Meet Our Team | Congregation Beth Am

Meet Our Team

Meet Our Team


Rabbi Janet



Sarah Lauing

Alex Lyon

Rabbi Jon Prosnit

Diane Rauchwerger  


Molly Roston

Cantor Jaime Shpall

Vicki Streeter

Rabbi Heath
Rabbi Sarah Weissman

Nirit Zandman











Congregation Beth Am is served by an outstanding clergy and programming staff. Rabbi Janet Marder, who has been with Beth Am since 1999, is the fourth senior rabbi in the history of Beth Am. She sets a tone of warmth and inclusiveness that permeates this dynamic staff. Our staff come from a variety of Jewish backgrounds and reflect the wonderful diversity that is characteristic of this community.

Sermon Archives

Rabbi Janet Ross Marder, Senior Rabbi

Rabbi Janet Marder, a Los Angeles native, graduated from the University of California at Santa Cruz and was ordained in 1979 by the Hebrew Union College-Jewish Institute of Religion in New York. Following ordination, she pursued graduate studies in the Department of Comparative Literature at UCLA, specializing in Modern Hebrew and Yiddish.

In 1983, she became the first ordained rabbi of Beth Chayim Chadashim, a Los Angeles synagogue with special outreach to lesbian and gay Jews. During her five years with that congregation, she founded NECHAMA, a Federation-funded program of AIDS education for the Jewish community. From 1988 to 1999, Rabbi Marder served the Union of American Hebrew Congregations (now the URJ), providing leadership and guidance to Reform synagogues in Southern California, Arizona, New Mexico, Nevada and Texas.

In August 1999, she became Senior Rabbi of Congregation Beth Am. In her Vision for the Congregation, presented in April 2009, she said, “I want us to be a congregation that is Jewishly dynamic, focused on moving every member forward from where they are right now. Imagine a synagogue in which you’re always looking for ways to climb up to the next step; progressing towards deeper learning, richer faith and spiritual development, greater commitment and practice. In this place, we’re ambitious for our own growth; we’ve tasted something delicious and we’re always hungry for the next bite. Our Judaism is not fueled by habit, guilt or fear of anti-Semitism; we’re drawn forward by love and joy, motivated by curiosity and the search for meaning. We know that new discoveries will unfold every year of our life; we’re excited about making this lifelong journey with good companions who will be with us all the way.”

Rabbi Janet Marder's articles have appeared in Reform Judaism Magazine, The Reconstructionist, Sh'ma and several anthologies. She has served as President of the Pacific Association of Reform Rabbis, the first woman and the first non-congregational rabbi to be elected to that office. In April 2003 Rabbi Marder was elected the first woman president of the Central Conference of American Rabbis. She is a Senior Rabbinic Fellow of the Shalom Hartman Institute in Jerusalem. Rabbi Marder and her husband, Rabbi Sheldon Marder, served as co-editors, translators, writers and commentators for two liturgical projects published by the Reform Movement: Mishkan HaNefesh: Machzor for the Days of Awe, and Mishkan HaLev: Prayers for S'lichot and the Month of Elul (CCAR, 2015 and 2017). The Marders have two daughters, Betsy and Rachel, and three grandchildren, Maisie Frances, Judah Gabriel and Oze Baldwin Rafael.

Rachel Tasch, Executive Director

Rachel Tasch joined Beth Am as Executive Director in June, 2012. In this role, Rachel combines her passion for engaging others in Jewish life with her professional management experience. Before settling in California in 1998 and joining Beth Am, Rachel worked in health care consulting in Canada. As our Executive Director, Rachel oversees the daily operations of the congregation, translating Beth Am’s mission statement into concrete reality. She oversees finance, technology and facilities, setting a tone of warmth in every interaction. She enjoys helping members and prospective members take the next step on their Jewish journey.

Before joining the Beth Am staff, Rachel was a member of the Board of Directors from 2005-2012, serving as President of the congregation from 2009-2011. During her tenure as President, she spearheaded the acquisition of the adjacent parcel of land purchased in 2011. Rachel holds a bachelor’s degree in Human Biology from Stanford University and an MBA, with a focus on marketing, finance and health administration, from the University of Chicago. More recently, she participated in the Wexner Heritage Program, an intensive Jewish studies program for community leaders across the country.

Rachel and her husband Ted live in Menlo Park. Their three children are heading out into the world: Sam (having launched himself), Ethan and Joanna (off at college). With her kids, she enjoys following college and professional basketball. In her free time, she and Ted love to hike, and they have completed a few half marathons together.


Mandy Eisner, Director of Development

Mandy Eisner oversees all development-related activities at Beth Am. She has helped Beth Am ensure long-term financial stability through the campaign for the Fund for the Future endowment, is currently managing the From Strength to Strength campaign, and created and directs our Annual Campaign, Legacy Giving program and various special community events.

