DAVID K. HAAS, M.D., F.A.C.R.

DAVID K. HAAS, M.D., F.A.C.R. CURRICULUM VITAE OFFICE ADDRESS: Steinberg Diagnostic Medical Imaging 9070 W. Post Road Las Vegas, NV 89148 TELEPHONE: OFFICE: (702) 732-6065 EDUCATION UNDERGRADUATE: Grand Valley State College Allendale, Michigan B.S. cum laude, Honors Program September 1970 - December 1973 MEDICAL SCHOOL: Michigan State University College of Human Medicine East Lansing, Michigan M.D. September 1976 - December 1979 INTERNSHIP: Fitzsimons Army Medical Center Aurora, Colorado Flexible January 1980 December 1980 RESIDENCY: Fitzsimons Army Medical Center Aurora, Colorado Diagnostic Radiology January 1981 December 1983 FELLOWSHIPS: Univ. of California, San Francisco San Francisco, California Neuroradiology Under Drs. T.H. Newton, D. Norman and M. Brant-Zawadzki. January 1984 - January 1986

FELLOWSHIPS Continued Univ. of Colorado Health Sciences Center Denver, Colorado Neuroradiology Under Dr. J. Stears July 1985 Hospital for Sick Children University of Toronto Toronto, Ontario, Canada Neuroradiology and Neuropathology Under Drs. D. Harwood-Nash and C. Becker August 1985 - January 1986 SPECIAL CERTIFICATION: Fitzsimons Army Medical Center Aurora, Colorado Interventional Radiology (Certification equivalent to one year fellowship) Under Dr. W. Yakes 5/86-5/87 STAFF POSITIONS AND ACADEMIC APPOINTMENTS 6/89 - Present Steinberg Diagnostic Medical Imaging 2950 S. Maryland Parkway Las Vegas, NV 89109 12/92 - Present Clinical Associate Professor of Radiology and Pediatrics University of Nevada School of Medicine 10/89 1/2000 Examiner in Radiology Nevada State Board of Medical Examiners 7/90-6/92 Chief, Section of Radiology Women s Hospital 2025 E. Sahara Ave. Las Vegas, NV 89104 1/86-5/89 Chief, Neuroradiology and Magnetic Resonance Imaging Fitzsimons Army Medical Center Aurora, Colorado 80045

STAFF POSITIONS AND ACADEMIC APPOINTMENTS Continued 7/86 7/90 Assistant Clinical Professor Department of Radiology University of Colorado Health Science Center Denver, Colorado 1/84-1/86 Clinical Instructor in Radiology and Neuroradiology University of California, San Francisco San Francisco, California DIPLOMATE: LICENSURE AND CERTIFICATION 1984 American Board of Radiology, Board Certified ABR Maintenance of Certification in Neuroradiology (September 2009 December 2019) STATE MEDICAL: Nevada - 1989 #5834 Wyoming 1982 #3386A Colorado 1981 #5834 BLS, ACLS and PALS: Certified and Current PROFESSIONAL SOCIETY American Society of Neuroradiology, Senior Member Western Neuroradiological Society, Active Member Clark County Medical Society Delegate, 2004 Nevada State Medical Association Delegate, 2004 American College of Radiology, Active Member Fellow American College of Radiology 2010 Alternate Counselor for the State of Nevada 1996-1997, 2006, 2007 Counselor for the State of Nevada 1998-2001, 2001-2005 Credentials Committee Member 2002, 2005, 2006 American College of Radiology, State of Nevada Chapter Vice President, 1997 Secretary / Treasurer, 1998 2000, 2011 - Present President, 2001 to 2010 Southern Nevada Radiological Society: Secretary, 1993-1994 Vice-President, 1994-1995, 1997-1998 President, 1995-1996 Vice President & Acting President, 1996-1997 Vice President, 1997-1998

