Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Medical School: Chicago College of Osteopathic Medicine – Downers Grove, IL
Residency
Diagnostic Radiology: University of California San Diego – San Diego, CA
Internship
General Surgery: Exempla St. Joseph Hospital – Denver, CO
Fellowship
Vascular and Interventional Radiology: University of Washington – Seattle, WA
Cosette Stahl, DO, practices as a vascular and interventional radiologist at the RIA Endovascular location in Greenwood Village, Colorado.
Dr. Stahl studied medicine at the Medical School of the Chicago College of Osteopathic Medicine in Downers Grove, Illinois, driven by her intellectual curiosity and a desire to serve the community. During her medical training, she developed an interest in anatomy and minimally invasive procedures, resulting in her specializing in interventional radiology.
She completed a residency in diagnostic radiology at the University of California San Diego and interned in general surgery at Exempla St. Joseph Hospital in Denver, Colorado. Dr. Stahl also completed a fellowship in vascular and interventional radiology at the University of Washington in Seattle.
Dr. Stahl is licensed by several state medical boards across the country, including Texas, Colorado, Kansas, Nebraska, and Hawaii. She also holds licenses from the Osteopathic Medical Board of California, the Washington State Department of Health, and the American Board of Radiology in Diagnostic Radiology.
Her publications cover topics like radiation protection during fluoroscopy and imaging for intrathoracic mediastinal thyroid goiters. Dr. Stahl is excited by the potential of interventional radiology to interact with all medical specialties.
In her free time, Dr. Stahl enjoys the great outdoors of Colorado as an avid skier, hiker, and cycler, sometimes in the company of her family and poodle. She is also interested in cooking and yoga.
Medical School: Case Western Reserve University – Cleveland, OH
Residency
Diagnostic Radiology: University of Utah – Salt Lake City, UT
Fellowship
Vascular and Interventional Radiology: Medical College of Wisconsin – Milwaukee WI
Board Certifications
Board Certified Diagnostic Radiology 2012
CAQ-Vascular and Interventional Radiology 2014
Y90 Authorized User – State of Colorado 2016
Registered Physician in Vascular Interpretation (RPVI) 2018
Greg Martin, MD, is a board-certified vascular and interventional radiologist providing exceptional care at RIA Endovascular in Greenwood Village, Colorado. Dr. Martin’s dedication to patient well-being and innovative solutions has made him an invaluable asset to the team.
Dr. Martin attended medical school at Case Western Reserve University in Cleveland, Ohio. After earning his medical degree, he undertook a rigorous residency in diagnostic radiology at the University of Utah in Salt Lake City.
Dr. Martin’s commitment to excellence in interventional radiology encouraged him to complete a vascular and interventional radiology fellowship at the Medical College of Wisconsin in Milwaukee, further enhancing his expertise.
With multiple board certifications, including in diagnostic radiology and interventional radiology, and a Certificate of Added Qualification (CAQ) in vascular and interventional radiology, Dr. Martin is uniquely qualified to offer patients a comprehensive range of cutting-edge treatments and procedures. He is also a Y90 Authorized User in Colorado and became a Registered Physician in Vascular Interpretation (RPVI) in 2018, highlighting his dedication to staying at the forefront of his field.
Dr. Martin’s areas of expertise include complex vascular interventions, ensuring patients benefit from the latest medical advancements. His unwavering commitment to patient care, combined with his extensive education and certifications, makes him an invaluable member of the RIA Endovascular team, providing patients with exceptional medical care and innovative solutions.
Medical School: University of California, Los Angeles David Geffen School of Medicine – Los Angeles, CA
Internship
Internal Medicine: University of Nebraska Medical Center – Omaha, NE
Residency
Radiology: University of Nebraska Medical Center – Omaha, NE
Fellowship
Vascular and Interventional Radiology: University of New Mexico Hospital – Albuquerque, NM
Sean Walker, MD, is a board-certified vascular and interventional radiologist in Denver, Colorado. Dr. Walker is highly trained and has more than a decade of experience caring for patients of all ages.
He earned his medical degree from the David Geffen School of Medicine at the University of California, Los Angeles, and completed an internship in internal medicine at the University of Nebraska Medical Center in Omaha.
