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Executive Team

Dawn M. Pinnock
Dawn M. Pinnock

Dawn M. Pinnock

Commissioner

Dawn M. Pinnock is the Commissioner for the NYC Department of Citywide Administrative Services (DCAS). As a proud native New Yorker, Dawn M. Pinnock is a transformative leader with more than two decades of experience at some of New York City’s largest municipal agencies. Prior to serving as Commissioner, Pinnock served as the Executive Deputy Commissioner for People Operations and Risk Management at DCAS, where she led the agency’s people-centered functions, including Administration, Citywide Equity and Inclusion, Citywide Human Capital, and Internal Audit. In her role, she maintained citywide oversight of services provided to the human resources, equal employment, and diversity and inclusion departments serving at every agency. Pinnock has also served as the Deputy Commissioner for Human Capital, overseeing all aspects of civil service administration and human resources operations. During her tenure at DCAS, she led teams that developed both the City’s remote work policy and the return to work policy, launched mandatory sexual harassment training for over 360,000 City employees, and made the City’s civil service process more accessible to current and potential City employees.

Prior to joining DCAS, Pinnock served as the Vice President of Human Resources at New York City Transit and as the Director of Human Resources at the New York City Housing Authority (NYCHA). She holds a Master of Science in Urban Policy Analysis and Management from The New School for Social Research and a Bachelor of Business Administration from Baruch College. She is a Certified Human Resource Professional, and a member of both the Association for Talent Development and the Society of Human Resource Management.

Carmine Rivetti
Carmine Rivetti

Carmine Rivetti

Chief of Staff

Carmine Rivetti is the Chief of Staff for the Department of Citywide Administrative Services. Prior to his time as Chief of Staff, he served as Executive Director of External Affairs, overseeing communications and intergovernmental affairs. Rivetti came to the agency in July of 2014 as the Deputy Chief of Staff.

Prior to joining DCAS, he served as Associate Vice President of Income for the United Way of New York City overseeing social service related initiatives, which include financial management, food stamps outreach, hunger prevention, and the Emergency Food and Shelter Program.

Rivetti has spent more than 20 years in the public sector starting his career as a legislative financial analyst at the New York City Council. He continued his career as a government relations specialist with the American Cancer Society and NYCHA and would later serve as Assistant Commissioner for Government and Community Relations at the Department of Homeless Services.

Carmine holds a Master's in social work from Columbia University and a Bachelor of Arts from Drew University.


Adam Buchanan
Adam Buchanan

Adam Buchanan

Acting Deputy Commissioner, DCAS Office of Citywide Procurement

Adam Buchanan is the Acting Deputy Commissioner for the DCAS Office of Citywide Procurement (OCP), the chief procurement agent for the City of New York. OCP is responsible for purchasing goods and services on behalf of all City agencies. It solicits and awards a wide variety of contracts and manages a portfolio of approximately 1,000 multi-year Citywide requirements contracts, representing $1.5 billion in annual encumbrances across 100 City agencies. Buchanan previously served as a Staff Attorney at the Mayor's Office of Contract Services as well as Associate General Counsel and, later, Deputy Chief Contracting Officer at the NYC Department of Transportation. Prior to serving as Acting Deputy Commissioner of the Office of Citywide Procurement, Buchanan served as its Chief Contracting Officer and Assistant Commissioner.

Buchanan earned his undergraduate degree in legal studies from the University of Massachusetts, Amherst, his juris doctor from New York Law School, and is licensed to practice law in the State of New York.

Sandford Cohen
Sanford Cohen

Sanford M. Cohen

General Counsel

Sanford Cohen is the DCAS General Counsel. He manages and supervises the Department’s Office of General Counsel in its handling of legal matters involving citywide personnel policies, the procurement of goods and services for city agencies, and the City’s real estate holdings and transactions, as well as the activities of the Citywide Office of Safety and Health. He entered service at DCAS as Deputy General Counsel for Human Capital in 2014 and served as Acting General Counsel in 2020.

