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Adult Hematology and Oncology, Ventura

Adult Hematology and Oncology

Oncology/Hematology • Ventura, CA

About

Adult Hematology and Oncology is an ambulatory care clinic in Ventura, California, offering hematology and oncology services. Located at 300 Hillmont Ave., Bldg 340 Suite 501, the clinic operates Monday through Friday from 8:00 a.m. to 5:00 p.m.

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Clinic Type

Oncology/Hematology

Address

300 Hillmont Ave., Bldg 340 Suite 501, Ventura

Phone

(805) 652-6218

Email

emsagency@ventura.org

Opening Hours

Monday-Friday 8:00am-5:00pm

Website

https://hca.venturacounty.gov/health-clinics/adult-hematology-and-oncology/

Services Offered

  • Adult Hematology and Oncology
  • Ambulatory Care

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

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Photos

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What Patients Say

Overall sentiment across review platforms: mixed

  • UCLA Health (Dr. Mahshid Melody Mosallaei-Benjamin): 4.9/5 (299 reviews (520 ratings))
  • UCLA Health (Dr. Joshua D. Rosenberg): 5.0/5 (378 reviews (644 ratings))
  • 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

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

In the News

Information sourced from the clinic's website as of . Own this clinic? Claim or correct this listing.

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