Executive Staff

Brian G. Gannon

Brian G. Gannon


Since Brian G. Gannon joined Gulf Coast Regional Blood Center as president and CEO in February 2006, The Blood Center's Commit for Life program has seen phenomenal growth, with more than a quarter of a million current Commit for Life donors giving blood and saving lives on a regular basis.


Mr. Gannon brings more than 20 years experience as a health care administrator and executive and eight years in corporate product management, and he is uniquely qualified to meet the challenge of providing for the transfusion needs of the world's largest medical community.

Serving for 14 years as president and CEO of The Blood Center for Southeast Louisiana excellently prepared Mr. Gannon for his role here. Prior to his tenure in Louisiana, he held numerous leadership positions, including chief operating officer of Belle Bonfils Memorial Blood Center and Neurosciences Program Administrator at the Swedish Medical Center, both in Denver. His appointment as president and CEO of Gulf Coast Regional Blood Center was a homecoming for Mr. Gannon, as earlier in his career he was a product manager at Armco Steel in Houston.

Mr. Gannon holds a Master of Business Administration degree in Management and a Bachelor of Arts degree in Political Science from the University of Southwestern Louisiana.

Dr. Susan Rossmann

Dr. Susan Rossmann

Chief Medical Officer

Dr. Susan Rossmann is the first Chief Medical Officer of The Blood Center. She joined the staff in September 2001 from her position as director of the blood bank and director of the microbiology and serology departments at Texas Children's Hospital.


Dr. Rossmann completed her undergraduate studies at Mount Holyoke College and received an MA and Ph.D. in anthropology from the University of Michigan. In 1989, she received her M.D. from Baylor College of Medicine, where she also completed her residency in anatomic and clinical pathology. She is board certified in both anatomic and clinical pathology and certified in blood banking/transfusion medicine by the American Board of Pathology.

Dr. Rossmann was actively involved with The Blood Center, even before joining the executive staff. She held memberships on the technical advisory and the education and research committees. Rossmann is also an inspector with the College of American Pathologists' laboratory accreditation committee and a blood bank standards assessor with the American Association of Blood Banks.

Caron Cousins Baker

Caron Cousins Baker

Chief Technical Officer

Caron Cousins Baker, a member of Gulf Coast Regional Blood Center's management staff since 1997, served as director, national donor testing services until 2000. In this position, she was responsible for all infectious disease laboratory testing at The Blood Center as well as for client blood centers in and outside of the Texas Gulf Coast region.


She also directed all aspects of the planning and implementation of nucleic acid testing protocols. Additionally she has had responsibility for required quality planning and implementation of new technology providing improved efficiencies and enhanced cGMPs for testing processes.

Ms. Cousins Baker received her BS degree in biology from Marian College and completed her specialist in blood banking requirements at Milwaukee Blood Center. Prior to joining The Blood Center's staff, she held positions of increasing responsibility at LifeSource Blood Services in Chicago, IL. Just prior to her move, she was managing director, quality programs and responsible head. She also gained critical blood banking background with Gamma Biologicals in Houston, the American Red Cross, and the North Suburban Blood Center in Glenview, IL.

In 2000, she was appointed chief technical officer at The Blood Center. In this position, she assumed responsibility for laboratory services, national testing services and education and training.

Ms. Cousins Baker is a past president of the Chicagoland Blood Bank Society and held various positions with the Council of Community Blood Centers. She is also active with the AABB and America's Blood Centers.

Eric Eaton

Eric Eaton

Chief Financial Officer

Eric Eaton joined Gulf Coast Regional Blood Center in January 2007 as Director of Business Operations. Mr. Eaton was promoted to Chief Financial Officer of The Blood Center in March 2016. In this position, he is responsible for overseeing the Risk Management, Building and Fleet Management and Business Operations departments at The Blood Center.


