Our People
Partner
Ales Bartl, Ph.D.
Partner
Thomas C. Berger
Partner
J. Kathleen Bond
Partner
Rachel A. Bond
Partner
Sophia B. Castillo
Partner
Azim Chowdhury
Partner
Gregory A. Clark
Partner
Mitzi Ng Clark
Partner
Peter Craddock
Partner
Timothy A. Doughty
Partner
Trent M. Doyle
Partner
Herbert Estreicher, Ph.D.
Partner
David J. Ettinger
Partner
Arthur S. Garrett III
Partner
Eric P. Gotting
Partner
Lawrence P. Halprin
Partner
Devon Wm. Hill
Partner
![Portrait of David Joy, Partner at Keller and Heckman LLP](/sites/default/files/styles/headshot_small/public/2023-12/BioPhoto_Joy_David.png?itok=Pf0nWcy8)
David R. Joy
Partner
Jeffrey A. Keithline
Partner
Gregory E. Kunkle
Partner
Pamela L. Langhorn
Partner
![Casey Lide](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Lide_Casey.png?itok=cw3mH7oQ)
Casey Lide
Partner
Cynthia B. Lieberman
Partner
Thomas B. Magee
Partner
Richard F. Mann
Partner
Tracy P. Marshall
Partner
Sheila A. Millar
Partner
George G. Misko
Partner
Catherine R. Nielsen
Partner
Michael T. Novak
Partner
Hazel O'Keeffe
Partner
Anthony T. Pavel
Partner
Evangelia C. Pelonis
Partner
Manesh K. Rath
Partner
Rohit A. Sabnis
Partner
Rachida Semail
Partner
Craig Simpson
Partner
Kathryn C. Skaggs
Partner
Frederick A. Stearns
Partner
Sean A. Stokes
Partner
Mark Thompson
Partner
James G. Votaw
Partner
Jean-Cyril Walker
Partner
Wesley K. Wright
Partner
Senior Counsel
![Jim Baller](/sites/default/files/styles/headshot_small/public/2022-12/BioPhoto_Baller_Jim.png?itok=HsuWgJoe)
James Baller
Senior Counsel
![Douglas Behr](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Behr_Douglas.png?itok=l9sxtmnB)
Douglas J. Behr
Senior Counsel
![Peter de la Cruz](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_de%20la%20Cruz_Peter.png?itok=Xc6IdBkO)
Peter L. de la Cruz
Senior Counsel
![Robert Niemann](/sites/default/files/styles/headshot_small/public/2021-01/BioPhoto_Niemann_Robert.png?itok=4o5KyxJY)
Robert S. Niemann
Senior Counsel
Counsel
Jennifer A. Bonanno
Counsel
Colleen M. Evale
Counsel
David B. Fischer, M.P.H.
Counsel
Sara M. Gaines
Counsel
Neelam Gill
Counsel
Alisa Aija Karlsons
Counsel
Daniel P. McGee
Counsel
Antonia Stamenova-Dancheva
Counsel
Senior Regulatory Counselor
![Eric Gu](/sites/default/files/styles/headshot_small/public/2021-01/BioPhoto_Gu_Eric.png?itok=h6bFAQxD)
Eric Gu
Senior Regulatory Counselor
![Jenny Li](/sites/default/files/styles/headshot_small/public/2021-02/BioPhoto_Li_Jenny_2.png?itok=iGiR6rBQ)
Jenny Xin Li
Senior Regulatory Counselor
Associate
Kelsey K. Anliker
Associate
Seun V. Awotunde
Associate
Kristen M. Ballintyn
Associate
![Portrait of Samuel Butler, Associate at Keller and Heckman LLP](/sites/default/files/styles/headshot_small/public/2023-12/BioPhoto_Butler_Sam.png?itok=efNTfj5U)
Samuel A. Butler
Associate
Catarina M. Conran
Associate
![Ryan D'Souza](/sites/default/files/styles/headshot_small/public/2022-11/BioPhoto_DSouza_Ryan.png?itok=kviSqeQq)
Ryan D’Souza
Associate
![Yin Dai](/sites/default/files/styles/headshot_small/public/2021-01/BioPhoto_Dai_Yin.png?itok=ouKBaxte)
Yin Dai
Associate
Isaline d’Hoop de Synghem
Associate
Kristina L. Everett
Associate
![Liam Fulling](/sites/default/files/styles/headshot_small/public/2023-11/BioPhoto_Fulling_Liam.png?itok=VzS4_Jcu)
Liam F. Fulling
Associate
Jillian R. Guernsey
Associate
![Lauren Haas](/sites/default/files/styles/headshot_small/public/2023-04/BioPhoto_Haas_Lauren.png?itok=QbP1Odiu)
Lauren A. Haas
Associate
![Josephine Hsu](/sites/default/files/styles/headshot_small/public/2021-10/BioPhoto_Hsu_Josephine.png?itok=Be7IXjXZ)
Josephine Hsu
Associate
![Photo Coming Soon](/sites/default/files/styles/headshot_small/public/2021-01/BioPhoto_NoPhoto.png?itok=0iZWdKoO)
Benjamin Idzik
Associate
Taylor D. Johnson
Associate
![Ian Murray](/sites/default/files/styles/headshot_small/public/2022-10/BioPhoto_Murray_Ian_0.png?itok=zve_QoUF)
Ian J. Murray
Associate
![Alexa Pecht](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Pecht_Alexa.png?itok=cL1nLVCX)
Alexa M. Pecht
Associate
Alejandra Martínez Perea
Associate
![Nicholas Prust](/sites/default/files/styles/headshot_small/public/2022-10/BioPhoto_Prust_Nicholas_1.png?itok=b1CauyFH)
Nicholas S. Prust
Associate
![Anushka Rahman](/sites/default/files/styles/headshot_small/public/2021-03/BioPhoto_Rahman_Anushka.png?itok=1kYbsfWC)
Anushka N. Rahman
Associate
![Galen Rende](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Rende_Galen.png?itok=Vw_pMafb)
Galen D. Rende
Associate
![Thomas Smith](/sites/default/files/styles/headshot_small/public/2023-11/BioPhoto_Smith_Thomas.png?itok=CHd7OgVW)
Thomas J. Smith
Associate
![Matteo Squeo](/sites/default/files/styles/headshot_small/public/2024-05/BioPhoto_Squeo_Matteo.png?itok=uj1bizLY)
Matteo Squeo
Associate
LieAnn T. Van-Tull
Associate
![Cody Coulter](/sites/default/files/styles/headshot_small/public/2023-12/BioPhoto_Coulter_Cody.png?itok=szgTk4vA)
Codi R. Walton
Associate
![Portrait of Sara Zeimer, Associate at Keller and Heckman LLP](/sites/default/files/styles/headshot_small/public/2023-12/BioPhoto_Zeimer_Sara_v2.png?itok=zpgKHoR8)
Sara M. Zeimer
Associate
Scientist
Cheryl B. Bast, Ph.D., D.A.B.T.
