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DEREK OLIVER
NPI 1386153237
Physician Assistant in Ventura, CA

Active since September 22, 2017PECOS EnrolledAccepts Medicare Assignment
300 HILLMONT AVE, VENTURA, CA 93003(805) 652-6000 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 18, 2025, Feb 14, 2019, Sep 22, 2017 (3 updates tracked since 2017).

About Derek Oliver NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DEREK OLIVER (NPI 1386153237) is an individual physician assistant in Ventura, California, licensed in California (54952) and active in the NPI registry since September 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Ventura, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1386153237
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameDEREK OLIVER
Location Address300 HILLMONT AVEVentura, CA 93003-1651
Mailing AddressPo Box 1108Thousand Oaks, CA 91358-0108 · (805) 300-1242
Phone(805) 652-6000
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateSeptember 22, 2017
Last NPPES UpdateNovember 18, 20253 updates tracked since enumeration
NPPES CertifiedNovember 18, 2025
✔ NPI 1386153237 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · 54952
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
300 HILLMONT AVE, Ventura, CA 93003
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Secondary Practice Location 1

Location 1133 W Santa Clara StVentura, CA 93001-2543 · Phone (805) 641-5600

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Derek Oliver is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123384369
PECOS Enrollment IDI20171103002598
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93003 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
Established Patient
$77.11 typical visit price
range $20.68 – $151.85
Typical copayment $19.27 (range $5.17 – $37.96)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DANIEL FREITAS
Case Manager/Care Coordinator
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-6161
LINDSAY ANN LOFT FNP
Nurse Practitioner (Family)
300 HILLMONT AVE, BLDG 340, STE 401
VENTURA, CA 93003
Ventura County (805) 641-0141
DENNIS J WATSON
Counselor (Mental Health)
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 562-5907
NATHAN BRODIE
Case Manager/Care Coordinator
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-6161
MARY E. RASMUSSEN REG.NURSE
Registered Nurse
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-3200
KAYLEE MICHELLE JONES HANTKE
Student in an Organized Health Care Education/Training Program
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-6000
ISABELLA GENEVA CHEN M.D.
Internal Medicine (Hematology & Oncology)
300 HILLMONT AVE, BLDG 340, STE 501
VENTURA, CA 93003
Ventura County (805) 652-6218
DR. LINDA J. LEE MD
Pathology (Anatomic Pathology & Clinical Pathology)
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (213) 867-7814

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Derek Oliver's NPI number?

The NPI number for Derek Oliver is 1386153237. It was assigned to this individual provider in the NPPES registry on September 22, 2017.

Where is Derek Oliver located?

Derek Oliver practices at 300 Hillmont Ave, Ventura, CA 93003. The listed phone number is (805) 652-6000.

What is Derek Oliver's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Derek Oliver enrolled in Medicare?

Yes. Derek Oliver is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Derek Oliver was last updated on November 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.