Adult Hematology and Oncology
Oncology/Hematology • Ventura, CA
Clinic Type
Oncology/Hematology
Address
300 Hillmont Ave., Bldg 340 Suite 501, Ventura
Phone
(805) 652-6218
emsagency@ventura.org
Opening Hours
Monday-Friday 8:00am-5:00pm
Services Offered
Insurance & Payment
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Languages Spoken
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FAQs
What are the clinic hours?
Ambulatory Care Monday-Friday 8:00am-5:00pm.
What is the street address for the Adult Hematology and Oncology clinic?
300 Hillmont Ave., Bldg 340 Suite 501, Ventura, CA 93003.
What is the main contact number?
Adult Hematology and Oncology: (805) 652-6218.
Is there an after-hours contact?
After Hours Contact: (805) 652-6100.
Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- UCLA Health (Dr. Mahshid Melody Mosallaei-Benjamin): 4.9/5
- UCLA Health (Dr. Joshua D. Rosenberg): 5.0/5
- Yelp (Ventura County Hematology-Oncology Specialists): 2.5/5 (7 reviews)
Patients praise
- physicians described as thorough, supportive, attentive, and responsive
- patients appreciate doctors who listen to questions and provide detailed explanations
- some office staff praised for being caring, attentive, and helpful
Common complaints
- complaints regarding unhelpful administrative staff and billing issues related to insurance changes
- some patients have expressed deep dissatisfaction with care quality and communication experiences
"She really listens to me and is always very thoughtful when I ask her questions. I cannot say enough good things about her. Wonderful physician."
— UCLA Health Patient Review"Hands down, Dr. Rosenberg is the smartest, most attentive, clear thinking, problem solving Hematologist I have met, or had the pleasure of calling my doctor."
— UCLA Health Patient Review"I went there for 14 months and it was so bad I had nightmares and friends kept telling me I should file a malpractice lawsuit."
— Yelp ReviewSynthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].
In the News
- Medical Oncology in Ventura, CA | Community Memorial Healthcare
- Cancer | Community Memorial Healthcare
- Cancer Center in Ventura, CA | Community Memorial Healthcare — Dec 22, 2025
- Ventura County Oncology Hematology Specialists Joins OneOncology, Opens New Clinics — Dec 2, 2025
- Community Memorial Healthcare expands Ventura cancer program | Pacific Coast Business Times — Jan 26, 2026
Information sourced from the clinic's website as of July 10, 2026.
More oncology/hematology clinics in Ventura
Ventura County Hematology Oncology Specialists is a private medical group delivering oncology and hematology care in Ventura County, California. Founded in 1971 and headquartered in Oxnard, the practice operates multiple offices (including Camarillo and Ventura) and is involved in cancer center leadership within the region. Services commonly include outpatient infusion therapy, chemotherapy, immunotherapy, and supportive hematology/oncology care. Key details: - Location: Oxnard HQ with six office sites across Ventura County (Camarillo, Oxnard, Ventura) - Specialties: Medical oncology, hematology, infusion therapy - Contact: appointment@venturaoncology.com; main offices in Oxnard, Camarillo, and Ventura - Organization: Private, physician-led practice with multiple board-certified physicians; active in regional cancer care networks (Cancer Center of Ventura County, Coastal Communities Cancer Center) - Notable stats: Approx. 8 employees (growth noted); annual revenue around $11.1M If you’re seeking specific office locations or to book an appointment, use the contact info or visit venturaoncology.com.
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