A Bay Area native and graduate of UC Santa Barbara with degrees in English and French, Mandy has had adventures living in France, Jerusalem, New York and Los Angeles and has worked in the non-profit sector since 1993. Before joining the Beth Am team in 2007, Mandy was the Regional Director for the Association of Reform Zionists of America and World Union for Progressive Judaism in Los Angeles. During that time, she raised awareness and funds for the international Reform movement and had the fascinating opportunity to work with Progressive Jews from all over the world. She is the Immediate Past President of ATID (Advancing Temple Institutional Development), the Union for Reform Judaism’s development professional affiliate group.
Mandy is married to Dennis Eisner, who is the Senior Rabbi of Peninsula Temple Beth El in San Mateo. They have a daughter, Sadie, and son Max.

Sarah Lauing, Director of Learning and Educational Innovation

Sarah Lauing grew up at Beth Am and was the congregation's Youth Advisor from 2007-2009. She holds an MA in Jewish Education from the Hebrew Union College's Rhea Hirsch School of Education in Los Angeles and a BA in Religion from Middlebury College in Vermont. Before returning to Beth Am, Sarah served as Youth and Family Educator at Temple Shaaray Tefila on New York's Upper East Side, where she directed the MASA Family Learning Program and implemented a student-driven religious school program for teens.

Most recently, Sarah served as Associate Director of URJ Crane Lake Camp in West Stockbridge, MA, where she supervised Jewish life and education and created an integrated Jewish values curriculum. Sarah received the AVICHAI Award for Excellence in Jewish Education at Camp. Sarah has participated in several educational fellowships including a Masters Concentration in Israel Education with the iCenter, Nadiv Fellowship with the Foundation for Jewish Camp, and Senior Educators Cohort with M2: The Institute for Experiential Education.

As Director of Learning and Educational Innovation, Sarah supervises all youth education programs, implementing Beth Am's bold educational vision.

Alex Lyon, Education Program Director
Alex came to Beth Am from Wisconsin, where she spent eight years with the Wisconsin Restaurant Association Education Foundation as the ProStart® Coordinator, working with students, parents, teachers and administrators at over 100 high schools statewide and a variety of post-secondary institutions. Under her tenure, thirty new schools joined the program and she developed teacher support materials that are now used in ProStart programs around the country. She has a master’s degree in Art History from the University of Wisconsin-Madison. Alex taught Art History part-time at Madison College for four years and now teaches part-time at City College of San Francisco. She also remains active in academia outside of work, serving as the Celebrity and Stardom Area Chair for the Midwest Popular Culture Association and on multiple post-secondary scholarship committees.

Rabbi Jonathan Prosnit, Associate Rabbi

Rabbi Jonathan Prosnit was born on Manhattan's Upper West Side. He earned his bachelor's degree from Trinity College in Hartford, CT and was ordained by the Hebrew Union College in New York City. As a Rabbinical student, he has worked in East Liverpool, Ohio; Melbourne Australia; and at Temple Micah in Washington, D.C. Rabbi Jonathan has also interned at Westchester Reform Temple where he worked on their Next Dor project, creating dynamic programs geared toward New York's unaffiliated 20/30-year-olds. Prior to Rabbinical School, Rabbi Jonathan worked as a Community Liaison for a New York State Senator and as an ESL teacher in Santiago, Chile.

Rabbi Jonathan joined the Beth Am team in the summer of 2011. At Beth Am, Rabbi Jonathan works with middle and high school students, the Beth Am Men's group (BAM) and with the Beth Am's social justice and social action networks. He likes to be outdoors and loves to play golf, tennis and basketball. Rabbi Jonathan is married to Erin Gleeson, who is a photographer. They have two sons, Ezra and Max!

Diane Rauchwerger, Beth Am Librarian

Since 1990, Diane has been the librarian at Congregation Beth Am, Los Altos Hills, CA and was a children’s librarian in the Sunnyvale Public Library. She has a Bachelor’s degree in Education from Cal Poly, San Luis Obispo, a California Teaching Credential and a Masters of Library Science from San Jose State University.

She has been a member of the Association of Jewish Libraries (AJL) for over 25 years; and was a member of the Sydney Taylor Book Award Committee for AJL for four years, serving as the chair of the committee for two years. Currently, Diane is the author of the dinosaur series of children’s picture books, delightfully illustrated by Jason Wolff, published by Kar-Ben Publishing. The latest book in the series is Dinosaur Goes to Israel, which was a PJ Library selection for three-year-olds in April 2018.

Molly Roston, Youth Advisor

Molly Roston grew up at Beth Am and was an active member of Beth Am Temple Youth (BATY). Molly has a degree in Psychology from Santa Clara University and is interested in pursuing graduate studies in occupational therapy in the future.

