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Edit this profileAt a glance
- 27522 Antonio Pkwy Ste P3, Ladera Ranch, CA 92694
About Catherine Loomis
Catherine Loomis, PA-C is a physician assistant practicing in Ladera Ranch, CA. Catherine trained at Tufts University School of Medicine, graduating in 2020. Medicare claims data shows Catherine provided 483 services to 476 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen. This provider record is associated with NPI 1548870249.
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) 267-3141
- Email not available
Practice Locations
27522 ANTONIO PKWY STE P3
Ladera Ranch, CA 92694
Procedures Most Often Billed to Medicare
483 services · 476 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 2 views | Imaging | 71046 |
35 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
139 | More often than most peers in Physician Assistant |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
110 | More than most peers in Physician Assistant |
| Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | Lab test | 87635 |
62 | More often than most peers in Physician Assistant |
| Detection test by nucleic acid for multiple types influenza virus | Lab test | 87502 |
45 | More often than most peers in Physician Assistant |
| Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique | Lab test | 87651 |
38 | More often than most peers in Physician Assistant |
| Automated urinalysis test | Lab test | 81003 |
37 | More often than most peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
17 | Less often than most 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 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 26 related providers in 4 groups
Other physician assistants in Ladera Ranch 2
Same specialty, same city.
Trained at Tufts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2020 at Tufts University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 2 views 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Catherine Loomis's specialty?
Catherine Loomis is a physician assistant in Ladera Ranch, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Catherine Loomis?
Catherine Loomis is listed at 27522 Antonio Pkwy Ste P3, Ladera Ranch, CA 92694. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Catherine Loomis?
The number on file is (949) 267-3141. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Catherine Loomis?
Catherine Loomis's National Provider Identifier is 1548870249. 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 Catherine Loomis's education?
Catherine Loomis attended Tufts University School of Medicine, graduating in 2020. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Catherine Loomis have?
Catherine Loomis has 6 years experience. Calculated from a graduation year of 2020, reported in the CMS National Downloadable File.
CMS public data
What is Catherine Loomis known for?
According to Medicare billing data, Catherine Loomis performs imaging including x-ray of chest, 2 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Catherine Loomis's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Catherine Loomis. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.