Before joining DCAS, Mr. Cohen was the Executive Deputy General Counsel for the City’s Department of Consumer Affairs from 2008 to 2014, where his responsibilities included the oversight of the Department’s personnel policies and practices as well as the management of the legal department’s enforcement of consumer protection laws. He was the Deputy Director of the Domestic Legal Program at the Center for Reproductive Rights from 2005 to 2007 where he directed the Center’s litigation in courts across the United States. He was an Assistant United States Attorney and the Chief of Civil Rights Litigation in the Eastern District of New York from 1995 to 2005, where he handled criminal civil rights prosecutions and civil litigation enforcing federal civil rights laws. From 1983 to 1995, he served as an Assistant Attorney General in the Civil Rights Bureau of the New York Attorney General’s Office. He was Bureau Chief from 1991 until 1995 and Deputy Bureau Chief from 1986 to 1991. He began his legal career as a staff attorney at Bedford-Stuyvesant Community Legal Services Corporation in 1979. .

Cohen is a graduate of Columbia College of Columbia University. He received Juris Doctor with honors from Rutgers-Newark School of Law. He is admitted to practice in the State of New York, all of the United States District Courts in New York, the United States Courts of Appeals for the Second, Fourth, Fifth, Sixth, Ninth, Tenth and Eleventh Circuits and the United States Supreme Court.


Barbara Dannenberg Deputy Commissioner Human Capital
Barbara Dannenberg

Barbara Dannenberg

Deputy Commissioner, Human Capital

Barbara Dannenberg is the Deputy Commissioner for Human Capital (HC), which is responsible for maintaining the Civil Service system for the City of New York. HC recruits and identifies the best-qualified candidates for City employment, administers Civil Service exams for positions and provides City agencies with a qualified pool of candidates to fill their hiring needs in a manner consistent with the State Constitution, Civil Service Law and laws governing equal employment opportunity. In addition, HC develops and interprets Citywide policies and programs, develops and conducts professional development and employee training programs, and implements the City’s provisional reduction plan, among other critical functions.


Prior to serving as Deputy Commissioner, Dannenberg served as the Assistant Commissioner for Examinations, the Director of Classification and Compensation, and in various roles within Human Capital to support the City’s administration of the Civil Service process. She has amassed nearly 20 years of public sector experience and has shared her technical expertise throughout her tenure to support City agencies and Citywide operations. She has an unparalleled knowledge of the City’s title structure, and has successfully created pipeline and promotion pathways to City careers.


Anthony J. Fiore
Anthony J. Fiore

Anthony J. Fiore

Deputy Commissioner, Energy Management and Chief Decarbonization Officer

As Chief Decarbonization Officer for the City of New York, Anthony Fiore leads the team responsible for demand management and purchasing energy for all City agencies, cultural institutions, hospitals, schools, and universities. He is responsible for managing a $700 million annual energy supply budget, and a $2.7 billion 10-year capital budget to develop and implement programs to achieve the City’s One City: Built to Last strategy of an 80 percent reduction of greenhouse gas emissions by 2050.

Prior to his role at DCAS, Anthony served as the City’s Director of Energy Regulatory Affairs acting as the primary energy policy advocate for the City before numerous State and federal agencies, and providing analysis on a wide range of regulatory and legislative matters related to energy.

Anthony received a Bachelor’s in Science from Binghamton University and a Master’s in Public Health from the Mailman School of Public Health, Columbia University.


Keith Todd Kerman
Keith Todd Kerman

Keith Todd Kerman

Deputy Commissioner, Fleet Management and Chief Fleet Officer

Keith Todd Kerman is the Deputy Commissioner of Fleet Management and the City of New York's first Chief Fleet Officer. In that role, he is responsible for the largest municipal fleet in the United States, with 30,000 vehicles, 80,000 fleet operators, and more than 2,000 employees engaged in fleet operations. Kerman manages inter-agency shared fleet services in partnership with major fleet agencies, including the Police, Fire, Sanitation, and Transportation departments.

Kerman leads implementation of the NYC Clean Fleet initiative to reduce greenhouse gas emissions 50 percent by 2025. The City has one of the greenest fleets in the nation with nearly 20,000 vehicles operating on some type of alternative fuel, including New York state's largest electric fleet and charging network. Kerman is also a leader in fleet safety as part of the City of New York's Vision Zero initiative to eliminate traffic fatalities.

Kerman has worked in public service for nearly three decades. Prior to his role at DCAS, he served more than 17 years with New York City Department of Parks and Recreation, most recently as Assistant Commissioner for Citywide Operations. He is a graduate of Harvard College.


