Sharp Mesa Vista Mid City outpatient programs will relocate to Sharp Mesa Vista Hospital by Nov. 10, 2026.

Provider Image

Catherine Weir, DO

No ratings available

Doctor of osteopathic medicine (DO)

Hematology/oncology

(board certified)

Medical Group

Sharp Rees-Stealy

Insurance

A medical group is a network of doctors contracted by health plans to provide patient care. To verify insurance coverage for specific medical groups, contact your health plan.Learn more.

Physician assistants are hightly trained medical providers who can diagnose, treat and manage your care while working with a doctor.

Nurse practitioners are highly trained medical providers who can diagnose, treat and manage your care while working with a doctor.

Insurance plans accepted

Sharp accepts most health insurance. Not all plans are listed. Please contact your insurance company to verify your insurance type and plan.

In-network insurance plans

Schedule an appointment

Accepting new patients

Book appointment

Schedule an appointment

Call to schedule

Sharp Rees-Stealy Frost Street North Hematology and Oncology

858-939-6622
Fax: 858-939-6809

8010 Frost St.
Suite 300
San Diego, CA 92123-2778

Sharp Rees-Stealy La Mesa Hematology and Oncology

619-644-6770
Fax: 619-644-6775

5525 Grossmont Center Drive
Floor 1
La Mesa, CA 91942-3009

Need help?

Questions about insurance coverage or anything else? or call 1-800-827-4277 to speak to a physician referral nurse.

Location and phone

  1. Sharp Rees-Stealy Frost Street North Hematology and Oncology

    8010 Frost St.
    Suite 300
    San Diego, CA 92123-2778
    Get directions

    858-939-6622
    Fax: 858-939-6809

  2. Sharp Rees-Stealy La Mesa Hematology and Oncology

    5525 Grossmont Center Drive
    Floor 1
    La Mesa, CA 91942-3009
    Get directions

    619-644-6770
    Fax: 619-644-6775

Care schedule

Sharp Rees-Stealy La Mesa Hematology and Oncology

5525 Grossmont Center Drive

  •  

    Monday

  •  

    Tuesday

  •  

    Wednesday

  •  

    Thursday

  •  

    Friday

About Catherine Weir, DO

Gender: Female

Education

Touro University California: Medical School
Scripps Green Hospital: Fellowship
Cook County Hospital: Residency

NPI

1922635077

A National Provider Identifier (NPI) is a unique identification number assigned to individual U.S. health care providers.

Insurance plans accepted

Catherine Weir, DO, accepts 34 health insurance plans.

Insurance plans accepted

Sharp accepts most health insurance. Not all plans are listed. Please contact your insurance company to verify your insurance type and plan.

In-network insurance plans

Special recognitions

Guardian Angel image

Recognize this provider

Have you and your family received exceptional care from Catherine Weir, DO? Consider paying tribute to this provider with a Guardian Angel gift.

All affiliated doctors referred by Sharp HealthCare are in good standing with a Sharp hospital or medical group and pay no fees to be included in this service. Doctors are not employees or agents of Sharp HealthCare. Selection is based on your particular needs. Learn more about how doctors and other providers are included in this service and the information displayed here.