Dr. Walker stayed in Omaha to complete a residency in radiology at the University of Nebraska Medical Center and then relocated to Albuquerque, New Mexico, for a fellowship in vascular and interventional radiology at the University of New Mexico Hospital.
He has published an array of research in medical journals and has presented his findings at medical conventions nationwide.
Dr. Walker enjoys staying active and spending time with family and friends when he’s not at the office.
He looks forward to maximizing patients’ quality of life and compassionately welcomes them to one of the multiple hospital sites he covers in Denver, Colorado.
Diagnostic Radiology: University of Colorado – Aurora, CO
Fellowship
Interventional Radiology: University of Colorado – Aurora, CO
Board Certification
American Board of Radiology 2018
Matt Brown, MD, is a board-certified vascular and interventional radiologist at RIA Endovascular. Dr. Matt Brown sees patients at the practice's Greenwood Village, Colorado office.
He pursued medical school at New York Medical College in Valhalla, New York, followed by an internship in Preliminary Medicine at Greenwich Hospital in Greenwich, Connecticut.
He completed his residency in Diagnostic Radiology at the University of Colorado in Aurora and a fellowship in Interventional Radiology at the University of Colorado.
In 2018, Dr. Matt Brown obtained board certification from the American Board of Radiology (ABR). He has contributed to many presentations and publications, like:
Brown MA, Nevrekar D, Chung JH. Factors leading to precipitation of peri-breast implant gas following airline travel to high altitude. IRB approved retrospective review of 390 CT scans. American Journal of Roentgenology. 2015;205: 971-975. 10.2214/AJR.15.15031
DePopas E, Brown MA Varicose Veins and Lower Extremity Venous Insufficiency. Semin intervent Radiol 2018; 35(01): 056-061 DOI: 10.1055/s-0038-1636522
Bakdash K, Schramm KM, Annam A, Brown MA et al. Complication of Renal Biopsy. Semin Intervent Radiol 2019; 36:97-103 PMID 31123379
Dr. Matt Brown is kind and team-oriented. His favorite part about working with the team at RIA is his colleagues and patients. Not only is the team technically great, but he says they’re also genuine and caring people.
He also loves to see how happy the patients are with recovery time and their results after procedures. Treating conditions through a tiny incision and having the patients say, “That’s it?” afterward never gets old.
Dr. Matt Brown enjoys spending as much time as possible outside in his free time with his wife, Amber, their son, and their lazy, 120-pound mutt, Morris. He also has a 1984 Toyota 4X4 truck that he is slowly fixing up.
Medical School: University of Colorado School of Medicine – Denver, ColoradoInternshipInternal Medicine: University of Wisconsin – Madison, Wisconsin
Surgery: University of Colorado – Denver, Colorado
Residency
Diagnostic and Interventional Radiology: University of Colorado – Denver, Colorado
Fellowship
Vascular and Interventional Radiology: University of Colorado – Denver, Colorado
Board Certifications
American Board of Radiology: Interventional Radiology
American Board of Radiology: Diagnostic Radiology
Tyler Green, MD, is a board-certified vascular and interventional radiologist at RIA Endovascular in Greenwood Village, Colorado. Dr. Green is committed to providing outstanding care to patients seeking solutions for vascular issues and interventional radiology procedures, such as prostate artery embolization and minimally invasive vein treatments.
Dr. Green earned his medical degree from the University of Colorado School of Medicine in Denver, Colorado. He continued his medical training at the University of Wisconsin in Madison, where he completed an internal medicine internship. Dr. Green also finished a surgical internship at the University of Colorado.
Dr. Green’s dedication and passion for radiology encouraged him to return to the University of Colorado to pursue a diagnostic and interventional radiology residency. Dr. Green also completed a fellowship at the same university to refine his specialization. He has since authored numerous publications, presentations, and articles.
With two board certifications from the American Board of Radiology in interventional radiology and diagnostic radiology, Dr. Green is an invaluable asset to patients at RIA Endovascular. His dedication to ongoing learning and providing superior patient care shines through in every patient interaction.
Dr. Green is thrilled to offer patients state-of-the-art treatments and unwavering support, ultimately improving the quality of life for those under his care.
