C. Mark Humbert

Navigating the intricate landscape of employee benefits, health care disputes, or complex business litigation can often feel like a formidable challenge for both individuals and organizations. For residents and businesses across California, particularly within the bustling and competitive San Francisco Bay Area, finding a legal professional who combines deep specialization with extensive experience and a proven track record is paramount. This article introduces C. Mark Humbert, a highly distinguished attorney serving the San Francisco community from his well-established office on Montgomery Street. With a clear commitment to providing comprehensive, insightful, and effective legal guidance, C. Mark Humbert stands as a trusted resource for those seeking astute support and resolution in high-stakes legal matters.

C. Mark Humbert’s practice is built upon a robust foundation of profound legal knowledge, honed over decades, and a steadfast dedication to achieving optimal outcomes for his clients. He understands that complex legal matters, especially in areas like ERISA/employee benefits and health care, demand not only sharp analytical skills but also a strategic and meticulous approach to litigation and dispute resolution. His philosophy centers on empowering clients with the comprehensive information and tailored strategies they need to make well-informed decisions, ensuring they feel confident and thoroughly prepared throughout every stage of their legal journey. Whether you are confronting an employee benefits dispute, a challenging health care claim, or seeking an experienced ADR neutral, C. Mark Humbert offers a professional, reliable, and supportive environment where your concerns are addressed with exceptional attention to detail and a commitment to effective solutions. This dedication to robust and personalized legal service makes him a significant and respected presence within the San Francisco legal landscape.

C. Mark Humbert's office is strategically situated at 220 Montgomery St, Suite 1068, San Francisco, CA 94104, USA. This prominent address places his practice squarely in the heart of San Francisco’s renowned Financial District, ensuring exceptional accessibility for clients throughout the entire Bay Area. Located within The Mills Building, a well-known and historic landmark in downtown San Francisco, the office offers a professional, secure, and comfortable setting for legal consultations. Its central location within this key business hub reflects Mr. Humbert's established presence and commitment to serving clients in a premier urban environment.

For those relying on public transportation, the office enjoys outstanding connectivity. It is mere steps away from several major MUNI and BART stations, most notably the Montgomery Street Station, offering seamless access from various neighborhoods across San Francisco and the wider Bay Area. Numerous MUNI bus lines also service the immediate vicinity, providing diverse and efficient options for clients to reach the office without the typical urban challenges of heavy traffic or arduous parking. For clients who prefer to drive, a variety of commercial parking garages are conveniently located nearby, though public transit remains a highly recommended and convenient option given the vibrant downtown setting. The central placement of C. Mark Humbert’s office also means easy access to a range of other professional services and amenities, which can be beneficial for clients during their visits. This prime location solidifies C. Mark Humbert's commitment to being readily available and convenient for his clients when their legal needs arise.

C. Mark Humbert brings decades of experience to his practice, specializing in complex areas of law that often involve federal regulations and high stakes. His primary practice areas include:

• Employee Benefits (ERISA) Litigation: This is a core area of his practice, focusing on disputes related to employee benefit plans governed by ERISA (Employee Retirement Income Security Act). This includes litigation concerning retirement plans, pension plans, 401(k) plans, and other employee welfare benefits. He represents plan sponsors, fiduciaries, and individuals.
• Life, Health, and Disability Insurance Litigation: Mr. Humbert represents clients in disputes involving life insurance claims, health insurance coverage, and long-term disability benefit denials. He helps policyholders and beneficiaries navigate complex insurance policy terms and challenge unjust denials.
• Health Care Disputes: He handles a variety of legal issues within the healthcare sector, including disputes between managed care entities and payor-providers. This involves complex contractual and regulatory challenges in the healthcare industry.
• Alternative Dispute Resolution (ADR): As an experienced litigator and ADR neutral, C. Mark Humbert is skilled in resolving disputes outside of court through methods such as mediation and arbitration. This can offer more efficient and less adversarial solutions for his clients.
• US Department of Labor (DOL) Employee Benefit Security Administration Audits and Investigations: He represents clients facing audits and investigations by the DOL's Employee Benefit Security Administration, providing expert guidance through these often complex regulatory processes.
• Business Litigation: Beyond his specialized areas, he also handles general business litigation, representing companies and individuals in various commercial disputes and contractual issues.

C. Mark Humbert's practice is distinguished by several significant features that underscore his expertise, reputation, and commitment to his clients.

