Expertise in
2
conditions

Dr. Mohamad T. Bittar

Rheumatology
OHSU Hospital
3181 SW Sam Jackson Park Rd, 
Portland, OR 
Accepting New Patients
Offers Telehealth
Referral may be required
Before you request
Expertise in
2
conditions
OHSU Hospital
3181 SW Sam Jackson Park Rd, 
Portland, OR 

Overview

Mohamad Bittar is a Rheumatologist practicing medicine in Portland, Oregon.

Dr. Bittar is highly rated in 2 conditions, according to our data. His clinical expertise encompasses Axial Spondyloarthritis (AxSpA), Ankylosing Spondylitis, Arthritis, and Discoid Lupus Erythematosus (DLE).

He is actively involved in clinical research, co-authoring 22 peer reviewed articles. Dr. Bittar is currently accepting new patients.

Specialties

Rheumatology

Licenses

Internal Medicine in OR

Hospital Affiliations

Ohsu Hospital And Clinics
Peacehealth Southwest Medical Cente

Languages Spoken

English
Arabic
Spanish

Gender

Male

Insurance

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

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
BridgeSpan
  • EPO
  • HMO
Cambia Health Solutions
  • EPO
  • INSURANCE PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Community Health
  • EPO
  • HMO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Magnolia Health
  • HMO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Moda Health
  • EPO
  • PPO
OHSU Health
  • MANAGED MEDICAID PLAN
PacificSource
  • PPO
Regence
  • EPO
  • PPO
Samaritan
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
  • OTHER MEDICARE PART D
Trillium
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 14 Less Insurance Carriers -

Locations

OHSU Hospital
3181 SW Sam Jackson Park Rd, Portland, OR 97239

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.

22 Total Publications

Spondyloarthritis Research and Treatment Network Recommendations for the Referral of Adults With Chronic Back Pain and Suspected Axial Spondyloarthritis to a Rheumatologist.
Spondyloarthritis Research and Treatment Network Recommendations for the Referral of Adults With Chronic Back Pain and Suspected Axial Spondyloarthritis to a Rheumatologist.
Journal: ACR open rheumatology
Published: March 15, 2026
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Before you request
5050 Northeast Hoyt Street, Suite 155, 
Portland, OR 
 (5.0 miles away)
503-215-6819
Languages Spoken:
English
See accepted insurances
Accepting New Patients

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OHSU Hospital

3181 SW Sam Jackson Park Rd, 
Portland, OR 
 (0.1 miles away)
503-494-1793
Languages Spoken:
English

Cailin Sibley is a Rheumatologist practicing medicine in Portland, Oregon. Dr. Sibley is highly rated in 9 conditions, according to our data. Her clinical expertise encompasses Behcet Disease, Neonatal Onset Multisystem Inflammatory Disease, Granulomatosis with Polyangiitis, and Orbital Pseudotumor.

Expertise in
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OHSU Hospital

3181 SW Sam Jackson Park Rd, 
Portland, OR 
 (0.1 miles away)
503-494-8637
Languages Spoken:
English
See accepted insurances

Marcia Friedman is a Rheumatologist practicing medicine in Portland, Oregon. Dr. Friedman is highly rated in 11 conditions, according to our data. Her clinical expertise encompasses Granulomatosis with Polyangiitis, Necrotizing Vasculitis, Behcet Disease, and Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome).

Frequently Asked Questions about Dr. Mohamad T. Bittar

How do I make an appointment with Dr. Mohamad T. Bittar?

You can book an appointment with Dr. Mohamad T. Bittar by calling their office at 503-494-8637. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Mohamad T. Bittar a top-rated expert for Axial Spondyloarthritis (AxSpA)?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Mohamad T. Bittar is classified as an Advanced expert for Axial Spondyloarthritis (AxSpA), 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. Mohamad T. Bittar specialize in?

While Dr. Mohamad T. Bittar is a Rheumatology, they have specific expertise in Axial Spondyloarthritis (AxSpA), Ankylosing Spondylitis, and Arthritis. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Rheumatology.

Does Dr. Mohamad T. Bittar participate in research or clinical trials?

Yes. Dr. Mohamad T. Bittar has published 22 articles and abstracts on conditions like Axial Spondyloarthritis (AxSpA). You can view a list of Dr. Mohamad T. Bittar's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Mohamad T. Bittar accept my insurance?

Dr. Mohamad T. Bittar accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 503-494-8637 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

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