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Department of Neurology

Department of Neurology

Faculty | Professors


Specialty clinical services:
EMG laboratory 




To see if Ricardo A. Maselli is accepting new patients, or for assistance finding a UC Davis doctor, please call (800) 2-UC DAVIS.

Ricardo Maselli, M.D.

Ricardo Maselli, M.D.

Director of the EMG Laboratory
Specialty: Neurology

UC Davis Medical Center
2315 Stockton Blvd.
Sacramento, CA 95817
(916) 734-2377

Lawrence J. Ellison Ambulatory Care Center
4860 Y St., Suite 0100
Sacramento, CA 95817
(916) 734-3588

Clinical & Research Interests

Ricardo Maselli focuses his clinical interests on disorders of the motor system, particularly myasthenia gravis and motor neuron diseases. He is using innovative techniques of his own design to conduct in-vitro diagnostic and molecular genetic studies in patients with congenital myasthenic syndromes.


French, Russian, Spanish


Buenos Aires University School of Medicine
Buenos Aires, Argentina
M.D. 1973


Thomason General Hospital
El Paso, Texas


Kingston General Hospital
Kingston, Ontario


Italian Hospital
Buenos Aires, Argentina


University of Chicago Medical Center
Chicago, Illinois
Neurology/Clinical and Research Neurophysiology


University of Chicago Medical Center
Chicago, Illinois
Neurology/Clinical Neurophysiology

Board Certifications

American Board of Clinical Neurophysiology, 1986
American Board of Neurology and Psychiatry, 1986
American Board of Electrodiagnostic Medicine, 1984

Professional Memberships

American Academy of Neurology
American Association of Neuromuscular Electrondiagnostic Medicine
Society for Neuroscience

Select Recent Publications

Vohra, B.P., J.S. Groshong, R.A. Maselli, M.A. Verity, R.L. Wollmann, C.M. Gomez. Focal caspase activation underlies the endplate myopathy in slow-channel syndrome.Ann Neurol 2004; 55(3):347-52.


Dunne, V, R.A. Maselli. Common founder effect of rapsyn N88K studied using intragenic markers. J Hum Genet. 2004;49(7): 366-9.


Maselli, R.A., D. Chen, D. Mo, C. Bowe, G. Fenton, R.L. Wollmann. Choline acetyltransferase mutations in myasthenic syndrome due to deficient acetylcholine resynthesis. Muscle Nerve. 2003; 27(2):180-7.


Dunne, V., R.A. Maselli. Identification of pathogenic mutations in the human rapsyn gene. J Hum Genet 2003; 48(4):204-7.


Anor, S., D. Lipsitz, D.C. Williams, L. Tripp, N. Willits, R.A. Maselli R, R.A. LeCouteur RA. Evaluation of jitter by stimulated single-fiber electromyography in normal dogs. J Vet Intern Med 2003; 17(4):545-50.


Maselli, R.A., V. Dunne, S.I. Pascual-Pascual, C. Bowe, M. Agius, R. Frank, R.L. Wollmann RL. Rapsyn mutations in myasthenic syndrome due to impaired receptor clustering. Muscle Nerve 2003; 28(3):293-301.


Maselli, R.A., W. Books, V. Dunne. Effect of inherited abnormalities of calcium regulation on human neuromuscular transmission. Ann N Y Acad Sci 2003; 998:18-28.


Maselli, R.A., J. Wan, V. Dunne, M. Graves, R.W. Baloh, R.L. Wollmann, J. Jen. Presynaptic failure of neuromuscular transmission and synaptic remodeling in EA2. Neurology 2003; 61(12):1743-8.


Gomez CM, Maselli RA, Vohra BP, Navedo M, Stiles JR, Charnet P, Schott K, Rojas L, Keesey J, Verity A, Wollmann RW, Lasalde-Dominicci J. Novel delta subunit mutation in slow-channel syndrome causes severe weakness by novel mechanisms. Ann Neurol. 2002 Jan;51(1):102-12.


Gomez, C.M., R.A. Maselli, B.P. Vohra, M. Navedo , J.R. Stiles, P. Charnet, K. Schott, L. Rojas, J. Keesey, A. Verity, R.L. Wollmann and J. Lasalde-Dominicci. Novel delta subunit mutation in slow-channel syndrome causes severe weakness by novel mechanisms. Annals of Neurology. 2002, 51(1):102-12.