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William D. Stempel

Mediation Attorney at Hamden, CT

5.0   6 reviews

also known as Bill Stempel

  • State Years
    California - CA 24 years
    Connecticut - CT 42 years
    New York - NY 44 years
  • Licensed for 24 years
    State CA
    Acquired 1999
    Active No misconduct found
  • Licensed for 42 years
    State CT
    Acquired 1981
    Active No misconduct found
  • Licensed for 44 years
    State NY
    Acquired 1979
    Currently Registered No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About William

Learn William’s areas of practice.


W. D. Stempel LLC
191 Glen Pkwy
Hamden, CT, 06517

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5.0 / 5.0
  6 customer reviews
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Posted by Philip | July 22, 2015
Excellent Attorney
I have been working with Bill Stempel since 2007, when I was introduced to him by a friend who is also one of his clients. I have been very impressed with his intelligence, judgment, and broad experience in health care, life sciences, and business in general. His advice and representation have been extremely helpful to me in a variety of contract, employment, and other matters. Bill is one of my most trusted advisors and I have recommended him to a number of colleagues, who have been very pleased. He is remarkably easy to talk to, a caring and astute listener, a skilled and effective communicator, and a dependable source of wise and practical counsel on both business and legal issues. On top of that he has always been very responsive, even on short notice, and works well remotely (I am in California and he is based in Connecticut). Bill is efficient in his use of time. I am very glad to have him as my lawyer and I highly recommend him to others.
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Posted by Revati | July 17, 2015
Revati Inc a Medical Corporation
Bill has been a trustworthy pragmatic and very responsive attorney and advisor to my business. He is a tough negotiator with a very kind and calm demeanor. He has a thorough knowledge of the law and I rely on his judgment to make the correct decisions. He has reviewed every contract I have signed and I have always benefitted from his thoughtful reviews. Sometimes, the other side has expressed gratitude to him for his review as well. I would recommend him unhesitatingly. As a small business owner he has given me the cadillac service that only large companies have access to. I am very grateful for that.
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Posted by Wendy | May 19, 2015
Independent Pharmacy
William Stempel is an excellent lawyer. I found "Bill" to be down to earth, approachable, and very clear in his explanations and clarifications. He was very responsive to my requests and needs. I first used Bill's services to assist in a contract dispute with a former employer. Bill was clear, firm when necessary, and highly effective in that situation. I later hired Bill to oversee the formation of our Independent Pharmacy. I highly recommend using William Stempel for any contract, employment and / or healthcare venture or need; you'll get straightforward answers, fair pricing, highly effective work-product.
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Posted by Rob | May 13, 2015
Experienced, thoughtful, trustworthy lawyer and advisor
Bill provided me with outstanding counsel and support during a challenging legal situation involving a healthcare workplace conflict. He was generous with his time and extremely responsive. He acted with integrity, wisdom and compassion throughout a difficult process for those involved. His experience in healthcare and mediation proved invaluable. His representation also provided our party with significant credibility as he has a well deserved reputation in the healthcare-legal sector. Ultimately, he helped our party reach the outcome which we were hoping for. I give Bill my highest possible recommendation.
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Posted by David | May 12, 2015
Review of Bill Stempel as business attorney for Dianthus Bioscience L.L.C.
I recently set up a small biotech company to commercialize an invention arising from my research as a faculty member of a medical school. Bill Stempel helped me negotiate a license from the school, has served as my attorney for all transactions other than patent prosecution, and has provided exceptionally helpful business-minded legal advice. He has helped me expand my understanding of how intellectual property matters affect commercialization in the biotechnology industry. Since I have been on a rather steep learning curve throughout this process, I am grateful that I have been able to benefit from Bill's vast knowledge and experience, including his impressive grasp of biomedical science. His professionalism, flexibility and effectiveness as an attorney are exceptional. Every aspect of my interaction with Bill has been a pleasure, and I firmly believe that the support he has provided has increased my chances of success in this venture.
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Posted by Alex | May 11, 2015
Practical and perssonable legal advisor for business and contract matters.
Bill advised and helped me with contracts for several professional opportunities. Bill is very experienced in business and contract matters, particularly in the life science area, including biotech and pharmaceutical industry. He dedicated his attention to understand the context of my situation fully and asked very relevant questions. He was very detail oriented in reviewing the contracts and interacted with me promptly and professionally. I enjoyed my discussions with him, which provided me with helpful insight beyond the pure legal matters. I recommend Bill without hesitation.
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  • Free Consultation 30 minutes
  • Hourly Rates $ 375-400 per hour
Payment methods


AVVO RATING 10.0 (Superb)

Work Experience

  • Member
  • W. D. Stempel LLC
  • 2007 - Present
  • Principal
  • William D. Stempel Law and Mediation Offices
  • 2005 - 2007
  • Vice President and General Counsel
  • Geron Corporation
  • 2001 - 2004
  • General Counsel
  • UCSF Stanford Health Care
  • 1998 - 2000
  • Deputy General Counsel
  • Yale University
  • 1987 - 1998
  • Associate General Counsel
  • Yale University
  • 1982 - 1987
  • Assistant General Counsel
  • Yale University
  • 1981 - 1982
  • Associate
  • Debevoise & Plimpton
  • 1978 - 1981
View all work experience


  • Yale Law School
  • JD - Juris Doctor
  • 1978
  • Yale University
  • BA - Bachelor of Arts
  • 1975


  • Connecticut Bar Association
  • Executive Committee, ADR Section
  • 2014 - Present
  • Community Mediation, Inc.
  • President
  • 2011 - 2016
  • Association for Conflict Resolution
  • Co-Editor, ACResolution Magazine
  • 2011 - 2016
  • Association for Conflict Resolution
  • Co-chair, Healthcare Section
  • 2009 - 2011
  • Community Mediation, Inc.
  • Board Member
  • 2008 - 2016
  • Association of Corporate Counsel (San Francisco Bay Area chapter)
  • Co-chair, Life Sciences Committee
  • 2005 - 2007
  • National Association of College and University Attorneys
  • Publications Committee Chair
  • 1996 - 1998
  • Journal of College and University Law
  • Editorial Board Chair
  • 1996 - 1998
  • National Association of College and University Attorneys
  • Board of Directors
  • 1994 - 1997
  • New York City Bar Association
  • Committee on Patents
  • 1990 - 1993
View all associations

Languages Spoken

  • English

Honors and Awards

  • BV Rated
  • Martindale-Hubbell
  • 2015
  • Presidential Award
  • Association for Conflict Resolution
  • 2013

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Hamden Mediation Lawyer William D. Stempel
William D. Stempel
Mediation Attorney
Hamden, CT
Licensed for 44 years
Free Consultation