2024-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.