About Us
Dr. Terry Gueldner began his surgical career in Manitowoc in the mid 1970’s as an independent surgeon offering general, vascular, diagnostic and surgical services. Over the years, his interest in leg vein disorders grew as he noticed how many people were affected by vein problems and related blood clot disorders. He also realized that the vein care needs of the community were not being met with newer state of the art treatment methods. In order to help fill this healthcare need, he established the Wisconsin Vein Center, a division of Premier Surgical of Wisconsin SC, in 2003.
The Wisconsin Vein Center was developed as a center of excellence for the dedicated treatment of vein disorders. Focusing on treating vein disease has allowed the Wisconsin Vein Center and its staff, to utilize the newest technologies, stay abreast of the latest advancements, and provide the most compassionate and quality patient care possible within an outpatient setting.
While health care delivery has changed over the years, the Wisconsin Vein Center’s professional commitment to excellence in patient care has remained a core value. We deliver a personalized approach to surgical vein care by treating our patients with the same courtesy and respect we would want for our own family members. We believe strongly in providing our patients with on-going education regarding vein disease, and strive to work as partners throughout this process.
Our Staff
Terry L. Gueldner, MD, FACS

Dr. Terry Gueldner is a surgical specialist with over thirty years of clinical experience in General, Thoracic, Vascular, GI & Pulmonary Endoscopy, Laparoscopy Surgery. Currently he has a focus of care for Venous Insufficiency Disorders and is the Founder of the Wisconsin Vein Center of Manitowoc which is a division of Premier Surgical of WI, SC. Dr. Gueldner has published surgical journal articles on lung cancer, heart surgery and given surgical presentations to surgical society members on political action matters, cancer and vein treatment methods and results.
He has been active in local cancer support groups and regional cancer committees. Dr. Gueldner has also served his surgical colleagues as president of two state surgical societies and in leadership positions in health care.
Dr. Gueldner’s primary objective during his years of practice has been to provide the best possible compassionate care for his patients. He has managed to retain an outstanding and dedicated office staff who share his passion in providing this high quality health care to those seeking assistance with their medical needs.
Education:
- BS Degree – University of Wisconsin, Madison
- MD Degree – Medical College of Wisconsin, Milwaukee
- Internship – Virginia Mason Hospital, Seattle, WA
- Surgical Residency and Fellowship – Virginia Mason Hospital and Medical Center, Seattle, WA
Leadership Roles:
- President – WI Surgical Society – A Chapter of the American College of Surgeons (2007-2008)
- President – WI Chapter of the American College of Surgeons (2003-2004)
- Council Member, WI Surgical Society
- Council Member, WI Chapter of the American College of Surgeons
- Cancer Liaison Physician, American College of Surgeons, Commission on Cancer
- Member, District #4 Membership Committee, American College of Surgeons
- President and Committee Chairman of local hospital medical staffs and surgery departments
- Board of Regents Member, Wisconsin Lutheran College, Milwaukee
- Chairman and Board Member, Manitowoc Lutheran High School
Society Membership:
- Certified, American Board of Surgery, Inc.
- Fellow, American College of Surgeons (FACS)
- Wisconsin Surgical Society – A Chapter of the American College of Surgeons
- American Venous Forum (AVF)
- American College of Phlebology (ACP)
- American College of Chest Physicians (ACCP)
- Society American Gastrointestinal Endoscopic Surgeons (SAGES)
- Wisconsin Medical Society
Leanna L. Beaumont, MSN, APNP

Mrs. Leanna L. Beaumont is an experienced Nurse Practitioner, Board Certified by the American Nurses Credential Center as an Adult Health Nurse Practitioner
She earned her Bachelor of Science in Nursing degree at the University of Wisconsin, Eau Claire. After several years of experience working in hospital Intensive Care Units, she went on to complete her Master of Science in Nursing Degree at Marquette University in Milwaukee.
Leanna has experience in a wide range of clinical settings including cardiovascular disease, internal medicine, public health and research. She has specialized in the identification, treatment and prevention of cardiac and vascular disease processes working in both hospital and office settings.
