Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1386153237 Individual Practitioner Male Practitioner

Derek Oliver

Physician Assistant • Ventura, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Derek Oliver is a certified Physician Assistant practicing in Ventura, CA. With approximately 9 years of clinical experience since completing medical education in 2017, Derek Oliver delivers high-quality medical care to the local community at 300 HILLMONT AVE.

Derek Oliver is affiliated with County Of Ventura and accepts Medicare assignment.

Frequently performed procedures and clinical services include emergency department visit with moderate level of medical decision making, emergency department visit with low level of medical decision making, emergency department visit for life threatening or functioning severity. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

300 Hillmont Ave

Ventura, CA 930031651

Telephone 8056526000
Associated Practice Facility / Clinic
🏢 Ventura County Medical Center Facility NPI 1417999137

Medicare Profile & Education

Medical School

Other

Graduation Year

2017

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Ventura, CA

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
9 Yrs -2.3 yrs vs City Avg
City Avg: 11.3 Yrs
State Avg: 11.5 Yrs
Regional Practice Density
61 Specialists

Practicing in Ventura, CA (14617 Statewide)

Telehealth Adoption Rate
3.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
85.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Oliver (9 Years) 9 Yrs
Ventura Specialty Average (11.3 Years) 11.3 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2022)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99284 Emergency department visit with moderate level of medical decision making
39 39 $749.00 $106.31
99283 Emergency department visit with low level of medical decision making
22 22 $452.00 $62.95
99285 Emergency department visit for life threatening or functioning severity
14 14 $1092.00 $154.74

Medical Specialties & State Licenses

CMS Verified: 2025-11-18
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License CA 54952

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.

Hospital & Practice Group Affiliations

County Of Ventura

300 Hillmont Ave, Ventura, CA 930031651

Secondary Practice Locations

133 W Santa Clara St

Ventura, CA 930012543

Phone: 8056415600

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Dr. Brad Adler , MD

Pathology - Anatomic Pathology

NPI 1003979618

Doctor of Medicine (M.D.)

Kaylee Hantke

Student in an Organized Health Care Education/Training Program

NPI 1053096883
Dr. Gerald Dalgleish , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1073508511

Doctor of Medicine (M.D.)

Dr. Shanel Stadheim , DNP

Nurse Practitioner - Neonatal, Critical Care

NPI 1083260053

Doctor of Nursing Practice

Barbara Kielty , NNP

Nurse Practitioner

NPI 1083834667
Dr. Julianne Awrey , MD

Emergency Medicine

NPI 1114246287

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
📍
Updated Practice Location February 14, 2019

Registered at 300 HILLMONT AVE, VENTURA, CA 930031651 (Tel: 8056526000)

NPI Profile Active September 22, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location September 22, 2017

Registered at 1600 N ROSE AVE, OXNARD, CA 930303722 (Tel: 8059882500)

📍
Updated Business Mailing Address September 22, 2017

Registered at PO BOX 1108, THOUSAND OAKS, CA 913580108 (Tel: 8053001242)

👤
Provider Name / Credentials Updated September 22, 2017

Recorded as DEREK OLIVER

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 22, 2017

Physician Assistant (License #54952 in CA)

🟢
Initial NPI Registration & Enumeration September 22, 2017

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Derek Oliver. Be the first to share your experience!

Sign in to leave a review for Derek Oliver

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1386153237
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 22, 2017
Last Update: November 18, 2025
Sole Proprietor: No

Mailing Address

Po Box 1108

Thousand Oaks, CA 913580108

Phone: 8053001242

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.