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Edit this profileAt a glance
- 27700 Medical Center Rd, Mission Viejo, CA 92691
About 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. The provider's National Provider Identifier (NPI) is 1356958425.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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 | Less often than most peers in Physician Assistant |
| 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 — 28 related providers in 4 groups
Other physician assistants in Mission Viejo 4
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2020 at Other 8
Providers who graduated from the same medical school in the same year.
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. Contact the office directly to confirm availability and scheduling.
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
What is Alyssa Castle's education?
Alyssa Castle attended Other, graduating in 2020. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Alyssa Castle have?
Alyssa Castle has 6 years experience. Calculated from a graduation year of 2020, reported in the CMS National Downloadable File.
CMS public data
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
Guide.md listings do not constitute medical advice or an endorsement.