Medical School: University of Pennsylvania – Philadelphia, PA
Internship
Transitional: St. John’s Mercy Medical Center – Creve Coeur, MO
Residency
Diagnostic Radiology: Mallinckrodt Institute of Radiology, Washington University – St. Louis, MO
Fellowship
Interventional Radiology: Medical College of Wisconsin – Milwaukee, WI
Board Certification
American Board of Radiology 2010
Certificate of Added Qualification for Vascular and Interventional Radiology 2012
William Grande, MD, is a board-certified vascular and interventional radiologist and Board Secretary at RIA Endovascular. Dr. Grande delivers exceptional care to patients at the practice's location in Greenwood Village, Colorado. He helps those experiencing such ailments as peripheral artery disease, deep vein thrombosis (DVT), and other vein conditions.
Dr. Grande earned his medical degree from the University of Pennsylvania in Philadelphia. After finishing medical school, he pursued a transitional internship at St. John's Mercy Medical Center in Creve Coeur, Missouri. His dedication to the field led him to a residency in diagnostic radiology at the Mallinckrodt Institute of Radiology, Washington University in St. Louis, Missouri.
Dr. Grande further honed his skills through an interventional radiology fellowship at the Medical College of Wisconsin in Milwaukee.
As a leader in vascular interventional radiology, Dr. Grande has authored numerous medical articles, publications, and presentations. He achieved board certification from the American Board of Radiology nearly 15 years ago, solidifying his expertise in the field. Dr. Grande also obtained a Certificate of Added Qualification (CAQ) for Vascular and Interventional Radiology in 2012, showcasing his commitment to providing advanced patient care.
With this impressive educational background and certifications, Dr. Grande continues to excel at RIA Endovascular. He looks forward to working with new patients and delivering personalized care through cutting-edge treatments and modern techniques.
Medical School: Loyola University Stritch School of Medicine – Chicago, IL
Internship
Internal Medicine: Exempla St. Joseph Hospital – Denver, CO
Residency
Diagnostic Radiology: University of Colorado – Aurora, CO
Fellowship
Interventional Radiology: Medical College of Wisconsin – Milwaukee, WI
Board Certification
American Board of Radiology 2016
Tony Brown, MD, is a board-certified vascular and interventional radiologist specializing in pelvic stabilization and kyphoplasty at RIA Endovascular. Dr. Brown sees patients at the practice's location in Greenwood Village, Colorado.
He pursued medical school at Loyola University Stritch School of Medicine in Chicago, Illinois, followed by an internship in Internal Medicine at Exempla St. Joseph Hospital in Denver, Colorado, and a residency in Diagnostic Radiology at the University of Colorado in Aurora.
Dr. Brown completed his fellowship in Interventional Radiology at the Medical College of Wisconsin in Milwaukee.
He has contributed to a number of publications and presentations, such as:
Gipson MG, Smith, MT, Durham JD, Brown A, Johnson T, Ray CE Jr, Gupta RK, Kondo KL, Rochon PJ, Ryu RK. Intravascular US-Guided Portal Vein Access: Improved Procedural Metrics during TIPS Creation. Journal of Vascular and Interventional Radiology, 2016 Aug; 27(8):1140-7. PMID: 26852944
Charles E Ray, Anthony C Brown, Tyler J Green, Helena Winston, Sara M Kreidler, Deborah H Glueck, Paul J Rochon. Survival outcomes in patients with advanced hepatocellular carcinoma treated with drug-eluting bead chemoembolization. American Journal of Roentgenology. 2015; 204: 440-447. PMID: 25615768
Brown A, Malden E, Kugelmas M, Kortz E. Diagnosis of pancreatic duct-portal vein fistula; a case report and review of the literature. Journal of Radiology Case Reports. 2014 March; 8(3):31-38. PMID: 24967026
In 2016, Dr. Brown obtained board certification from the American Board of Radiology (ABR).
He is committed to caring for patients at RIA Endovascular and truly provides exceptional care.