He graduated with his Bachelor of Business Administration from Sam Houston State University and received a CPA certification from the State of Oklahoma. Following his graduation, he accepted a job at the Oklahoma State Auditor’s Office as a State Auditor and was promoted to Audit Manager, where he not only led and performed audits of many state and local agencies, but was responsible for quality control reviews and preparation of the State’s Comprehensive Annual Financial Reports and State-Wide Single Audit Reports.

Following his time with the Oklahoma State Auditor’s Office, he accepted a job with McConnell, Jones, Lanier, & Murphy LLP as an Audit Manager. During his tenure there, he was promoted to Director of Quality Assurance where he gained valuable experience working with non-profit organizations such as the NAACP, MS Society, and the Gulf Coast Community Services Association that helped to further prepare him for his role at The Blood Center. 

He has nearly 30 years of experience in diversified management and accounting and has significantly increased the fiscal standing of every company where he has been employed. 

Marc Lewis

Marc Lewis

Vice President, Operations

Marc Lewis is the Vice President of Operations and responsible for Production Management, Regional Operations, Neighborhood Donor Centers and Business Development. His standing career in the blood industry began in 1992 when he joined Gulf Coast Regional Blood Center as a Hospital Services representative before moving into various roles within Hospital Services management team.


Mr. Lewis was promoted to the Director of Hospital Services in 2004, with responsibilities of managing the regional blood supply, ensuring patient safety. In 2008 his responsibilities increased when he took on the Director of Production Management role, which included Hospital Services and Component Production. His work in this role increased the efficiency of the organization by establishing a direct line of manufacturing blood and blood products designated for distribution.  

His responsibilities increased again when he took on a new combined role in 2016 as the Director of Production Management, Neighborhood Donor Centers and Regional Operations, overseeing 240 employees. Mr. Lewis was promoted in 2017 to the position of Vice President of Operations that has a multiprong approach to increase efficiency and successful patient outcomes.

Theresa Pina

Theresa Pina

Vice President, Operations

Theresa Pina is the Vice President of Operations, overseeing Marketing, Donor Recruitment and Mobile Operations. She began her career in blood banking at Gulf Coast Regional Blood Center in 2005 as a Recruiter before moving onto various roles in Donor Recruitment management.


Ms. Pina was promoted to the Director of Donor Recruitment in 2009, making her responsible for recruiting more than 198,000 blood products from mobile donors. In 2015, Her responsibilities increased when she took on a second department, Mobile Collections, and then further increased in 2017 when she became VP of Operations. Ms. Pina serves on the board for ADRP, an international industry association for blood bankers. She is a graduate of University of Houston.

Dr. Marsha Bertholf

Dr. Marsha Bertholf

Associate Vice President, Medical Services

Dr. Marsha F. Bertholf earned her undergraduate degree at the University of North Carolina Greensboro and obtained her MT(ASCP). She earned her MD from the University of North Carolina and was a resident in Anatomic and Clinical Pathology at the University of Virginia, where she also completed a fellowship in Blood Banking and Transfusion Medicine.


She is board certified in Anatomic and Clinical Pathology and Blood Banking and Transfusion Medicine. She joined the University of Florida Department of Pathology in 1989. Dr. Bertholf was the Medical Director at The Blood Alliance in Jacksonville, Fla. (now part of OneBlood) from 1994 until she joined Gulf Coast Regional Blood Center in 2017.

Her experience includes donor collections, therapeutic and donor apheresis, Immunohematology reference cases and hospital patient blood management.

Bart Block

Bart Block

Associate Vice President, Management Information Systems

Bart Block is the Associate Vice President, overseeing Management Information Systems. He began his career with Gulf Coast Regional Blood Center in 1996 and was promoted to Director of Management Information Systems in 2001, then to Associate Vice President in 2017. 


He oversees computer systems administration, business intelligence, information technology (IT), application development, and document control. Mr. Block's contributions include implementation of multiple blood establishment computer systems (BECS), ISBT data and label standards, the abbreviated donor history questionnaire, and the organization's first project management program. He holds a Master of Business Administration and a Bachelor of Science from Texas A&M University.

