Raul I. Clavijo, M.D.

Assistant Professor, Department of Urologic Surgery

To see if Raul I. Clavijo is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).



Male Reproductive Medicine and Surgery




Urologic Surgery

Locations and Contact

4860 Y St.
Sacramento, CA 95817

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Additional Numbers

Clinic Fax


Physician Referrals

800-4-UCDAVIS (800-482-3284)

Philosophy of Care

For the patients I see in my clinic I strive to provide an educational setting where the patient is able to learn about his condition after which treatment options are presented. I feel a shared decision regarding treatment based on a patient's newly acquired understanding on his condition is essential to provide long term compliance and efficacy of a treatment plan. It is clear to me that this requires an individual approach as I have learned that not all patients will fit into established care algorithms.

Clinical Interests

Dr. Clavijo is a urologist fellowship trained in andrology, including male reproductive medicine and surgery. He has a special interest in male reproductive tract reconstruction and treating conditions such as testosterone deficiency, varicocele, sexual dysfunction, infertility, erectile dysfunction (including the placement of penile implants) and Peyronie's disease. He is unique in the Sacramento area as he places a high volume of penile implants.

He is skilled in microsurgery and performs vasectomy reversals (vasovasostomy/vasoepididymostomy), microdissection testicular sperm extraction (micro TESE), microsurgical epididymal sperm aspiration (MESA), testicular sperm aspiration (TESA) and microsurgical varicocelectomy.

Research/Academic Interests

Dr. Clavijo's research focuses on the effects of lifestyle factors on sexual dysfunction, erectile dysfunction and male infertility. He also has an interest in novel therapies for erectile dysfunction such as low intensity shockwave therapy.



Undergraduate School

B.A., UC Berkeley, Berkeley CA 2004

Medical School

M.D., UC San Francisco School of Medicine, San Francisco CA 2010


General Surgery, UCLA, Los Angeles CA 2010-2011


Urology, UCLA, Los Angeles CA 2011-2016


Male Reproductive Medicine/Andrology, University of Miami, Miami FL 2016-2017

Howard Hughes Medical Institute- Medical Research Training Fellowship, 2008

UCSF Medical Student Research Training Program Fellowship, 2006

Clavijo RI, Arora H, Gibbs E, Cohen S, Griswold A, Bakircioglu E, Bademci G, Tekin M, Ramasamy R. Whole Exome Sequencing of a Consanguineous Turkish Family Identifies a Mutation in GTF2H3 in Brothers with Spermatogenic Failure. Urology, 2018. 

Hsiao P, Clavijo RI. Adverse Effects Of Cannabis On Male Reproduction. Euro Urol Focus, 2018

Waler NJ*, Clavijo RI*, Brackett NL, Lynne CM, Ramasamy R. Policy on Posthumous Sperm Retrieval: Survey of 75 Major Academic Medical Centers. 2018. Urology, 113: 45-51.

Lopategui DM, Griswold AJ, Arora H, Clavijo RI, Tekin M, Ramasamy R. A rare ANOS1 variant in siblings with Kallmann syndrome identified by whole exome sequencing. 2018. Andrology, 6(1): 53-57.

Clavijo RI, Hsiao W. Update on male reproductive endocrinology. 2018.Transl Androl Urol, 7(Suppl 3): S367-S372.

Sávio LF, Prakash NS, Clavijo R, Kryvenko ON, Ramasamy R. Microsurgical identification and excision of an intratesticular mass. Fertil Steril. 2017 Apr;107(4):e16. Epub 2017 Feb 24.

Clavijo RI, Kohn TP, Kohn JR, Ramasamy R. Effects of Low-Intensity Extracorporeal Shockwave Therapy on Erectile Dysfunction: A Systematic Review and Meta-Analysis. J Sex Med. 2017 Jan;14(1):27-35. Epub 2016 Dec 13.

Clavijo RI, Ramasamy R. Testosterone Replacement Should be Given to Men with Erectile Dysfunction: Pro. J Urol. 2017 Feb;197(2):284. Epub 2016 Dec 18.

Clavijo RI, Ramasamy R. Testosterone Replacement Should be Given to Men with Erectile Dysfunction: Pro. J Urol. 2017 Feb;197(2):284. Epub 2016 Dec 18.

Clavijo RI, Ramasamy R. Varicocele in a Young Man: Something We Should Be Worried About? Eur Urol. 2016 Dec;70(6):1030-1031. Epub 2016 Jul 29.

Clavijo RI, Daskivich T, Kwan L, Bassett J, Keller T, Bennett C. Patterns and Predictors of Use of Erectile Dysfunction Treatment in a Veterans Affairs Medical Center. Int J of Imp Res. 2016 May 19.

Kohn TP, Clavijo R, Ramasamy R, Hakky T, Candrashekar A, Lamb DJ, Lipshultz LI. Reproductive outcomes in men with karyotype abnormalities: Case report and review of the literature. Can Urol Assoc J. 2015 Sep-Oct;9(9-10):E667-70. Epub 2015 Sep 9.

Clavijo RI, Miner MM, Rajfer J. Erectile Dysfunction and Essential Hypertension: The Same Aging-related Disorder? Rev Urol. 2014;16(4):167-71.

Smith JF, Shindel AW, Huang YC, Clavijo RI, Flechner L, Breyer BN, Eisenberg ML, Lue TF. Pentoxifylline treatment and penile calcifications in men with Peyronie's disease. Asian J Androl. 2011 Mar;13(2):322-5. Epub 2010 Nov 22.

Clavijo RI, Rose-Nussbaumer J, Turek PJ. Clinically symptomatic vasitis: clinical correlations in a rare condition. Syst Biol Reprod Med. 2010 Dec;56(6):445-9. Epub 2010 Oct 22.