Amelia Ooi, PA-C
NPI 1558146860 · Physician Assistant · Claremont, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amelia Ooi, PA-C is a Physician Assistant provider in Claremont, CA (NPI 1558146860).
Provider details
- NPI number
- 1558146860
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA63382 (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 tenure25% of score
2 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
196 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 99 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 39 | $115 |
| Urinalysis, Manual Test81002 | 30 | $3 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 16 | $101 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 12 | $7 |
Typical Medicare-allowed amounts for these services range $3–$115 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 50 | 48 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 43 | 41 |
| Azithromycin | 40 | 39 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 26 | 26 |
| Prednisone | 25 | 25 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 23 | 23 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$125 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 3110 Chino Ave Ste 150bChino Hills, CA 91709-1295Phone: (909) 630-7868Fax: (909) 469-2109
- 2333 Foothill Blvd Ste CLa Verne, CA 91750-3027Phone: (909) 392-6511Fax: (909) 469-2137
Registry dates
- Enumerated
- 2023-08-28
- Last updated
- 2026-02-25
- Certified
- 2026-02-25
Frequently asked questions
- What is Amelia Ooi's NPI number?
- Amelia Ooi's National Provider Identifier (NPI) is 1558146860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amelia Ooi's specialty?
- Amelia Ooi is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Amelia Ooi located?
- Amelia Ooi's practice location on file with NPPES is 1601 Monte Vista Ave Ste 190, Claremont, CA 91711-6600.
- What is Amelia Ooi's phone number?
- The practice phone number listed in the NPPES registry for Amelia Ooi is (909) 865-9977.
- Does Amelia Ooi accept Medicare?
- Amelia Ooi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amelia Ooi's NPI active?
- Yes — Amelia Ooi's NPI (1558146860) is active in the NPPES registry as of the last update on 2026-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.