Provider Profile
Alyssa Castle, PA
Unclaimed ProfileAbout Alyssa Castle
Alyssa Castle, PA is a physician assistant based in Mission Viejo, CA. Medicare claims data shows Alyssa provided 83 services to 83 patients. The services billed most often include emergency department visit with high level of medical decision making, emergency department visit with moderate level of medical decision making, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (949) 364-1400
- Email not available
Practice Locations
27700 MEDICAL CENTER RD
Mission Viejo, CA 92691
Procedures Most Often Billed to Medicare
83 services · 83 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
19 | |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
36 | As often as other peers in Physician Assistant |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
28 | As often as other peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 12 related providers in 2 groups
Other physician assistants in Mission Viejo 4
Same specialty, same city.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Alyssa Castle's specialty?
Alyssa Castle is a physician assistant in Mission Viejo, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Alyssa Castle?
Alyssa Castle is listed at 27700 Medical Center Rd, Mission Viejo, CA 92691. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Alyssa Castle?
The number on file is (949) 364-1400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Alyssa Castle?
Alyssa Castle's National Provider Identifier is 1356958425. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Alyssa Castle have?
Alyssa Castle has 6+ years experience. Registered with an NPI since 2020. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Alyssa Castle known for?
According to Medicare billing data, Alyssa Castle provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Alyssa Castle's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Alyssa Castle. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.