ARMED FORCES - INSTITUTE OF PATHOLOGY COURSES 1983 General Diagnostic Course Armed Forces Institute of Pathology 1985 Neuropathology Course Armed Forces Institute of Pathology PUBLICATIONS 1. Hopper KD, Haas DK, Rice M, Ghaed N. Mobius-Poland Syndrome, Ophthalmologic, Histological, and Computerized Tomographic Review. Southern Medical Journal, May 1985, 78: 523-527. 2. Everhart R, Hopper KD, Haas DK, Ghaed N. Reconstruction of Cervical Carotid via Branches of Ascending Artery. America Journal of Neuroradiology, 1985, 6: 843. 3. Komppa GH, Northern J, Haas DK, Lisecki E, Ghaed N. Ultrasound Guided Aspiration of the Hip. American Journal of Clinical Ultrasound, July/August 1985, 13: 433-434. 4. Holland B, Kucharczyk W, Brant-Zawadeski M, Norman D, Haas DK, Harper P. Magnetic Resonance of Calcified Intracranial Lesions. Radiology, November 1985. 5. Holland B, Haas DK, Norman D, Brant-Zawadzki M, Newton TH. Magnetic Resonance of the Normal Maturation of the Developing Brain. American Journal of Neuroradiology, March/April 1986. 6. Hopper KD, Everhart R, Haas DK, Ghaed V. Collateralization to an Occluded Cervical Internal Carotid Artery via Branches from the Ascending Pharyngeal Artery. Military Medicine, December 1986. 7. Hopper KD, Grabowski W, Carter T, Haas DK, Ghaed N. Combat CT: The Use of Mobile Computed Tomography in the Army Field Hospital. Military Medicine, June 1988. 8. Hopper KD, Haas DK. Congenital and Pediatric Lesions of the Orbit. Seminars in Ultrasound and Magnetic Resonance, 1988; 9: 413-427. 9. Yakes WF, Haas DK, Parker SH, Gibson MD, Hopper KD, et al. Symptomatic Vascular Malformations: Ethanol Embolotherapy. (RSNA - SCVIR Special Series I), Radiology 1989; 170: 1059-1066. 10. Yakes WF, Kumpe DA, Brown S, Cook P, Parker SH, Lattes R, Haas DK, et al. Angioplasty of the Infrarenal Abdominal Aorta. Radiology - SCVIR Special Series II, September 1989. 11. Yakes WF, Kumpe DA, Brown SB, Parker SH, Haas DK. Percutaneous Transluminal Aortic Angioplasty: Techniques & Results. Radiology, 1989; 172: 965-970.

12. Yakes WF, Kumpe DA, Parker SH, Haas DK et al. Angioplasty of the Infrarenal Abdominal Aorta. Seminars in Interventional Radiology, September 1989; Vol. 6, Number 3: 129-137. 13. Yakes WF, Parker SH, Gibson MD, Haas DK et al. Alcohol Embolotherapy of Vascular Malformations. Seminars in Interventional Radiology, September 1989; Vol. 6, Number 3: 146-161. 14. Yakes WF, Haas DK et al. Symptomatic Vascular Malformations: Ethanol Embolotherapy. Key Interventional Radiology, November 1989. 15. Haas DK, Steinberg LH, Winkler ML, Steinberg DL, Mirich DR, CT Evaluation of Silicone Breast Implants. Radiology, Feb 1993; Vol. 186, Number 2: 616 16. Parker SH, Burbank F, Jackman RJ,...Haas DK, et al. Percutaneous Large Core Breast Biopsy: A Multi-Institutional Study. Radiology, Nov 1994; Vol. 193, No.2: 359-364. EXHIBITS 1. Yakes WF, Kumpe D, Parker S, Haas DK, Gibson M. Angioplasty of the Infrarenal Abdominal Aorta. November 1987: Radiological Society of North America Chicago, IL August 1988: Rocky Mountain Radiological Society Meeting Denver, CO - 1st Place Award 2. Yakes WF, Gibson MD, Parker S, Haas DK. Alcohol Embolotherapy of Vascular Malformations. November 1988: Radiological Society of North America Chicago, IL 3. Yakes WF, Kumpte DA, Parker S, Haas DK. Angioplasty of the Infrarenal Abdominal Aorta - An Update. November 1988: Chicago, IL Radiological Society of North America, 4. Hopper KD, Sherman JL, Mayer JS, Sefczek R, Haas DK. Computed Tomography and Magnetic Resonance Imaging of the Pediatric Orbit. March 1989: American Society of Neuroradiology Orlando, FL

