MatthewJMcMahonDOFACC

Cardiology • Cedar Rapids, IA

Adult Congenital Heart Disease, Heart Failure & Transplantation, Interventional Cardiology

UnityPoint Clinic - Cardiology

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Office
1026 A Ave
Cedar Rapids, IA 52402
Phone+1 319-369-8069

Fax+1 319-368-5747
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Education & Training

Fitzsimons Army Medical CenterFellowship, Cardiovascular Disease, 1983 - 1985
Fitzsimons Army Medical CenterResidency, Internal Medicine, 1980 - 1983
Des Moines University College of Osteopathic MedicineClass of 1977

Certifications & Licensure

IA State License 1978 - 2025
NV State License 1978 - 2022
AZ State License 1987 - 2010
GA State License 1985 - 1989
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Cardiovascular Disease

Awards, Honors, & Recognition

Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2012
Fellow (FACC) American College of Cardiology

Publications & Presentations

PubMed

113 citations
The Detection of Motion by Blind Subjects With the Epiretinal 60-Electrode (Argus II) Retinal Prosthesis
Jessy D. Dorn, Ashish Ahuja, Avi Caspi, Lyndon da Cruz, Gislin Dagnelie, José-Alain Sahel, Robert J. Greenberg, Matthew J. McMahon> ;JAMA Ophthalmology. 2013 Feb 1
94 citations
Factors Affecting Perceptual Threshold in Argus II Retinal Prosthesis Subjects.
Ashish Ahuja, J Yeoh, Jessy D. Dorn, Avi Caspi, Varalakshmi Wuyyuru, Matthew J. McMahon, Mark S. Humayun, Robert J. Greenberg, Lyndon daCruz> ;Translational Vision Science & Technology. 2013 Apr 1
What Is an Appropriate Reference Standard in the Quantitation of Plaque Surface Area by Intravascular Coronary Ultrasound
Charles L. Laham, Matthew J. McMahon, Michael S. Chandra, Roy Venzon, Michael Jerin, Nicolas W. Shammas> ;The International Journal of Angiology. 2012 Mar 1
171 citations
Blind subjects implanted with the Argus II retinal prosthesis are able to improve performance in a spatial-motor task
Ashish Ahuja, Jessy D. Dorn, Avi Caspi, Matthew J. McMahon, Gislin Dagnelie, Lyndon daCruz, Paulo E. Stanga, Mark S. Humayun, Robert J. Greenberg> ;The British Journal of Ophthalmology. 2011 Apr 1
60 citations
Preliminary 6 month results from the argus tm ii epiretinal prosthesis feasibility study
Mark S. Humayun, Jessy D. Dorn, Ashish Ahuja, Avi Caspi, Eugene Filley, Gislin Dagnelie, Joel Salzmann, Arturo Santos, Jacque L. Duncan, Lyndon daCruz, Saddek Mohand-S...> ;Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference. 2009 Nov 13
58 citations
Brightness as a Function of Current Amplitude in Human Retinal Electrical Stimulation
Scott H. Greenwald, Alan Horsager, Mark S. Humayun, Robert J. Greenberg, Matthew J. McMahon, Ione Fine> ;Investigative Ophthalmology & Visual Science. 2009 Nov 1
72 citations
Predicting Visual Sensitivity in Retinal Prosthesis Patients
Alan Horsager, Scott H. Greenwald, James D. Weiland, Mark S. Humayun, Robert J. Greenberg, Matthew J. McMahon, Geoffrey M. Boynton, Ione Fine> ;Investigative Ophthalmology & Visual Science. 2009 Apr 1
96 citations
Feasibility Study of a Retinal Prosthesis : Spatial Vision With a 16-Electrode Implant
Avi Caspi, Jessy D. Dorn, Kelly H. Mcclure, Mark S. Humayun, Robert J. Greenberg, Matthew J. McMahon> ;Archives of Ophthalmology. 2009 Apr 1
45 citations
Retinal prosthesis phosphene shape analysis
Devyani Nanduri, Mark S. Humayun, Robert J. Greenberg, Matthew J. McMahon, James D. Weiland> ;Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference. 2008 Jan 1
144 citations
Factors affecting perceptual thresholds in epiretinal prostheses.
Chloé de Balthasar, Sweta Patel, Arup Roy, R. Freda, Scott H. Greenwald, Alan Horsager, Manjunatha Mahadevappa, D. Yanai, Matthew J. McMahon, Mark S. Humayun, Robert J...> ;Investigative Ophthalmology & Visual Science. 2008 Jun 1
79 citations
The classical receptive field surround of primate parasol ganglion cells is mediated primarily by a non-GABAergic pathway.
Matthew J. McMahon, Orin S. Packer, Dennis M. Dacey> ;The Journal of Neuroscience. 2004 Apr 14
61 citations
L and M cone contributions to the midget and parasol ganglion cell receptive fields of macaque monkey retina.
Lisa Diller, Orin S. Packer, Jan Verweij, Matthew J. McMahon, David R. Williams, Dennis M. Dacey> ;The Journal of Neuroscience. 2004 Feb 4
34 citations
The origin of the oblique effect examined with pattern adaptation and masking
Matthew J. McMahon, Donald I. A. MacLeod> ;Journal of Vision. 2003 Apr 1
39 citations
Fine structure of parvocellular receptive fields in the primate fovea revealed by laser interferometry.
Matthew J. McMahon, Martin J.M. Lankheet, Peter Lennie, David R. Williams> ;The Journal of Neuroscience. 2000 Mar 1
89 citations
Off-axis optical quality and retinal sampling in the human eye
David R. Williams, Pablo Artal, Rafael Navarro, Matthew J. McMahon, David H. Brainard> ;Vision Research. 1996 Apr 1
9 citations
Discrimination of binocular color mixtures in dichromacy: evaluation of the Maxwell-Cornsweet conjecture
Kenneth Knoblauch, Matthew J. McMahon> ;Journal of the Optical Society of America. A, Optics, Image Science, and Vision. 1995 Oct 1
Enhancement of biogenic sulfide production in a packed-bed bioreactor via critical inoculum design and carrier material selection.
McMahon, M. J., Daugulis, A. J.> ;Biotechnol Bioeng. 2008 Aug 1
Gas phase H(2)S product recovery in a packed bed bioreactor with immobilized sulfate-reducing bacteria.
McMahon, M. J., Daugulis, A. J.> ;Biotechnol Lett. 2008 Mar
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