Timothy R. Billiar
Experienced in Cholestasis

Dr. Timothy R. Billiar

General Surgery
UPMC
UPMC Division Of Trauma And General Surgery
3601 5th Avenue, Suite 6B, 
Pittsburgh, PA 
On Staff At
Accepting New Patients

Experienced in Cholestasis
UPMC
UPMC Division Of Trauma And General Surgery
3601 5th Avenue, Suite 6B, 
Pittsburgh, PA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Timothy Billiar is a General Surgeon in Pittsburgh, Pennsylvania. Dr. Billiar is rated as an Experienced provider by MediFind in the treatment of Cholestasis. His top areas of expertise are Hepatic Ischemia, Low Blood Pressure, Necrosis, Secondary Peritonitis, and Lung Transplant. Dr. Billiar is currently accepting new patients.

His clinical research consists of co-authoring 392 peer reviewed articles. MediFind looks at clinical research from the past 15 years.

Specialties
General Surgery
Licenses
Specialist in PA
Board Certifications
American Board Of Surgery
Languages Spoken
English
Gender
Male

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
Cigna
  • EPO
  • HMO
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
PA Health and Wellness
  • HMO
  • MANAGED MEDICAID PLAN
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
UPMC
  • EPO
  • PPO
View 4 Less Insurance Carriers -

Locations

UPMC Division of Trauma and General Surgery
3601 5th Avenue, Suite 6B, Pittsburgh, PA 15213
Call: 412-647-0635

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.


392 Total Publications

Correction: Plumbagin protects mice from lethal Sepsis by modulating immunometabolism upstream of PKM2.
Correction: Plumbagin protects mice from lethal Sepsis by modulating immunometabolism upstream of PKM2.
Journal: Molecular medicine (Cambridge, Mass.)
Published: July 27, 2025
View All 392 Publications
Similar Doctors
Advanced in Cholestasis
Dr. James W. Marsh
Transplant Surgery | General Surgery
Advanced in Cholestasis
Dr. James W. Marsh
Transplant Surgery | General Surgery

West Virginia University Medical Corporation

1 Medical Ctr Dr, 
Morgantown, WV 
 (54.6 miles away)
304-293-4500
Languages Spoken:
English
See accepted insurances
Accepting New Patients

James Marsh is a Transplant Surgeon and a General Surgeon in Morgantown, West Virginia. Dr. Marsh is rated as an Advanced provider by MediFind in the treatment of Cholestasis. His top areas of expertise are Cholestasis, Fibrolamellar Carcinoma, Cholangiocarcinoma (Bile Duct Cancer), Liver Embolization, and Hepatectomy. Dr. Marsh is currently accepting new patients.

Kyle A. Soltys
Advanced in Cholestasis
Dr. Kyle A. Soltys
General Surgery
Advanced in Cholestasis
Dr. Kyle A. Soltys
General Surgery

UPMC Children's Hospital Of Pittsburgh, Pediatric Transplant Services

4401 Penn Avenue, 
Pittsburgh, PA 
 (1.6 miles away)
412-569-4132
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Kyle Soltys, MD, is a board-certified pediatric liver transplant surgeon at UPMC Children’s Hospital of Pittsburgh and an associate professor of Surgery at the University of Pittsburgh School of Medicine. Dr. Soltys earned his medical degree from the Boston University School of Medicine. He then completed a General Surgery Residency at the University Hospital Department of Surgery in Newark, NJ, followed by a Transplant Fellowship at Mount Sinai Medical Center, Recanati-Miller Transplant Institute. Finally, he completed a Transplantation Fellowship at UPMC’s Thomas E. Starzl Transplant Institute. His research and clinical interests include late graft loss in pediatric transplantation, infectious complications of pediatric transplant, ischemia/reperfusion injury in fatty liver models, preservation injury and post-transplant lymphoproliferative disorders. View Dr. Soltys' full list of publications from PubMed. Dr. Soltys is rated as an Advanced provider by MediFind in the treatment of Cholestasis. His top areas of expertise are Crigler-Najjar Syndrome, Cholestasis, Progressive Familial Intrahepatic Cholestasis Type 1, Liver Transplant, and Small Bowel Resection.