ABSTRACTS 1. Haas DK, Brant-Zawadski M, Norman D, Newton TH. MRI of Myelopathy. Western Neuroradiological Society, October 1984. 2. Haas DK, Newton TH, Brant-Zawadski M, Norman D. MRI of the Skull Base. Western Neuroradiological Society, October 1984. 3. Haas DK, Norman D, Brant-Zawadski M., Newton TH. Magnetic Resonance of Myelopathy. Radiological Society of North America, November 1984. 4. Holland B, Kucharczyk W, Norman D, Brant-Zawadski M, Newton TH, Haas DK. Calcified Intracranial Lesions: Sensitivity of MRI. Western Neuroradiological Society, October 1984. 5. Stimac A, Brant-Zawadski M, Norman D, Mills C, Newton TH, Soloman M, Haas DK. Magnetic Resonance Imaging of Intracranial Vascular Lesions. American Society of Neuroradiology, June 1984. 6. Haas DK. Metrizamide Use in Spinal Trauma. Trauma and the Acutely Ill Patient: Imaging Update. University of California San Francisco Annual Trauma Course, January 1985. 7. Rosenbloom SA, Haas DK, Barbaro NM, Norman D, Brant-Zawadski M, Newton TH. Magnetic Resonance Imaging of Syringomyelia. American Society of Neuroradiology, February 1985. 8. Hecht ST, Haas DK, Norman D, Brant-Zawadski M, Newton TH. Magnetic Resonance Imaging of Spinal Axis Tumors. American Society of Neuroradiology, February 1985. 9. Holland BA, Haas DK, Norman D, Brant-Zawadski M, Newton TH. MRI of Normal and Abnormal Brain Maturation. American Society of Neuroradiology, February 1985. 10. Steinbuck L, Gillespy T, Richardson M, Haas DK, Genant H. Magnetic Resonance Imaging of the Cervical Spine. American Roentgen Ray Society, April 1985. 11. Berry I, Brant-Zawadski M, Brasch R, Osaki L, Holland BA, Haas DK, Newton T. T1 and T2 Values in Enhancing (Gd-DTPA) Versus Non-enhancing Brain Lesions on MR Imaging. Radiological Society of North America, November 1985. 12. Reider I, DeLapaz R, Haas DK, Brant-Zawadski M, Norman D. Surface Coil MR Imaging of Normal and Pathological Anatomy of the Cervical Spinal Cord and Canal. Radiological Society of North America, November 1985. 13. Berry I, Brant-Zawadski M, Osaki L, Holland B, McMurdo S. Haas DK. Gd-DTPA in Clinical MRI of the Brian: Enhancement of Extra-Axial Lesions and Normal Brain Structures. American Society of Neuroradiology, December 1986. 14. Brant-Zawadski M, Berry I, Osaki L, Holland B, McMurdo S, Haas DK. Role of Gd-DTPA in MR of Intra-Axial Lesions. American Society of Neuroradiology, December 1986.

15. Haas DK. Neuroimaging in Trauma. 7 th Annual Trauma Symposium, El Paso, Texas, November 1987. 16. Haas DK. The Use of Intrathecal Contrast Agents in Spinal Trauma. 7 th Annual Trauma Symposium, El Paso, TX, November 1987. 17. Yakes W, Kumpe D, Parker S, Haas DK, Gibson M., Angioplasty of the Intra-Renal Abdominal Aorta. Radiological Society of North America, December 1987. 18. Haas DK, Chang S, Harwood-Nash D., Melas--Multiple Stroke Syndromes in Children. American Society of Neuroradiology. May 1989. 19. Yakes WF, Kumpe DA, Brown S, Lattes R, Parker S, Haas DK, Gibson MD., Angioplasty of the Infrarenal Abdominal Aorta. Radiological Society of North America, November 1988. 20. Yakes WF, Haas DK, Parker S, Gibson MD, Pevsner P. Alcohol Embolotherapy of Symptomatic Vascular Malformations. Radiological Society of North America, November 1988. 21. Hopper KD, Sherman JL, Mayer JS, Sefczek R, Haas DK. Computed Tomography and Magnetic Resonance Imaging of the Pediatric Orbit. American Society of Neuroradiology, March 1989. 22. Luthke J, Parker S, Haas DK, Carter T., Ultrasound Intraperative Brain Biopsy Utilizing Biopsy Gun. American Roentgen Ray Society, April 1989. 23. Haas DK, Steinberg LH, Winkler ML, Steinberg DL, Mirich DR. CT Evaluation of Silicone Implants. Radiological Society of North America, November 1992. 24. Haas DK. Radiographic Anatomy of the Low Back. 8 th Annual Low Back Pain Conference, June 1994. 25. Haas DK. Advanced Imaging Techniques. 8 th Annual Low Back Pain Conference, June 1994. 26. Haas DK. Radiographic Anatomy of the Low Back. 9 th Annual Low Back Pain Conference, June 1995. 27. Haas DK. Advanced Imaging Techniques. 9 th Annual Low Back Pain Conference, June 1995. 28. Haas DK. Advanced Imaging Techniques. 10 th Annual Low Back Pain Conference, June 1996.