For the past two years, Molly has been working closely with our teens as a B'nei Mitzvah tutor and running the Beit Midrash B'nei Mitzvah preparation program. In addition to being Beth Am's Youth Advisor, she will continue to work in her B'nei Mitzvah role. She is eager to work with the incoming BATY board, engaging our high school students in Jewish life at Beth Am and in the larger community through participation in youth group and other activities. She is also excited to re-launch our middle school youth group, Beth Am Junior Youth (BAJY).

When she's not at Beth Am, Molly enjoys spending time with her grandparents and visiting her sisters in Seattle and Washington, D.C. when she gets the chance. She also enjoys hiking, playing tennis and hanging out with her yellow lab, Cody.

The Youth Advisor position is partially funded by a grant from the Seiler Family Fund of the Jewish Community Endowment Fund.

Cantor Jaime Shpall, Cantor

Originally from Southern California, Cantor Jaime Shpall joined Beth Am after 16 years of serving congregations, first in Austin, Texas and then in Scottsdale, Arizona. Her beautiful voice and warm personality made her beloved in both congregations.

At Beth Am, Cantor Shpall leads our B’nei Mitzvah program and has been implementing innovations that help build feelings of community and love for Judaism among kids and families alike. Through her work with the URJ’s Communities of Practice – B’nei Mitzvah Revolution, Cantor Shpall has introduced our annual 6th Grade Family Retreat, for upcoming B’nei Mitzvah and their families as well as our 7th grade Beit Midrash class.

Cantor Shpall received Bachelor's degrees in Psychology and Music from the University of California, Santa Cruz, during which time she worked on the staff of Camp Swig and taught religious school in our area (even substitute teaching at Beth Am on occasion!). She was ordained in 1997 by the Debbie Friedman School of Sacred Music of the Hebrew Union College – Jewish Institute of Religion, and she recently participated in the Clergy Leadership Program of the Institute for Jewish Spirituality. Cantor Shpall and her husband, Marcel Bergmann, are the proud parents of twins, Samuel and Ella, who are members of the Zimriyah, Beth Am’s fabulous Jr. Choir.

Vicki Streeter, Education Program Director

Vicki Streeter has taught in our programs, coordinated retreats, and helped run our Youth Education programs since 2005. She has been Mike Mason’s assistant director of Camp Beth Am for years and served as interim Sunday program director during a previous staff member’s maternity leave. She also is behind all the creative activities in Tot Shabbat.  Vicki holds a teaching credential and taught in the Los Gatos school district for 15 years. She lives in Los Gatos with her husband Jim and their dog, Ziggy. They are the parents of Robby and David (who is married to Hillary).



Rabbi Heath Watenmaker, Associate Rabbi

After his ordination in 2011 from Hebrew Union College – Jewish Institute of Religion, Rabbi Heath served as Reform Outreach Initiative Rabbi at Rutgers Hillel in New Jersey (the first initiative of its kind). In addition to his rabbinical degree, Rabbi Heath holds a Masters in Social Work from USC (where he also earned a BA in English) and a Masters in Jewish Communal Service from HUC.

In his Associate Rabbi role at Beth Am, Rabbi Heath has a full range of worship, pastoral and lifecycle responsibilities, with a special emphasis on member engagement. His work involves implementing innovative ways of engaging members of all ages, developing Beth Am’s Small Groups initiative, as well as enhancing Shabbat worship and teaching courses, especially on “big questions” in Judaism. He also has a passion for advocacy and social justice.

Originally from Southern California, Rabbi Heath and and his wife, Amy, are proud parents of a son, Ilan, and daughter, Cayla.


Rabbi Sarah W. Weissman, Associate Rabbi

Rabbi Sarah Weissman has been at Congregation Beth Am since 2008. In addition to her pastoral and pulpit duties, Rabbi Sarah oversees the adult education program, and teaches a popular Talmud class and the Adult B'nai Mitzvah class. She also serves as the staff person on the Interfaith Outreach Committee.

Rabbi Sarah was born and raised in Santa Fe, New Mexico. She grew up in the warm embrace of Temple Beth Shalom in Santa Fe, where she volunteered in the administrative office and grew to love the day-to-day workings of the synagogue. She attended Amherst College in Massachusetts and graduated summa cum laude in 2003 with a degree in religion.

In 2008, Rabbi Sarah was ordained at the New York campus of Hebrew Union College-Jewish Institute of Religion. During her tenure at HUC, Rabbi Sarah served several small congregations in the South. She also worked as a teaching and research assistant to Dr. Eugene Borowitz, one of the leading theologians of the Reform movement.

Rabbi Sarah and her husband, Eric Weissman, are proud parents of a son, Maverick.