• Extensive Experience: Admitted to the State Bar of California in 1983, Mr. Humbert boasts over 40 years of legal experience. This extensive tenure means a profound understanding of California and federal law, and a seasoned approach to complex legal challenges.
• Highly Rated by Super Lawyers: He has been consistently selected to the Super Lawyers list from 2012 to 2025, and in 2016, he was ranked among the Top 100 Super Lawyers in Northern California. This peer-recognized achievement highlights his high degree of professional excellence.
• AV-Rated Attorney: Mr. Humbert holds an "AV" rating by Martindale-Hubbell, the highest possible rating for legal ability and ethical standards, reflecting the respect he has garnered from his peers.
• Expert in ERISA and Employee Benefits: His concentration in ERISA/employee benefits litigation is a significant highlight, demonstrating a deep specialization in a highly complex and technical area of law.
• Experienced ADR Neutral: His expertise as an ADR neutral means he is adept at guiding parties towards resolution outside of traditional courtroom litigation, which can be a more efficient and cost-effective approach for clients.
• Broad Court Admissions: He is admitted to practice before all state and federal courts in California (at both trial and appellate levels), as well as the United States Supreme Court, showcasing his extensive reach and capability. He has also been admitted pro hac vice in the United States District Courts for the Districts of Nevada and Utah.
• Active Professional Leadership: Mr. Humbert has served in various capacities with prestigious organizations like the American Bar Association (including as Past Chair of the TIPS Employee Benefits Committee), the Defense Research Institute, the American Bar Foundation (Life Fellow), and the American Health Lawyers Association (Member and Neutral on Dispute Resolution Panels). This involvement demonstrates his commitment to the legal community and staying at the forefront of legal developments.

While specific, publicly advertised promotions or special offers are not available for C. Mark Humbert, it is a standard practice for legal professionals of his extensive experience and stature to offer initial consultations to prospective clients. These consultations serve as a crucial opportunity for individuals and businesses to discuss their specific legal challenges, gain preliminary insights into potential legal strategies, and determine if Mr. Humbert's expertise and approach are the appropriate fit for their particular needs. During such a consultation, C. Mark Humbert would typically outline his fee structure transparently, which may involve hourly rates or potentially other arrangements, ensuring clarity regarding the financial aspects of engaging his legal expertise. It is always advisable for interested parties to directly inquire about the availability of an initial consultation and any associated fees when contacting his office to schedule an appointment. This direct communication ensures full transparency and mutual understanding from the outset.

If you are located in California and seeking highly experienced legal counsel for matters related to employee benefits, health care disputes, or complex litigation, you can reach C. Mark Humbert using the following contact details:

Address: 220 Montgomery St, Suite 1068, San Francisco, CA 94104, USA

Phone: (415) 837-5433

Mobile Phone: +1 415-837-5433

For residents and businesses across California, particularly those operating within the intricate and highly regulated landscape of the San Francisco Bay Area, securing legal representation that is both profoundly specialized and widely respected is an undeniable advantage. C. Mark Humbert, with his office strategically located at 220 Montgomery Street in the thriving heart of San Francisco’s Financial District, offers precisely this combination. His practice is exceptionally suitable for locals due to his decades of specialized legal experience in critical areas like employee benefits (ERISA) and health care, his esteemed professional recognition, and his prime, highly accessible downtown location.

C. Mark Humbert brings over 40 years of navigating California and federal law, providing invaluable expertise in complex and often high-stakes areas. His consistent recognition as a Super Lawyer and his "AV" rating by Martindale-Hubbell signify a level of professional excellence and ethical conduct that provides significant reassurance to clients. For individuals facing issues with their employer's benefits, or for businesses dealing with health care regulations and disputes, Mr. Humbert's focused knowledge offers a distinct advantage. The accessibility of his office, situated just steps from major public transportation hubs, means that clients from various parts of San Francisco and the wider region can easily consult with him without undue travel burden. This convenience is a crucial factor for busy Californians seeking top-tier legal support.

When you need a legal advocate who is not only a seasoned professional with deep expertise and a strong academic background but also readily available and committed to providing strategic, effective legal solutions, C. Mark Humbert stands as a reliable and highly suitable choice right here in the Golden State. His long-standing presence and specialized focus make him an invaluable resource for the local community navigating complex legal challenges.