Nicolas Knowles, PA-C
NPI 1134846561 · Medical Physician Assistant · Rancho Cucamonga, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicolas Knowles, PA-C is a Medical Physician Assistant provider in Rancho Cucamonga, CA (NPI 1134846561).
Provider details
- NPI number
- 1134846561
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA61832 (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 tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 103 | 35 |
| Semaglutidebrand: Ozempic | 94 | 18 |
| Losartan Potassium | 89 | 25 |
| Amlodipine Besylate | 86 | 28 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 77 | 29 |
| Metformin Hcl | 73 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$79 across 2 records (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
Registry dates
- Enumerated
- 2022-10-26
- Last updated
- 2023-03-20
- Certified
- 2023-03-20
Frequently asked questions
- What is Nicolas Knowles's NPI number?
- Nicolas Knowles's National Provider Identifier (NPI) is 1134846561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicolas Knowles's specialty?
- Nicolas Knowles is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nicolas Knowles located?
- Nicolas Knowles's practice location on file with NPPES is 8283 Grove Ave Ste 202, Rancho Cucamonga, CA 91730-3140.
- What is Nicolas Knowles's phone number?
- The practice phone number listed in the NPPES registry for Nicolas Knowles is (909) 527-4909.
- Does Nicolas Knowles accept Medicare?
- Nicolas Knowles is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicolas Knowles's NPI active?
- Yes — Nicolas Knowles's NPI (1134846561) is active in the NPPES registry as of the last update on 2023-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.