George V. Mazariegos
Experienced in Cholestasis
Dr. George V. Mazariegos
General Surgery
Experienced in Cholestasis
Dr. George V. Mazariegos
General Surgery

UPMC Children's Hospital Of Pittsburgh, Pediatric Transplant Services

4401 Penn Avenue, 
Pittsburgh, PA 
 (1.6 miles away)
412-450-3161
Languages Spoken:
English, Spanish
See accepted insurances
Accepting New Patients
Offers Telehealth

George V. Mazariegos, MD, FACS, specializes in pediatric transplant surgery at UPMC Children’s Hospital of Pittsburgh. He is certified by the American College of Surgeons and is chief of Pediatric Transplantation at UPMC while holding the title of Jamie Lee Curtis Chair in Transplantation Surgery. He received his medical degree from Northwestern University Medical School, completed his residency at Michigan State University, followed by fellowships at UPMC in critical care medicine, and the Thomas E. Starzl fellowship in transplantation, hepatic, and multivisceral transplantation. Dr. Mazariegos’ clinical interests include treatment of pediatric patients who have liver and intestinal disease that require transplantation or hepatobiliary surgery. He is a member of the Society of University Surgeons, the American Surgical Association, and the Pediatric Committee of the International Liver Transplant Society. He and colleagues recently founded the Starzl Network for Excellence in Pediatric Transplantation, a learning health system focused on accelerating innovation and patient centered care in pediatric transplantation. Dr. Mazariegos lives in Oakland with his wife and three children. View Dr. Mazariegos's full list of publications from PubMed. Dr. Mazariegos is rated as a Distinguished provider by MediFind in the treatment of Cholestasis. His top areas of expertise are Crigler-Najjar Syndrome, Biliary Atresia, Dihydrolipoamide Dehydrogenase Deficiency, Liver Transplant, and Small Bowel Resection.

VIEW MORE CHOLESTASIS DOCTORS

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. Billiar's expertise for a condition
ConditionClose
      • Advanced
      • Hepatic Ischemia
        Dr. Billiar is
        Advanced
        . Learn about Hepatic Ischemia.
        See more Hepatic Ischemia experts
      • Low Blood Pressure
        Dr. Billiar is
        Advanced
        . Learn about Low Blood Pressure.
        See more Low Blood Pressure experts
      • Necrosis
        Dr. Billiar is
        Advanced
        . Learn about Necrosis.
        See more Necrosis experts
      • Experienced
      • Acute Respiratory Distress Syndrome (ARDS)
        Dr. Billiar is
        Experienced
        . Learn about Acute Respiratory Distress Syndrome (ARDS).
        See more Acute Respiratory Distress Syndrome (ARDS) experts
      • Breast Cancer
        Dr. Billiar is
        Experienced
        . Learn about Breast Cancer.
        See more Breast Cancer experts
      • Cholestasis
        Dr. Billiar is
        Experienced
        . Learn about Cholestasis.
        See more Cholestasis experts
      • Liver Cancer
        Dr. Billiar is
        Experienced
        . Learn about Liver Cancer.
        See more Liver Cancer experts
      • Lung Transplant
        Dr. Billiar is
        Experienced
        . Learn about Lung Transplant.
        See more Lung Transplant experts
      • Peritonitis
        Dr. Billiar is
        Experienced
        . Learn about Peritonitis.
        See more Peritonitis experts
      View All 9 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
      For Patients
      • Our Story
      • How MediFind Works
      • Conditions A-Z
      • Doctor Directory
      • Symptoms Directory
      • Procedures Directory
      • Treatment Directory
      • Drug Directory
      • Infusion Center Finder
      • FAQ
      • Contact Us
      For Providers and Practices
      • Claim Your Profile
      • Newsroom
      Business Solutions
      • Provider
      • Network Solutions
      Additional Resources
      • Consumer Health Data Privacy Policy
      • Privacy Policy
      • Terms of Use
      • Advertising Policy
      • Content Policy
      Subscribe to our newsletter

      Sign up to stay informed about MediFind and get wellness sent your way.

      Close

        By subscribing, I agree to MediFind's Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.

        Bullet PinMediFind
        Follow us on
        This information is not intended as a substitute for informed medical advice. You should work with a licensed professional to diagnose and treat health conditions. We let the data speak for itself, MediFind does not endorse any healthcare providers.
        © 2026 All Rights Reserved

        Request an Appointment

        If you are experiencing a medical emergency, call 9-1-1.

        MediFind will contact the provider for your appointment request. You’ll receive status updates by email. Your provider or MediFind will reach out to you directly by phone or email to schedule your appointment or request additional information.

        Patient Details

        This information is for the patient who will be seen at the appointment.

          Close

          Returning patient? Use your address on file with the provider.

          Insurance Details

          Please provide information of the primary insurance holder as the practice may require this information to schedule.

          Insurance Provider *
          Insurance ProviderClose

          Appointments Details

          Let’s get more information about your appointment.

                  0 / 1000
                  0 / 1000
                  By pressing the Submit button you are agreeing to MediFind’s Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.