Anne Castle, P.A.
Physician Assistant · Santa Ana, CA
Anne Castle, P.A. is a physician assistant with a practice address in Santa Ana, California, and NPI 1669424206, issued on May 16, 2006. Check the license (California PA17545, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Anne Castle
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA17545 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1001 N Tustin Ave, Santa Ana, CA 92705
- Phone
- (714) 953-3500
- Enumerated
- May 16, 2006
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20041027000871); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1001 N Tustin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stewart Brash, M.D.Emergency Medicine Physician1427001163
- Steven Bui, D.O.Anesthesiology Physician1508252883
- Julia Celani, P.T.Physical Therapist1659349165
- Omar Chowdhry, D.O.Anesthesiology Physician1972735074
- Catherine Chung, MDAnesthesiology Physician1205820586
- Brian Cross, MDSpecialist1720072002
Verify Anne Castle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA17545Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average physician assistant in 2024
447 Medicare Part D claims for 320 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 33 claims were for opioids.
Most prescribed
- Cephalexin45 claims
- Azithromycin35 claims
- Prednisone29 claims
- Albuterol Sulfate Hfa25 claims
- Acetaminophen-Codeine21 claims
- Meloxicam21 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $42.76
2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
124 physician assistant records list a practice address in Santa Ana
They are 124 of the 8,904 NPPES records with a practice address in Santa Ana, and 14,451 physician assistant records in California.
All 124 in Santa Ana → All 14,451 in California → Every provider in Santa Ana →
Other physician assistant records in California
- Marcia -Galbraith, PAStockton, CA1407143274
- Danny Abad, PAOrange, CA1477158673
- Lea Dominique Abadies, PATustin, CA1124754254
- Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
- Ramina Abbasi, PA-CSignal Hill, CA1093448300
- Ariel Abbott, PA-CStockton, CA1780334342
- Barrie Abbott, PA-CAnza, CA1861602575
- Elizabeth Abbott, PA-CSan Diego, CA1437540762
- Terri Abbott, P.A.La Jolla, CA1811165566
- Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
Common questions
What is Anne Castle, P.A.'s NPI number?
Anne Castle, P.A.'s National Provider Identifier (NPI) is 1669424206, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Anne Castle, P.A. located?
The NPPES record lists a practice address at 1001 N Tustin Ave, Santa Ana, CA, 92705. Phone: (714) 953-3500. Providers update this record themselves, so call before visiting.
How can I verify Anne Castle, P.A.'s license?
NPPES lists California license number PA17545, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Anne Castle, P.A. prescribe under Medicare Part D?
In 2024, Anne Castle, P.A. had 447 Medicare Part D claims for 320 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.