Nicolas Allen Knowles, PA-C
Medical Physician Assistant · Rancho Cucamonga, CA
Nicolas Allen Knowles, PA-C is a medical physician assistant with a practice address in Rancho Cucamonga, California, and NPI 1134846561, issued on Oct 26, 2022. Check the license (California PA61832, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nicolas Allen Knowles
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA61832 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9481 Pittsburgh Ave Ste 200, Rancho Cucamonga, CA 91730
- Phone
- (909) 655-0300
- Enumerated
- Oct 26, 2022
- Record last updated
- Aug 3, 2026
- Medicare enrollment
- Enrolled (PECOS I20241106002755); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 9481 Pittsburgh Ave Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sagarika Basu, PAPhysician Assistant1174295687
- Ludivina De Dios-Del Mundo, NPAcute Care Nurse Practitioner1699437939
- Bhavesh Patel, M.D.Gastroenterology Physician1952543514
- Arwa Zakaria, DOGastroenterology Physician1184037046
Verify Nicolas Allen Knowles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA61832Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average medical physician assistant in 2024
2,785 Medicare Part D claims for 291 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 93 claims were for opioids.
Most prescribed
- Atorvastatin Calcium103 claims
- Ozempic94 claims
- Losartan Potassium89 claims
- Amlodipine Besylate86 claims
- Albuterol Sulfate Hfa77 claims
- Metformin Hcl73 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $78.72
2 payments; by number, the most common kind was food and beverage; the largest payer was CeQur Corporation. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Norton Delgado Family MedicineRancho Cucamonga, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Rancho Cucamonga →
Other medical physician assistant records in California
- Bridget Abajian, PA-CLos Angeles, CA1518677061
- Crispin Abbott, PHYSICIAN ASSISTANTThousand Oaks, CA1063467926
- Abdol Hamid Abdali Hajiabadi, P.A.Santa Ana, CA1285747964
- Jilbert Abnoosian, PALynwood, CA1447300314
- Reema Aboelrish, PA-CFresno, CA1376466144
- Sakina Abowath, P.A.Diamond Bar, CA1326287525
- Selin Abraamyan, PA-CGlendale, CA1144795899
- Antonious Abraham, PA-CCovina, CA1003434275
- Michelle AbrahamSacramento, CA1952875957
- Therese Abraham, P.A.-CGlendale, CA1063726586
Common questions
What is Nicolas Allen Knowles, PA-C's NPI number?
Nicolas Allen Knowles, PA-C's National Provider Identifier (NPI) is 1134846561, issued on Oct 26, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Nicolas Allen Knowles, PA-C located?
The NPPES record lists a practice address at 9481 Pittsburgh Ave Ste 200, Rancho Cucamonga, CA, 91730. Phone: (909) 655-0300. Providers update this record themselves, so call before visiting.
How can I verify Nicolas Allen Knowles, PA-C's license?
NPPES lists California license number PA61832, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nicolas Allen Knowles, PA-C prescribe under Medicare Part D?
In 2024, Nicolas Allen Knowles, PA-C had 2,785 Medicare Part D claims for 291 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.