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Dr. Rena Callahan, MD

Oncology
4.2 (21)
Map Pin Small Valencia, CA
Accepting new patients
19 years of experience

Offers telehealth

Overview of Dr. Rena Callahan, MD

Dr. Rena Callahan, MD is an Oncology Specialist in Valencia, CA. They specialize in Oncology, has 19 years of experience, and is board certified in Oncology. They graduated from University Of Pennsylvania School Of Medicine and is affiliated with UCLA Santa Monica Medical Center, Henry Mayo Newhall Hospital and Ronald Reagan UCLA Medical Center.

Dr. Callahan works at California Neurosurgical Institute in Valencia, CA with other offices in Santa Monica, CA and Los Angeles, CA. They frequently treat conditions like Breast Cancer and Deep Vein Thrombosis (DVT) along with other conditions at varying frequencies. They are accepting new patients and accepts Aetna, Anthem and Blue Cross Blue Shield as well as other major insurance plans. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.

FindCare Super Profile Designation
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5/5
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User Ratings (of at least 4.0)
Insurance Accepted
Headshot Available
Accepting New Patients
Conditions Treated and Procedures Performed

Dr. Callahan's Office Locations

  1. 1
    Uc Regents Ucla Dmpg Santa Clarita
    23929 McBean Pkwy Ste 215, Valencia, CA 91355 Icon Directions Right Arrow Directions Phone Icon (310) 829-5471
    Tuesday
    09:00 - 17:00
  2. 2
    Limited To Official Government Duties On
    2020 Santa Monica Blvd Ste 580, Santa Monica, CA 90404 Icon Directions Right Arrow Directions Phone Icon (310) 829-5471
  3. 3
    Ucla 100 Mp # 550, Los Angeles, CA 90095 Icon Directions Right Arrow Directions

Hospital Affiliations
Admitting Hospitals

Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.

  • UCLA Santa Monica Medical Center
  • Henry Mayo Newhall Hospital
  • Ronald Reagan UCLA Medical Center

Experience & Treatment Frequency

NEW FEATURE

What is treatment frequency?

Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:

Very HighFrequency
HighFrequency
NormalFrequency
May Perform

Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.

Search for conditions or procedures.
Breast Cancer
Deep Vein Thrombosis (DVT)
Sickle Cell Disease

Treatment frequency



Many providers have expertise treating multiple conditions or procedures. FindCare uses a variety of data sources to determine which conditions or procedures a provider treats and their level of experience.
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    View All Accepted Carriers

    • Aetna
    • Anthem
    • AvMed
    • Blue Cross Blue Shield
    • Blue Cross Blue Shield of California
    • CareFirst Blue Cross Blue Shield
    • Cigna
    • First Health
    • Health Net of California
    • MultiPlan
    • UnitedHealthCare

    * Please verify this information when scheduling an appointment.

    Ratings & Reviews
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    4.2
    Average provider rating
    Based on 21 ratings
    Patient Ratings (21)
    5 Star
    (17)
    4 Star
    (0)
    3 Star
    (0)
    2 Star
    (0)
    1 Star
    (4)
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    Dr. Callahan's Office & Staff

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    • Total wait time (waiting & exam rooms)

    Experience with Dr. Callahan

    • Level of trust in provider's decisions
    • How well provider explains medical condition(s)
    • How well provider listens and answers questions
    • Hpends appropriate amount of time with patients

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    About Dr. Rena Callahan, MD

    Specialties
    • Oncology
    Specialties
    Years of Experience
    • 19 years of experience
    Years of Experience
    Years of experience represents how long a provider has been practicing in their field since graduating from medical school. Not all providers will have this information available.

    Languages Spoken
    • English
    Languages Spoken
    NPI Number
    • 1487856779
    NPI Number
    A National Provider Identifier (NPI) is a unique 10-digit identifier issued by the government to healthcare providers.

    Education & Certifications

    Fellowship
    • University of California At Los Angeles
    Fellowship
    Residency
    • UCLA
    Residency
    Medical Education
    • University Of Pennsylvania School Of Medicine
    Medical Education
    Board Certifications
    • Oncology
    Board Certifications
    What’s a board certification and why is it important that my provider has one?

    A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

    Frequently Asked Questions

    Dr. Rena Callahan, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. Callahan is offering online scheduling or call the provider’s office for more information.

    Dr. Callahan has indicated that they do offer telehealth services. Please call the provider’s office at for more information.

    Dr. Callahan has seen patients for Breast Cancer and Deep Vein Thrombosis (DVT), and more. You can see other conditions treated by Dr. Callahan on their profile. Please call the provider’s office to confirm all visit reasons.

    21 patients have reviewed Dr. Callahan. The overall rating for this provider is 4.2. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Callahan.

    Whether a person prefers to schedule an appointment online or over the phone with Dr. Callahan, there are benefits to both methods. A person calling to schedule an with Dr. Callahan appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.

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