NPPES file of Aug 9, 2026

Jaymee Castillo, PA-C

Physician Assistant · Fountain Valley, CA

Jaymee Castillo, PA-C is a physician assistant with a practice address in Fountain Valley, California, and NPI 1417429705, issued on Dec 26, 2018. Check the license (California PA56335, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417429705
Name
Jaymee Castillo
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA56335 CA
Self-reported in NPPES; status is on the state search
Practice location
11190 Warner Ave Ste 300, Fountain Valley, CA 92708
Phone
(714) 241-7000
Enumerated
Dec 26, 2018
Record last updated
Jul 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(714) 241-7003
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 11190 Warner Ave Ste 300

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ryan Fan, MDOrthopaedic Surgery Physician1720052459
  2. Gryska Gonzalez, PA-CPhysician Assistant1942843107
  3. Jawad Khan, M.D.Orthopaedic Hand Surgery Physician1003115619
  4. Chung KimNurse Practitioner1386070894
  5. Alyxis Mah, PA-CPhysician Assistant1861016685
  6. Bradley NajacPhysician Assistant1265804132

Verify Jaymee Castillo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA56335
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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90% fewer Medicare Part D claims than the average physician assistant in 2024

83 Medicare Part D claims for 42 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Jaymee Castillo83
  2. Specialty average830

Most prescribed

  1. Pantoprazole Sodium14 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: $14.95

1 payment: food and beverage; the largest payer was Pfizer Inc. 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.

  1. Jaymee Castillo$14.95
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Jaymee Castillo among 14,451 physician assistant records in California

Jaymee Castillo, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 52% of them.

  • NPI issued2018 · 52% of these records are older, 44% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2021 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

61 physician assistant records list a practice address in Fountain Valley

They are 61 of the 2,190 NPPES records with a practice address in Fountain Valley, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Fidel Andrade, PAFountain Valley, CA 927081578547782
  2. Jody Carr, PA-CFountain Valley, CA 927081881882264
  3. Lisa Chan, PA-CFountain Valley, CA 927081831128446
  4. Mitzi D'Aquila, PA-CFountain Valley, CA 927081093919862
  5. Susan Font, PA-CFountain Valley, CA 927081689857229
  6. Shawna Jones, P.A.-CFountain Valley, CA 927081447451786
  7. Steven Lerner, PAFountain Valley, CA 927081891777462
  8. Vinh Ngo, PAFountain Valley, CA 927081386796118

Common questions

What is Jaymee Castillo, PA-C's NPI number?

Jaymee Castillo, PA-C's National Provider Identifier (NPI) is 1417429705, issued on Dec 26, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Jaymee Castillo, PA-C located?

The NPPES record lists a practice address at 11190 Warner Ave Ste 300, Fountain Valley, CA, 92708. Phone: (714) 241-7000. Providers update this record themselves, so call before visiting.

How can I verify Jaymee Castillo, PA-C's license?

NPPES lists California license number PA56335, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Jaymee Castillo, PA-C prescribe under Medicare Part D?

In 2024, Jaymee Castillo, PA-C had 83 Medicare Part D claims for 42 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.