Expertise in
3
conditions

Dr. Katrina C. O'halloran

Hematology | Oncology
Children's Hospital Los Angeles
4650 W Sunset Blvd, 
Los Angeles, CA 
Expertise in
3
conditions
Children's Hospital Los Angeles
4650 W Sunset Blvd, 
Los Angeles, CA 

Overview

Katrina O'halloran is a Hematologist and an Oncologist practicing medicine in Los Angeles, California.

Dr. O'halloran is highly rated in 3 conditions, according to our data. Her clinical expertise encompasses Medulloblastoma, Pediatric Low-Grade Glioma (pLGG), Embryonal Tumor with Multilayered Rosettes, and Glioma.

She is actively involved in clinical research, co-authoring 13 peer reviewed articles.

Specialties

Hematology
Oncology

Languages Spoken

English

Gender

Female

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID

Locations

Children's Hospital Los Angeles
4650 W Sunset Blvd, Los Angeles, CA 90027

Additional Areas of Focus

Dr. O'halloran has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Immune Thrombocytopenic Purpura (ITP)
Neurofibromatosis Type 1 (NF1)

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

13 Total Publications

FOXR2-activated CNS neuroblastoma: Characterized by variable structural disruption of the FOXR2 regulatory region, recurrent copy number alterations, and elevated FOXR2 expression.
FOXR2-activated CNS neuroblastoma: Characterized by variable structural disruption of the FOXR2 regulatory region, recurrent copy number alterations, and elevated FOXR2 expression.
Journal: Neuro-oncology pediatrics
Published: April 14, 2026
Similar Doctors
Expertise in
11
conditions
Dr. Thomas D. Coates
Hematology | Oncology
Expertise in
11
conditions
Dr. Thomas D. Coates
Hematology | Oncology
Referral may be required

Office

4650 W Sunset Blvd # 54, 
Los Angeles, CA 
 (0.1 miles away)
323-361-4624
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Thomas Coates is a Hematologist and an Oncologist practicing medicine in Los Angeles, California. Dr. Coates is highly rated in 11 conditions, according to our data. His clinical expertise encompasses Hemoglobinopathy, Anemia, Congenital Hemolytic Anemia, Splenectomy, and Bone Marrow Transplant.

Expertise in
55
conditions
Dr. Stephen J. Forman
Hematology | Oncology
Expertise in
55
conditions
Dr. Stephen J. Forman
Hematology | Oncology
Referral may be required

City Of Hope Comprehensive Cancer Center-Duarte

1500 Duarte Rd, 
Duarte, CA 
 (18.3 miles away)
888-304-3959
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Stephen Forman is a Hematologist and an Oncologist practicing medicine in Duarte, California. Dr. Forman is highly rated in 55 conditions, according to our data. His clinical expertise encompasses Non-Hodgkin Lymphoma, Acute Myeloid Leukemia (AML), Graft Versus Host Disease (GvHD), Bone Marrow Transplant, and Bone Marrow Aspiration.

Expertise in
31
conditions
Dr. Arun S. Singh
Hematology | Oncology
Expertise in
31
conditions
Dr. Arun S. Singh
Hematology | Oncology
Referral may be required

Sandra Fallon M.D. Inc.

2020 Santa Monica Blvd Ste 580, 
Santa Monica, CA 
 (11.6 miles away)
310-829-5471
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Arun Singh is a Hematologist and an Oncologist practicing medicine in Santa Monica, California. Dr. Singh is highly rated in 31 conditions, according to our data. His clinical expertise encompasses Adult Soft Tissue Sarcoma, Liposarcoma, Ewing Sarcoma, Tissue Biopsy, and Bone Marrow Aspiration.

Frequently Asked Questions about Dr. Katrina C. O'halloran

How do I make an appointment with Dr. Katrina C. O'halloran?

You can book an appointment with Dr. Katrina C. O'halloran by calling their office at 323-361-2121. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Katrina C. O'halloran a top-rated expert for Medulloblastoma?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Katrina C. O'halloran is classified as an Advanced expert for Medulloblastoma, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Katrina C. O'halloran specialize in?

While Dr. Katrina C. O'halloran is a Hematology, they have specific expertise in Medulloblastoma, Pediatric Low-Grade Glioma (pLGG), and Embryonal Tumor with Multilayered Rosettes. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Hematology.

Does Dr. Katrina C. O'halloran participate in research or clinical trials?

Yes. Dr. Katrina C. O'halloran has published 13 articles and abstracts on conditions like Medulloblastoma. You can view a list of Dr. Katrina C. O'halloran's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Katrina C. O'halloran accept my insurance?

Dr. Katrina C. O'halloran accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 323-361-2121 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. O'halloran's expertise for a condition
ConditionClose
      View All 30 Experienced Conditions
      Want to save this doctor for later?
      Sign Up
      Is this your doctor?
      Find A Second Opinion
      Not sure about your diagnosis?
      Check Your Symptoms
       
       
       
       
      Learn about our expert tiers
      Learn More
      Are you the provider on this profile?
      Claim Profile