ALYSSA CASTLE PA
NPI 1356958425
Physician Assistant in Mission Viejo, CA

Q: What is Alyssa Castle's NPI number?

The NPI number for Alyssa Castle is 1356958425. It was assigned to this individual provider in the NPPES registry on September 23, 2020.

Q: What is Alyssa Castle's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Alyssa Castle was last updated on January 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 23, 2020PECOS Enrolled

27700 MEDICAL CENTER RD, MISSION VIEJO, CA 92691(949) 364-1400 Get Directions Write a Review

NPPES record last updated: January 30, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 30, 2023, Aug 29, 2022, Sep 23, 2020 (3 updates tracked since 2020).

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About Alyssa Castle Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALYSSA CASTLE PA (NPI 1356958425) is an individual physician assistant in Mission Viejo, California, licensed in California (PA58530) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356958425

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameALYSSA CASTLECredential: PA

Location Address27700 MEDICAL CENTER RDMission Viejo, CA 92691-6426

Mailing AddressPo Box 80591City Of Industry, CA 91716-8409 · (866) 898-7148

Phone(949) 364-1400

Sole ProprietorNo

Enumeration DateSeptember 23, 2020

Last NPPES UpdateJanuary 30, 20233 updates tracked since enumeration

NPPES CertifiedJanuary 30, 2023

✔ NPI 1356958425 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in CA · PA58530

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

27700 MEDICAL CENTER RD, Mission Viejo, CA 92691

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alyssa Castle Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

36 services36 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

28 services28 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92691 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHELSEA ZIMMERMAN

Nurse Practitioner (Acute Care)