SamuelHerschelPepkowitzMD

Pathology • Calabasas Hills, CA

Blood Banking & Transfusion Medicine, Anatomic Pathology, Clinical Pathology, Pediatric Pathology

Medical Director

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Office
Endocrine Sciences
Calabasas Hills, CA 91301
Phone+1 818-867-1402

Fax+1 818-338-8119
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Education & Training

Cedars-Sinai Medical CenterResidency, Pathology-Anatomic and Clinical, 1981 - 1984
University of North Carolina HospitalsResidency, Pediatrics, 1973 - 1976
Columbia University Vagelos College of Physicians and SurgeonsClass of 1973

Certifications & Licensure

CA State Medical License 1981 - 2026
NJ State Medical License 2003 - 2007
NC State Medical License 1975 - 2002
SC State Medical License 1984 - 1986
American Board of Pathology Anatomic Pathology & Clinical Pathology
American Board of Pathology Blood Banking
American Board of Pediatrics Pediatrics

Awards, Honors, & Recognition

Fellow (FAAP) American Academy of Pediatrics

Publications & Presentations

PubMed

Correction to: Amanita Mushroom Toxin Poisoning in Los Angeles County.
Parker G Jobin, Connor Stewart, Aarshi Vipani, Ingrid Perez-Alvarez, Samuel Pepkowitz, Ellen Klapper, Anders Berg, Kaytlena Stillman, Sam Torbati, Alexander Kuo, Hirsh...> ;ACG Case Reports Journal. 2024 Mar 1
Amanita Mushroom Toxin Poisoning in Los Angeles County.
Parker G Jobin, Connor Stewart, Aarshi Vipani, Ingrid Perez-Alvarez, Samuel Pepkowitz, Ellen Klapper, Anders Berg, Kaytlena Stillman, Sam Torbati, Alexander Kuo, Hirsh...> ;ACG Case Reports Journal. 2024 Jan 1
1 citations
Durable remission of thrombotic thrombocytopenic purpura in the setting of pembrolizumab therapy.
Michael Kozak, Wesley Rubenstein, Derick Okwan-Duodu, Kenneth Friedman, Youram Nassir, Ingrid Perez-Alvarez, David R Gibb, Ellen Klapper, Samuel Pepkowitz> ;Transfusion. 2023 Jun 1
1 citations
Successful autologous hematopoietic stem cell transplants using Salmonella positive products collected from asymptomatic donors.
Ingrid Perez-Alvarez, Margie Morgan, Deisy A Contreras, Michael Ben-Aderet, Emily Gaddam, Ronald Paquette, Robert Vescio, Samuel H Pepkowitz, David R Gibb, Rachel Zabn...> ;Transfusion. 2023 Apr 1
1 citations
The pro-B-type natriuretic peptide dilemma in hematopoietic progenitor cell collection.
Yigit Baykara, Samuel H Pepkowitz, Yamac Akgun> ;Journal of Clinical Apheresis. 2022 Dec 1
Prior vaccination has changed the composition of the COVID-19 convalescent plasma inventory.
Samuel H Pepkowitz, David Gibb, Ingrid Perez-Alvarez, Julie Tanaka, Josephine Rojo, Ellen Klapper, Phou, S. M., Phou, S.> ;Transfusion. 2022 Oct 1
Investigating anti-D in an individual with the weak D type 2 genotype.
N Nguyen, J Revilla, K Rodberg, D R Gibb, S H Pepkowitz, E B Klapper, Phou, S. M., S Phou> ;Immunohematology. 2022 Sep 1
4 citations
Implementation of a low-titer stored whole blood transfusion program for civilian trauma patients: Early experience and logistical challenges.
Galinos Barmparas, Raymond Huang, Chelsea Hayes, Samuel H Pepkowitz, Ihab A Abumuhor, Sandra E Thomasian, Daniel R Margulies, Ellen B Klapper> ;Injury. 2022 May 1
3 citations
Overtransfusion of packed red blood cells during massive transfusion activation: a potential quality metric for trauma resuscitation.
Galinos Barmparas, Raymond Huang, William G Lee, Yassar M Hashim, Samuel H Pepkowitz, Ellen B Klapper, Daniel R Margulies> ;Trauma Surgery & Acute Care Open. 2022 Jan 1
4 citations
Altered type 1 interferon responses in alloimmunized and nonalloimmunized patients with sickle cell disease
Emaan Madany, June Lee, Chelsea Halprin, Jina Seo, Nicole Baca, Fataneh Majlessipour, Jeanne E. Hendrickson, Samuel H. Pepkowitz, Chelsea Hayes, Ellen Klapper, David R...> ;Ejhaem. 2021 Jul 27
10 citations
Blood group O convalescent plasma donations have significantly lower levels of SARS-CoV-2 IgG antibodies compared to blood group A donations.
