Derek Oliver
Physician Assistant · Ventura, CA
Derek Oliver is a physician assistant with a practice address in Ventura, California, and NPI 1386153237, issued on Sep 22, 2017. Check the license (California 54952, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Derek Oliver
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 54952 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Hillmont Ave, Ventura, CA 93003
- Phone
- (805) 652-6000
- Enumerated
- Sep 22, 2017
- Record last updated
- Nov 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20171103002598); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 300 Hillmont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Derek Oliver in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 54952Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average physician assistant in 2024
24 Medicare Part D claims for 17 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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: $207.06
5 payments; by number, the most common kind was food and beverage; the largest payer was Axogen. The 64,719 providers of this specialty with any payment received $841.65 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
- County OF VenturaVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek Oliver among 14,451 physician assistant records in California
Derek Oliver is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 47% of them.
- NPI issued2017 · 47% of these records are older, 48% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2017 · median 2018 among the 7,214 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 physician assistant records list a practice address in Ventura
They are 61 of the 4,435 NPPES records with a practice address in Ventura, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Ventura → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Melissa Ambrosio, PA-CVentura, CA 930031871837872
- Carrie Anderson, PA-CVentura, CA 930031427321637
- Vicky Bobadilla, PA-CVentura, CA 930031447392022
- Quenby De La Rocha, PAVentura, CA 930031851321939
- Irish Dawn Dorsey, PA-CVentura, CA 930031740623685
- Brianne Enegren, PA-CVentura, CA 930031093017279
- Aaron GoodenoughVentura, CA 930031003101494
- Helena Grace, PAVentura, CA 930031639115835
Common questions
What is Derek Oliver's NPI number?
Derek Oliver's National Provider Identifier (NPI) is 1386153237, issued on Sep 22, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Derek Oliver located?
The NPPES record lists a practice address at 300 Hillmont Ave, Ventura, CA, 93003. Phone: (805) 652-6000. Providers update this record themselves, so call before visiting.
How can I verify Derek Oliver's license?
NPPES lists California license number 54952, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Derek Oliver prescribe under Medicare Part D?
In 2024, Derek Oliver had 24 Medicare Part D claims for 17 beneficiaries; the average among physician assistant prescribers was 830. 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.