Catherine Loomis, PA-C
NPI 1548870249 · Physician Assistant · Ladera Ranch, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Loomis, PA-C is a Physician Assistant provider in Ladera Ranch, CA (NPI 1548870249).
Provider details
- NPI number
- 1548870249
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- PA57943 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
483 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 139 | $119 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 110 | $154 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 62 | $50 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus87502 | 45 | $94 |
| Detection Test By Nucleic Acid for Strep (streptococcus, Group A), Amplified Probe Technique87651 | 38 | $34 |
| Automated Urinalysis Test81003 | 37 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 46 | 44 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 28 | 24 |
| Cephalexin | 26 | 26 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 25 | 25 |
| Azithromycin | 24 | 24 |
| Doxycycline Hyclate | 20 | 20 |
| Fluticasone Propionate | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-08-06
- Last updated
- 2020-08-06
- Certified
- 2020-08-06
Frequently asked questions
- What is Catherine Loomis's NPI number?
- Catherine Loomis's National Provider Identifier (NPI) is 1548870249, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Loomis's specialty?
- Catherine Loomis is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Loomis located?
- Catherine Loomis's practice location on file with NPPES is 27522 Antonio Pkwy Ste P3, Ladera Ranch, CA 92694-2166.
- What is Catherine Loomis's phone number?
- The practice phone number listed in the NPPES registry for Catherine Loomis is (949) 267-3141.
- Does Catherine Loomis accept Medicare?
- Catherine Loomis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Loomis's NPI active?
- Yes — Catherine Loomis's NPI (1548870249) is active in the NPPES registry as of the last update on 2020-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.