Blood Center News
Every day, someone’s life is being saved.

By Tammie Riley 

I learned something the other day. Every day, someone’s life is being saved. I know that seems obvious, but let that sink in. What may be a normal Thursday for most could be something completely different for someone else. And that’s exactly what happened to donor Gary Gilson. Aug. 16 was one of the most important moments in Gary’s life. Not only did he save lives that day, but someone else saved the life of his loved one, as well.

Hospital tour highlights need

A 3-year-old girl lies in a hospital bed in the middle of the room with monitors attached to her bare chest. She’s awake, but she doesn’t lift her head as we walk into the room. Still, she follows us with her eyes. The only sound we hear from her is a small cough while a nurse comes in to check her stats.


The Blood Center teams up with Sickle Cell Association of Houston

The Gulf Coast Regional Blood Center partnered with the Sickle Cell Association of Houston to host a blood drive Sept. 15 in recognition of Sickle Cell Disease Awareness Month.

Blood transfusion is one treatment used to combat complications from sickle cell disease, a form of anemia most likely to affect people of African descent. Prince and her now 27-year-old daughter, Quannecia McCruse, founded the Sickle Cell Association of Houston years ago to educate and provide resources to the community.


Drive and save lives

Penny, a local teacher with some free time over the summer, has helped us kick off our new Volunteer Driver program. Are you interested in joining us in our mission to save lives? Call us at (713) 791-6262 or email volunteering@giveblood.org.

Overcoming fear: Donating blood for the first time

I’m a scaredy-cat. I readily admit it. I hate needles. That’s always been my excuse for why I don’t volunteer for anything with a needle. Flu shot? No way. Vaccines? I still remember the sheer terror I felt from them growing up. 

We are always #HoustonStrong

We never know when the next tragedy will strike, but we have to be ready when it does come. 

Meet Eden

CYPRESS – There is nothing more American than baseball and saving lives. Everyone who participates in The Gulf Coast Regional Blood Center’s Home Run for Life competition will get a chance at both through June 30.


SuperMax is the hero Houston needs!

Max was born with a genetic disorder (neurofibromatosis type 1) that can cause tumors to grow on his nerve endings, and SuperMax has been his alter ego ever since. 

Gulf Coast Regional Blood Center mourns Barbara Bush

Barbara Bush helped save lives in our community, and we celebrate her lifetime of accomplishments. The former First Lady set the bar high in her commitment to helping others.


Dr. Charles Drew: A Blood Banking Pioneer

Here at The Blood Center, we pride ourselves on being an organization of diversity. We work together to save and sustain lives, and we each bring a unique perspective when it comes to fulfilling our mission.

Tying the knot and saving lives

Hurricane Harvey destroyed homes, cars and many other things, but one thing it couldn’t destroy is the compassion for others in newlywed couple Gilbert and Stefanie Cruz. Gilbert and Stefanie were set to get married just a few days after Harvey passed, but due the storm’s aftermath they had to alter all of their plans on a moment’s notice.


Blood on ambulances helps EMS agencies save more lives

Gulf Coast Regional Blood Center has partnered with two local agencies providing emergency medical services to help save more lives when time is of the essence, now administering whole blood to patients on the ground.

Donor coaches hit the road sporting new look, features

In the last two years, five of The Blood Center's donor coaches have been refurbished. Find out why this is such an important process.

Circle of Life Bike Tour celebrates life

The Lone Star Circle of Life bike tour visits Texas cities to raise awareness of the need for blood, marrow, organ and tissue donations to honor those impacted by these donation types. This year’s eight-day, 600-mile tour included stops in Houston and College Station.

Blood Center Resources

Our mission is to partner with the community to save and sustain lives by providing a safe supply of blood, blood components and related services.

Gulf Coast Regional Blood Center
1400 La Concha Lane
Houston, TX 77054

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