Scientist
Ivan J. Boyer, Ph.D, D.A.B.T.
Scientist
Iris A. Camacho-Ramos, Ph.D.
Scientist
Rhys G. Daniels, Ph.D.
Scientist
![Holly Foley](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Foley_Holly.png?itok=54XSGWDS)
Holly H. Foley
Scientist
Adam W. Freeman, Ph.D.
Scientist
Preston A. Fulmer, Ph.D.
Scientist
Matthew B. Harney, Ph.D.
Scientist
![Mark Hepp](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Hepp_Mark.png?itok=9KtX8YD1)
Mark A. Hepp, Ph.D.
Scientist
![Chen Hu](/sites/default/files/styles/headshot_small/public/2021-02/BioPhoto_Hu_Chen_2.png?itok=tB1-N1OM)
Chen Hu
Scientist
Javier Jaramillo García, Ph.D.
Scientist
Qingdong (Karin) Ke, Ph.D., D.A.B.T., ERT
Scientist
Steven J. Manning, Ph.D.
Scientist
![Amanda Price](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Price_Amanda.png?itok=F9F-_5Zr)
Amanda C. Price
Scientist
Justin P. Roberts, Ph.D.
Scientist
Ivan Scodeller, Ph.D.
Scientist
![Tjoena Siere](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Siere_Tjoena.png?itok=sldfAYXL)
Tjoena Siere
Scientist
Kristin Price Wiglesworth, Ph.D.
Scientist
Law Graduate
![Photo Coming Soon](/sites/default/files/styles/headshot_small/public/2021-01/BioPhoto_NoPhoto.png?itok=0iZWdKoO)
Amber J. Grover
Law Graduate
Regulatory and Scientific Affairs Counselor
![Christophe Lepretre](/sites/default/files/styles/headshot_small/public/2021-01/BioPhoto_Lepretre_Christophe.png?itok=Gkk3mGAt)
Christophe Leprêtre
Regulatory and Scientific Affairs Counselor
Christophe Leprêtre
Regulatory and Scientific Affairs Counselor
Legal Consultant
![Sharon Tian](/sites/default/files/styles/headshot_small/public/2021-02/BioPhoto_Tian_Sharon_2.png?itok=c4oB9Czc)
Suyan (Sharon) Tian
Legal Consultant
Advisor – Japanese Relations
![TK Namba](/sites/default/files/styles/headshot_small/public/2022-01/BioPhoto_Namba_TK.png?itok=GLfLHFn0)
Takashi Namba
Advisor – Japanese Relations
Paralegal
Jaimy (Sindy) Alarcon
Paralegal
Administrative Management Team
![Sharon Drummond](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Drummond_Sharon.png?itok=wO1d2_Bm)
Sharon D. Drummond, Director of Administrative Operations
Administrative Management Team
Sharon D. Drummond, Director of Administrative Operations
Administrative Management Team
![Marybeth Norris](/sites/default/files/styles/headshot_small/public/2021-02/BioPhoto_Norris_Marybeth.png?itok=RqjI387C)
Marybeth Norris, Director of Finance
Administrative Management Team
Marybeth Norris, Director of Finance
Administrative Management Team
![Caryn Wick](/sites/default/files/styles/headshot_small/public/2021-01/BioPhoto_Wick_Caryn.png?itok=QMYZfaH_)
Caryn M. Wick, Director of Marketing
Administrative Management Team
Caryn M. Wick, Director of Marketing
Administrative Management Team
In Memoriam
![Jerome Heckman, In Memoriam](/sites/default/files/styles/headshot_small/public/2021-01/BioPhoto_InMemoriam_Heckman.png?itok=bblvm6YU)
Jerome H. Heckman
In Memoriam
Retired
![Melvin Drozen](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Drozen_Melvin.png?itok=bU9M38EV)
Melvin S. Drozen
Retired
![Douglas Jarrett](/sites/default/files/styles/headshot_small/public/2020-12/BioPhoto_Jarrett_Douglas.png?itok=uiLtdufC)
C. Douglas Jarrett
Retired