Chelsea Hayes, Wesley Rubenstein, David R Gibb, Ellen Klapper, Julie Tanaka, Samuel H. Pepkowitz> ;Transfusion. 2021 May 25
38 citations
Progesterone in Addition to Standard of Care vs Standard of Care Alone in the Treatment of Men Hospitalized With Moderate to Severe COVID-19: A Randomized, Controlled ...
Sara Ghandehari, Yuri Matusov, Samuel H. Pepkowitz, Donald G. Stein, Tamana Kaderi, Divya Narayanan, Josephine Hwang, Stephanie H Chang, Robert I Goodman, Heli Ghandeh...> ;Chest. 2021 Feb 20
1 citations
Assessment of adrenal function at birth using adrenal glucocorticoid precursor to product ratios to predict short-term neonatal outcomes.
Tijen Karsli, Viral G. Jain, Maroun J. Mhanna, Qiang Wu, Samuel H. Pepkowitz, Donald W Chandler, Prem S. Shekhawat> ;Pediatric Research. 2020 Mar 1
8 citations
Vitamin D deficiency and depressive symptoms in the perinatal period
Amy Lamb, Melanie Lutenbacher, Kenneth A. Wallston, Samuel H. Pepkowitz, Brett Holmquist, Calvin J. Hobel> ;Archives of Women's Mental Health. 2018 May 29
72 citations
Intrauterine Growth Restriction Caused by Underlying Congenital Cytomegalovirus Infection
Lenore Pereira, Matthew Petitt, Alex Fong, Mitsuru Tsuge, Takako Tabata, June Fang-Hoover, Ekaterina Maidji, Martin Zydek, Yan Zhou, Naoki Inoue, Sanam Loghavi, Samuel...> ;The Journal of Infectious Diseases. 2014 May 15
22 citations
Platelet-Rich Plasma for the Replenishment of Bone
Jameel Iqbal, Samuel H. Pepkowitz, Ellen Klapper> ;Current Osteoporosis Reports. 2011 Oct 14
75 citations
Dominant TRPV4 mutations in nonlethal and lethal metatropic dysplasia.
Natalia Camacho, Deborah Krakow, Sharlin Johnykutty, Philip J. Katzman, Samuel H. Pepkowitz, Joris Vriens, Bernd Nilius, Brendan F. Boyce, Daniel H. Cohn> ;American Journal of Medical Genetics. Part A. 2010 May 1
Acute hemolysis after high-dose intravenous immunoglobulin therapy in highly HLA sensitized patients.
Kahwaji, J., Barker, E., Pepkowitz, S., Klapper, E., Villicana, R., Peng, A., Chang, R., Jordan, S. C., Vo, A. A.> ;Clin J Am Soc Nephrol. 2009 Dec 01
44 citations
Management of familial hypertriglyceridemia during pregnancy with plasma exchange
Praveen Sivakumaran, Steven W. Tabak, Kimberly D. Gregory, Samuel H. Pepkowitz, Ellen Klapper> ;Journal of Clinical Apheresis. 2009 Jan 1
24 citations
Therapeutic plasma exchange for desensitization prior to transplantation in ABO-incompatible renal allografts.
Praveen Sivakumaran, Ashley Vo, Rafael Villicana, Alice Peng, Stanley C. Jordan, Samuel H. Pepkowitz, Ellen Klapper> ;Journal of Clinical Apheresis. 2009 Jan 1
205 citations
Vaccination elicits correlated immune and clinical responses in glioblastoma multiforme patients.
Christopher J. Wheeler, Keith L. Black, Gentao Liu, Mia Mazer, Xiao-xue Zhang, Samuel H. Pepkowitz, Dennis Goldfinger, Hiushan Ng, Dwain K. Irvin, John S. Yu> ;Cancer Research. 2008 Jul 15
10 citations
A study of 534 fetal pathology cases from prenatal diagnosis referrals analyzed from 1989 through 2000.
Anna Laury, Pedro A. Sanchez-Lara, Samuel H. Pepkowitz, John M. Graham> ;American Journal of Medical Genetics. Part A. 2007 Dec 15
2 citations
Dramatic tissue response after a single granulocyte transfusion.
Shlomit Ein‐Gal, Samuel H. Pepkowitz, Carole H. Hurvitz, Dennis Goldfinger> ;Transfusion. 2007 Dec 1
15 citations
Diaphanospondylodysostosis: six new cases and exclusion of the candidate genes, PAX1 and MEOX1.
Nithiwat Vatanavicharn, John M. Graham, Cynthia J. Curry, Samuel H. Pepkowitz, Ralph S. Lachman, David L. Rimoin, William R. Wilcox> ;American Journal of Medical Genetics. Part A. 2007 Oct 1
1 citations
Polyvalvular disease in a fetus with normal chromosomes.
Michelle Miller, Deborah Krakow, Samuel H. Pepkowitz> ;Congenital Heart Disease. 2007 May 1
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Professional Memberships

American Academy of Pediatrics - AAP
Fellow

Hospital Affiliations

Cedars-Sinai Medical CenterLos Angeles, California