Anne Castle, P.A.
NPI 1669424206 · Physician Assistant · Santa Ana, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anne Castle, P.A. is a Physician Assistant provider in Santa Ana, CA (NPI 1669424206).
Provider details
- NPI number
- 1669424206
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Female
- Sole proprietor
- No
- License
- PA17545 (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
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 45 | 45 |
| Azithromycin | 35 | 35 |
| Prednisone | 29 | 28 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 25 | 24 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 21 | 21 |
| Meloxicam | 21 | 21 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$43 across 2 records (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
Registry dates
- Enumerated
- 2006-05-16
- Last updated
- 2021-12-01
Frequently asked questions
- What is Anne Castle's NPI number?
- Anne Castle's National Provider Identifier (NPI) is 1669424206, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anne Castle's specialty?
- Anne Castle is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Anne Castle located?
- Anne Castle's practice location on file with NPPES is 1001 N Tustin Ave, Santa Ana, CA 92705-3502.
- What is Anne Castle's phone number?
- The practice phone number listed in the NPPES registry for Anne Castle is (714) 953-3500.
- Does Anne Castle accept Medicare?
- Anne Castle is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anne Castle's NPI active?
- Yes — Anne Castle's NPI (1669424206) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.