Nirit Zandman, Inclusion Director

Nirit Zandman joined Beth Am in December 2016 as the Inclusion Director, with 25 years of experience educating, evaluating, consulting and advocating for children and adults with a wide range of special needs. She holds a master’s degree and a teaching certificate in special education from Tel Aviv University in Israel, and is also a certified Educational Therapist and an ADHD coach. After moving to the Bay Area, she spent eight years working at Jewish Family and Children Services on the Peninsula as the Program Coordinator of the Center for Special Needs and as an educational therapist.

Nirit has developed and implemented teacher trainings and parent workshops on inclusion, learning strategies, ADHD and special education regulations. Nirit provides consultation for different programs and organizations, including Jewish schools, preschools and congregations. Nirit strongly believes that all children deserve high-quality, empowering and inclusive education and is passionate about making Jewish communities open and welcoming to all.

The Inclusion Director position was made possible by the generous support of our members during the Beth Am 60th anniversary appeal, and is part of ongoing efforts to make Beth Am inclusive to all.

Rabbi Emeritus Sidney Akselrad (z"l)

Rabbi Sidney Akselrad was Beth Am's Senior Rabbi from 1962-1986 and continued to be a leader in the spiritual life of our congregation until his death November 14, 2006. He was past president of the Western Association of Reform Rabbis, and the Palo Alto Ministerial Association. He was also a recipient of the Jewish Community Service Award and the Stanford University Hospital Distinguished Service Award. Rabbi Akselrad was devoted to promoting civil rights throughout his life. He was founder of the Opportunity Industrialization Center West (OICW), which trained thousands of minority workers. He participated with Dr. Martin Luther King and the Freedom Riders and marched for civil rights in Selma and Montgomery, Alabama. Rabbi Akselrad's deep personal commitment served as an example and inspiration.


Rabbi Emeritus Richard A. Block

Rabbi Block was ordained and awarded a Master of Arts in Hebrew Letters at Hebrew Union College - Jewish Institute of Religion in Cincinnati, Ohio in 1982. Upon ordination, he was chosen Rabbi of Greenwich Reform Synagogue in Riverside, CT. Rabbi Block was Senior Rabbi of Congregation Beth Am from 1987 until 1999. His achievements included: a process of educational innovation that inspired a national partnership, the "Experiment in Congregational Education;" the creation of a nationally recognized program to integrate émigrés from the former Soviet Union in Jewish life; and the Koret Synagogue Initiative, a unique collaboration between synagogues, the Koret Foundation and the Jewish Community Federation, aimed at reinvigorating synagogue life.

Prior to his rabbinical studies, Rabbi Block graduated with honors from the Wharton School of the University of Pennsylvania and Yale Law School, where he was an editor of the Yale Law Journal.

Rabbi Block has served as Senior Rabbi of The Temple-Tifereth Israel in Cleveland and Beachwood, Ohio since May 2001. He and Susan G. Block have been married since 1969 and have two adult sons.


Cantor Emerita Kay Greenwald

In August 1997, Cantor Kay Greenwald became Congregation Beth Am's Cantor after serving for five years as Assistant and then Associate Cantor of our congregation. Before attending Hebrew Union College - Jewish Institute of Religion School of Sacred Music, Cantor Kay pursued her Masters from the Eastman School of Music and sang opera throughout the world. She was the first woman to serve as clergy at Beth Am.

Cantor Kay continues to participate in the musical life of the congregation, singing occasionally on the bimah and concert venues, as well as participating in life cycle events from time to time. A past president of the American Conference of Cantors (ACC) -- the professional cantorial organization of the Reform Movement -- Cantor Kay currently serves as Director of Placement for the ACC.


Cantor Emeritus David Unterman (z"l)

Cantor Dave Unterman served as Beth Am's Cantor from 1981 to 1997. He continued to be an active part of the Beth Am community, teaching Jewish Spirituality and participating in musical events at Beth Am until his death on March 26, 2016. A veteran of musical theater and opera, Cantor Dave sang with the San Francisco and New York Metropolitan Operas, the Lamplighters and the American Savoyards. He was a graduate of the Hebrew Union College - Jewish Institute of Religion's School of Sacred Music. During his many years as cantor, he trained hundreds of young congregants for their B'nei Mitzvah as well as many adults who participated in the Adult B'nei Mitzvah program. Cantor Dave also led the volunteer adult choir and worked with the Beth Am Music Committee.

Return to Top

Congregation Beth Am
  • 26790 Arastradero Rd., Los Altos Hills, CA 94022
  • (650) 493-4661 Contact Us

We strive to live as a holy community whose study and practice of Judaism inspires and challenges us to "do justice, to love kindness and to walk humbly with our God" (Micah 6:8).