Photo of Dr. Mirela Titianu

Dr. Mirela Titianu, MD

Concierge Internal Medicine physician, Irvine, CA

Rheumatologist OnCall

Dr. Mirela Titianu is a Concierge Internal Medicine physician at Rheumatologist OnCall, with a focus on weight loss and lifestyle medicine.

19712 MacArthur Blvd, Suite 100, Irvine, CA 92612
At a glance
Practice model
Direct-pay, in person and telehealth
Board certification
Internal medicine, obesity medicine, lifestyle medicine
Telehealth
Practice offers it across 20 states

Facts on this page last checked October 2026. How we check doctors

About Dr. Titianu

Dr. Titianu is board certified in internal medicine, obesity medicine and lifestyle medicine. She is a Menopause Society Certified Practitioner and a Certified Nutrition Coach through NASM. She is a physician at Rheumatologist OnCall, focused on internal medicine, weight loss and lifestyle medicine.

She helps patients with menopause, perimenopause, hormone-related symptoms, obesity medicine, sustainable weight loss and nutrition, including people living with arthritis and autoimmune diseases.

Membership and fees

Rheumatologist OnCall is a direct-pay practice offering in-person and telehealth visits.

Services

Menopause Perimenopause Hormone-related symptoms Obesity medicine Lifestyle medicine Sustainable weight loss Nutrition
What internal medicine doctors commonly treat

Licenses and credentials

Board certification
Internal medicine, obesity medicine, lifestyle medicine
Other certification
Menopause Society Certified Practitioner, NASM Certified Nutrition Coach

Hospital and practice affiliations

Physician at Rheumatologist OnCall

Location

19712 MacArthur Blvd, Suite 100, Irvine, CA 92612
Rheumatologist OnCall practice page
Directions

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Questions patients ask

Is Dr. Titianu board certified?

Dr. Titianu is board certified in internal medicine, obesity medicine and lifestyle medicine.

Does Dr. Titianu offer telehealth?

Rheumatologist OnCall offers in-person and telehealth visits. The practice offers telehealth across 20 states.

What does Dr. Titianu help patients with?

Dr. Titianu helps patients with menopause, perimenopause, hormone-related symptoms, obesity medicine, lifestyle medicine, sustainable weight loss and nutrition.

What certifications does Dr. Titianu hold?

Dr. Titianu is a Menopause Society Certified Practitioner. She is also a Certified Nutrition Coach through NASM.

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