Medical School: New York Medical College – Valhalla, NY
Internship
Exempla St. Joseph Hospital – Denver, CO
Residency
Diagnostic Radiology: Mallinckrodt Institute of Radiology, Washington University School of Medicine – St. Louis, MO
Fellowship
Interventional Radiology: University of Colorado School of Medicine – Aurora, CO
Board Certifications
American Board of Radiology 2010
Certificate of Added Qualification for Vascular and Interventional Radiology 2012
Matthew Gipson, MD, is a board-certified vascular and interventional radiologist at RIA Endovascular.
He pursued medical school at the New York Medical College in Valhalla, New York, followed by an internship at Exempla St. Joseph Hospital in Denver, Colorado.
He completed a residency in Diagnostic Radiology at the Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, Missouri, and a fellowship in Interventional Radiology at the University of Colorado School of Medicine in Aurora.
In 2010, Dr. Gipson received his board certification from the American Board of Radiology. In 2012, he obtained a Certificate of Added Qualification (CAQ) for Vascular and Interventional Radiology.
Dr. Gipson has also contributed to numerous publications and presentations, such as:
Gipson M, Cummings KW, Hurth KM. Bronchial Atresia. Radiographies. 2009 SepOct; 29(5): 1531-5
Gipson, MG. Percutaneous Management of Lymphoceles after Renal Transplantation. Semin intervent Radio12013; 30(2): 215-218
Gipson MG, Smith MT. Endovascular Therapies for Primary PostPartum Hemorrhage: Techniques and Outcomes. Semin intervent Radiol2013 Dec;30(4):333-339.
M.G. Gipson Celiac Disease and Generalized Lymphadenopathy: ot Always Ominous. American College of Physicians – Colorado Associates Scientific Meeting, Denver, CO 2006.
Knowledgeable and compassionate, Dr. Gipson aims to provide outstanding care for each and every patient he treats.
Benjamin Atchie, DO, one of the gifted neurointerventional surgeons at RIA Neurovascular in Englewood, Colorado. He is board-certified in diagnostic radiology with a certificate of added qualification in neuroradiology.
Dr. Atchie completed his Doctor of Osteopathic Medicine from the New York College of Osteopathic Medicine, in Westbury, New York. He went on to serve his internship at New York University Langone Hospital, in Brooklyn, New York, and a residency in diagnostic radiology at the Robert Wood Johnson Barnabas Health, Saint Barnabas Medical Center in Livingston, New Jersey.
Dr. Atchie has also participated in several prestigious fellowship programs, including interventional radiology, interventional neuroradiology, and diagnostic neuroradiology at the University of Texas Southwestern Medical Center in Dallas. He has contributed to several publications in peer-reviewed journals.
Dr. Atchie is committed to helping his patients improve their overall health. He provides highly specialized neurointerventional procedures to address issues, including stroke, aneurysm, and carotid stenosis. His compassionate, patient-focused approach helps him to educate and empower patients to understand their health and treatment options.
Medical School: Rush University School of Medicine - Chicago, IL
Internship:
General Surgery: University of Colorado School of Medicine - Aurora, CO
Residency:
Diagnostic Radiology: University of Colorado School of Medicine - Aurora, CO
Fellowship:
Breast Imaging: University of Colorado School of Medicine - Aurora, CO
Board Certification:
American College of Radiology
Emily S. Warncke, MD, is a dedicated and board-certified radiologist at RIA, providing expert care to patients at the McKee Medical Center and Summit View locations in Northern Colorado. With a focus on Breast Imaging, Dr. Warncke combines her extensive training with a personalized approach to patient care.
Dr. Warncke earned her medical degree from Rush University School of Medicine in Chicago, Illinois. She completed a General Surgery internship and a Diagnostic Radiology residency at the University of Colorado School of Medicine in Aurora, Colorado, where she later pursued a Breast Imaging fellowship.
Her leadership as a diagnostic radiology chief resident and her involvement in quality improvement initiatives highlight her commitment to advancing the field.
In recognition of her professional excellence, Dr. Warncke has been inducted into the Gold Humanism Honor Society and Alpha Omega Alpha Honor Society.
Dr. Warncke is an active member of several professional organizations, including the American College of Radiology, the American Medical Association, and the Society of Breast Imaging.
Outside of work, Dr. Warncke enjoys hiking, playing ice hockey, skiing, and spending time with her husband and three young children.