Personal Statement
“I believe in developing a partnership with my patients. Working together ensures comprehensive, quality care tailored to meet the unique needs of each patient.
I am also committed to maintaining a standard of professional excellence by staying abreast of the newest technologies and clinical advances.”
About Nurse Practitioners
Nurse Practitioners (NP) are professional health care providers who offer a unique blend of nursing and medical care. In addition to clinical care, NPs focus on health promotion, disease prevention, health education and counseling.
To become a nurse practitioner, a candidate must first complete a four year Bachelor of Science degree and become a licensed baccalaureate prepared RN.
A two year Master’s Degree in Nursing is required, followed by taking the board certification examination.
Once board certification is obtained, there is on-going mandatory continuing education required to maintain licensure and certification.
Sue, CST, MBS
Professional background:
Worked in the healthcare profession over 35 years (10 years as a Certified Surgical Technician and over 25 years managing surgical practices). Certified as a Medical Business Specialist through Wisconsin State Medical Society.
Premier Surgical of WI & The Wisconsin Vein Center:
Office Manager. Joined the practice in 2003 as the first employee, hired to set up and manage the business aspect of the new practice. Formally opened the doors for business on October 1, 2003 together with Dr. Gueldner. Primary role is to coordinate all aspects of the practice to insure an efficient and smooth+ work flow. Administrative duties include overseeing employee staffing and evaluations, proper coding and billing practices.
Personal Interests:
Married with two married adult children. Enjoys various types of music, traveling, and spending time with family, friends and their Shih-Tzu dog.
Sonja, CMA, PBT (ASCP)
Professional background:
Certified Medical Assistant and Certified Phlebotomy Technician since 1988. Worked as a phlebotomist for 12 years in a clinical lab. Also worked with a local physician assisting in patient care, minor surgery, Mohs surgery, preparing tissues slides for lab analysis and phlebotomy.
Premier Surgical of WI & The Wisconsin Vein Center:
Joined the practice in December 2003. Primary role is spearheading all clinical aspects of the practice, OSHA compliance, and assisting the doctor with patient care. Specialty focus is performing sclerotherapy and surface laser treatment for spider veins.
Personal Interests:
Married with two teenage daughters. Enjoys spending time with family and friends, camping and reading. Active in her church and has taught Sunday school for several years.
Ellen, BS Ed., CSF
Reception / Business Staff
Professional background:
Earned a B.S. in Education at University of Wisconsin, Stout. Previously held various positions in area retail venues and taught cooking classes for young children.
Premier Surgical of WI & The Wisconsin Vein Center:
Joined the practice in 2007. Primary roles are receptionist, scheduler, and Certified Stocking Fitter. In addition to these roles, she also helps with claim follow-up and various other duties in the business office. She implemented the inventory of compression stockings in our practice. Special focus in this area is ordering and overseeing the inventory of compression stockings.
Personal Interests:
Mother of two adult daughters and grandmother of one adorable granddaughter. One hobby that keeps her busy outside of work is her home-based clothing alteration business, which includes designing unique purses.
Rachel, BBA
Professional Background:
Graduated in 2009 with a Bachelor of Arts degree in Business Administration from Wisconsin Lutheran College. Has previously worked in the offices of Health & Wellness and Nursing Home facilities.
Premier Surgical of WI & The Wisconsin Vein Center:
Joined the practice in 2011. Primary role is split between the Business Office and Clinical. Duties in the Business Office include pre-authorizing treatments, charge entry/billing, and back up reception.
Personal Interests:
Enjoys staying active in a variety of sports and outdoor activities such as volleyball, running, swimming, and basketball and also coaches youth volleyball and basketball in the area. Loves spending time with her nieces and nephews.
Cynthia, MOA
Professional Background:
Graduated from Fox Valley Technical College, Appleton in December 2011 from the Medical Office Assistant program.
Premier Surgical of WI & The Wisconsin Vein Center:
Joined the practice in February 2012. Primary roles are receptionist and scheduler
Personal Interests:
Married with 2 adult children. Enjoys spending time with her family and multiple pets. Also loves to shop, crochet and watch old sitcoms.