PRESENTATIONS 1. Haas DK. Magnetic Resonance of Psychiatric Disorders. Walnut Creek Psychiatric Hospital, June 1984. 2. Haas DK, Newton TH, Norman D, Brant-Zawadski M. Magnetic Resonance of the Base of the Skull. Western Neuroradiological Society Meeting, October 1984. 3. Haas DK, Brant-Zawadski M, Norman D, Newton TH. Magnetic Resonance of Myelopathy. Western Neuroradiological Society Meeting, October 1984. 4. Haas DK, Norman D, Brant-Zawadski M, Newton TH. Magnetic Resonance of Myelopathy. Radiological Society of North America. November 1984. 5. Haas DK. Metrizamide Computed Tomography in Spinal Trauma. University of California Annual Trauma Course. January 1985. 6. Haas DK. Magnetic Resonance of the CNS. Brook Army Medical Center, San Antonio, Texas, May 1985. 7. Haas DK. Magnetic Resonance: An Overview. Fitzsimons Army Medical Center, Aurora, Colorado, May 1985. 8. Haas DK. Intracranial Tumors - Extra-Axial. University of Colorado, Denver, Colorado, April 1986. 9. Haas DK. Intracranial Tumors - Intra-Axial. University of Colorado, Denver, Colorado, May 1986. 10. Haas DK. Spinal Tumors. University of Colorado, Denver, Colorado, February 1987. 11. Haas DK. Magnetic Resonance of the Central Nervous System. 4 th Annual Physical Medicine Course. Fitzsimons Army Medical Center, Aurora, Colorado, June 1987. 12. Haas DK. Neuroimaging in Trauma. 7 th Annual William Beaumont Trauma Symposium, El Paso, Texas, November 1987. 13. Haas DK. The Use of Intrathecal Contrast Agents in Spinal Trauma. 7 th Annual William Beaumont Trauma Symposium, El Paso, Texas, November 1987. 14. Haas DK, Chang S, Harwood-Nash D. Multiple Stroke Syndromes in Children. American Society of Neuroradiology, Chicago, Illinois, May 1988. 15. Haas DK. Radiologic Evaluation of Facial Fractures: Plain Films, Tomography and Computerized Tomography. Maxillofacial Trauma Course, Denver, Colorado, June 1988. 16. Haas DK, Steinberg LH, Winkler ML, Steinberg DL, Mirich DR. CT Evaluation of Silicone Implants. Radiological Society of North America, November 1992.

17. Haas DK, Winkler ML. Advanced Imaging of the Lumbar Sacral Spine - The Role of CT and MRI Part I & II. 7 th Annual Low Back Pain Conference, Las Vegas, Nevada, June 1993. 18. Haas DK, Imaging of Breast Implants. Las Vegas Mammography Society, Las Vegas, Nevada, April 1994 19. Haas DK, Radiographic Anatomy of the Low Back. 8 th Annual Low Back Pain Conference, Las Vegas, Nevada, June 1994. 20. Haas DK, Advanced Imaging Techniques. 8 th Annual Low Back Pain Conference, Las Vegas, Nevada, June 1994. 21. Haas, DK, Course Coordinator and Moderator 1 st Annual Mammography Course, Las Vegas, Nevada, June 1995. 22. Haas, DK, Radiographic Anatomy of the Low Back, 9 th Annual Low Back Pain Conference, Las Vegas, Nevada, June 1995. 23. Haas, DK, Winkler, ML, CT and MRI Scans of the Low Back, 9 th Annual Low Back Pain Conference, Las Vegas, Nevada, June 1995. 24. Haas, DK, Radiographic Anatomy of the Low Back. 10 th Annual Low Back Pain Conference, Las Vegas, NV 1996 25. Haas, DK, Course Moderator, 2 nd Annual Mammography Course Las Vegas, NV June, 1996. 26. Haas, DK, Speaker, Radiologic Evaluation of Facial Trauma. AAMT 18 th Annual Meeting, Las Vegas, NV July 1997. 27. Haas, DK, Course Moderator, 3 rd Annual Mammography Course, Las Vegas, Nevada, June 1997 28. Haas, DK, Course Coordinator & Moderator, 4 th Annual Mammography Course, Las Vegas, Nevada, June 1998