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Tim Callahan

As Transonic’s Director of Clinical Sales & Marketing, Tim Callahan brings a wealth of experience from a long career in medical device sales and marketing that included the position as VP and General Manager for Global Physical Assessment Business for Welch Allyn of Skaneateles, NY. Tim adds his expertise in value messaging, strategic planning, pricing, contract negotiations and business development to the Transonic marketing mix as the company expands its blood flow measurement surgical device offerings to its global market.

Recent Posts

Major advancements in cerebrovascular surgery

Treating microvascular dysfunction

‘The Perfect Stitch’: A Conversation with Dr. Francis Sutter

Standard Checks for Anastomoses and Benefits of Flow Measurement

Confirming the Patency of Cerebrovascular Bypasses

How Do Volume Flow Measurements Complement Imaging in Cerebrovascular Surgery?

Reduce Stroke Risk in Arteriovenous Malformation (AVM) Resection

Telemedicine And Surgical Care: What This Means for the Long-Term

The Top 8 Podcasts and Publications for Surgeons in 2022

5 Myths About Organ Donation Debunked

What Your Heart Says About Your Health

Strokes Can Strike at Any Age: Know the Signs

Do's and Don'ts of Social Media for Surgeons, According to Research

American Heart Month: 9 Fascinating Facts About the Heart

Repairing a Broken Heart: Why You Should Pay Attention to Post-Operative Depression with CABG Patients

The Mediterranean Diet for Heart and Brain Health

Study: Blood Marker Could ID Patients at Risk for Peripheral Artery Disease

Why Measure Flow?

Flow Measurement Study: Measurement of Intraoperative Graft Flow Predicts Radiological Hyperperfusion During Bypass Surgery in Patients with Moyamoya Disease

What's Happening with the Hospital Price Transparency Rule

Robotic IMA Harvesting CABG Protocol from Dr. Francis Sutter

News from STS's 57th Annual Meeting

CT Surgeons Lead the Way in COVID Vaccine Trials

How COVID-19 is Affecting Cardiac Surgery

Top Cardiothoracic Surgeons of 2021 and Trends to Watch

The FDA Appoints its First Chief of Medical Devices Cybersecurity

COVID-19’s Impact on the Surgical Resident Training

What Physicians Need to Know About the Sunshine Act

Financial Hardship is Common Among Families of Children with Congenital Heart Disease

Medical Professionals Question Online Doctor Ratings

Patient Experience During COVID-19: What to Know

Cybercriminals are Exploiting the Pandemic: Here’s What to Know to Protect Your Data

Best Practices for Telehealth and Telemedicine

How Physicians are Experiencing COVID-19

3 Biggest Technology Threats Facing Healthcare

How Distractions in the OR Can Increase the Risk of Errors

How to Better Communicate with Patients While Wearing a Mask

Hospital Spending is Down: 5 Things to Know

What to Know Before Going to Work in A Pandemic Hotspot

How to Improve Patient Adherence

What to Know About Non-Compete Clauses

Physician Contracting: Establishing Job Duties and Liability Insurance

Benefits of Locum Tenens for Physicians and Hospitals

What to Know about The Trump Administration’s Hospital Price Transparency Plan

Employed versus Self-employed: What Physicians Should Consider

How Patient Bias Impacts Care

What Hospitals, Private Practices Should Know About Ransomware Attacks

What to Know About The Rural Physician Shortage

Survey Says Most U.S. Hospitals Don't Meet Minimum Surgical Safety Standards

Video: Cerebrovascular Neurosurgeon on the Importance of Flow Measurement During Cerebrovascular Surgery

Physician Specialists are in Demand: The Latest Information

Healthcare Cybersecurity in 2019: What You Need to Know

What to Know About International Locum Tenens

Does the Sunshine Act Affect Patient Trust?

What Physicians Should Know About MACRA in 2019

Hospital Cleanliness: How Clean is Your Environment?

U.S. Spending on Healthcare: What’s Changed Over the Past Year

Doctor-Patient Communication: How Well do Physicians Listen to Patients?

Surgical Checklists Updates: 4 New Risk Areas from the ACS

State of Cost Transformation 2018: How Hospital Executives Are Dealing With Cost Challenges

The Looming Physician Shortage: Here’s How to Take Action Now

How Hospital Changes Are Affecting Private Practices

Should Doctors Take Medical Ethics Courses?

How GDPR Affects the Healthcare Industry: 6 Things to Know

Leadership in the OR: How Different Styles Could Impact Outcomes

Top Challenges Facing Physicians This Year

Transonic's CEO Shares His Story of Startup Success

How to Attract Potential Patients with Social Media

How to Prepare for a Locum Tenens Physician to Join your Staff

How to Improve Doctor Patient Communication: 4 Tips

The Value of Management Training for Physicians

Physician Recruitment: How to Give It a Boost

7 Healthcare Trends to Watch in 2018

Transonic’s 354C Optima Flowmeter Simplifies Graft Patency Assessment for Surgical Decision-making

Physician Satisfaction: Why Many Intend to Cut Back Hours Practicing

3 Tips for Physicians to be More Productive

How the Post-Op Risk Assessments of General Surgery & Internal Medicine Residents Compare