Silvia Montalban
Silvia Montalban

Silvia Montalban

Chief Citywide Equity and Inclusion Officer

Silvia Montalban is the Chief Citywide Equity and Inclusion Officer and oversees Citywide Equity and Inclusion (CEI). She is responsible for fostering the City of New York’s emergence as an innovative and global leader in equitable, diverse and inclusive employment practices. CEI is responsible for ensuring proper and consistent implementation of the City’s EEO Policy and other related policies and procedures and provides best practice guidance impacting the workforce across over 80 City government agencies.

Montalban is an attorney experienced in institutional compliance with non-discrimination laws and policies, employment law and employee relations matters in both city government and higher education. Prior to her role at DCAS, Silvia worked 10 years at the City University of New York's (CUNY) John Jay College of Criminal Justice, where she served as the head of the Compliance and Diversity department, addressing matters impacting both the employee and student populations. She handled investigations under non-discrimination policies and laws, including Title IX, and led policy training programs for employees and students. During her tenure at John Jay College, she also served as the secondary head of the Office of the General Counsel for several years.

Her prior City government service includes: Director of the Employment Law Unit at the NYC Administration for Children's Services (ACS); and as an attorney with the NYC Department of Homeless Services monitoring emergency assistance petitions, representing the agency in appeal hearings and labor proceedings, advising the Family Services division in the legal compliance of programmatic initiatives, and later serving as the agency's Personnel Director.

Montalban is a graduate of Columbia College of Columbia University and earned her Juris Doctor degree from Hofstra University School of Law.


Shameka Overton

Deputy Commissioner, Administration

Shameka Overton is the Deputy Commissioner of Administration. In this role, Overton is responsible for internal support services to the agency’s 2,300 employees. These services include Human Resources, Payroll and Timekeeping, Labor Relations, Disciplinary Proceedings, Employee Relations, and Transportation Services. Overton also oversees the City Store, the Official Store of the City of New York, and the DCAS Police force, which provides law enforcement and security services for employees and visitors to DCAS-managed facilities.

She began her career in City government career more than 20 years ago as a college intern. She holds a degree in Business Administration and is a Senior Professional in Human Resources.


Nitin Patel
Nitin Patel

Nitin Patel

Deputy Commissioner, Information Technology and Chief Information Officer

Nitin Patel is the Deputy Commissioner of Information Technology and DCAS's Chief Information Officer. In that role, he is responsible for providing technological guidance for the agency and for establishing and directing the strategic and tactical goals, policies, and procedures for the Information Technology Department. He collaborates with the agency's commissioner and consults with all of the agency's lines of service to present new approaches and discuss system changes.

Prior to joining DCAS, Patel worked at New York City’s Financial Information Services Agency (FISA), implementing Citywide Human Resources, payroll, and timekeeping systems. Previously, he worked in the consulting, media, and healthcare industries and has more than 22 years of experience working as an IT executive linking business strategies and technology solutions.

Patel has an electrical engineering degree from the Indian Institute of Technology.


Laura Ringelheim
Laura Ringelheim

Laura Ringelheim

Deputy Commissioner, Real Estate Services

Laura Ringelheim is the Deputy Commissioner for Real Estate Services responsible for overseeing and providing for the real estate needs of New York City agencies. This includes accommodating space in City-owned buildings as well as leasing from private landlords when necessary. Her line of service also supervises the rental of City buildings for use by private citizens and organizations.

Ringelheim came to DCAS in 2014 and served as Special Counsel to the DCAS Commissioner, providing legal counsel, analysis, and oversight on agency policy and operations.

Before joining DCAS, Ringelheim served as Deputy General Counsel at the Mayor’s Office of Contract Services (MOCS), the City’s lead office for contracting and procurement.

Prior to working at MOCS, Ringelheim served as the General Counsel for the New York City Commission to the United Nations, Consular Corps, and Protocol (subsequently renamed the Mayor’s Office of International Affairs). As General Counsel, she served as a key legal advisor for matters involving the City’s role as host to the United Nations and 192 foreign government offices.

Ringelheim also served as an Assistant Corporation Counsel at the New York City Law Department for eight years handling both affirmative and defensive litigation in the Real Estate and Tort Litigation Divisions.

Ringelheim received her undergraduate degree from George Washington University and her law degree from Brooklyn Law School. She is admitted to practice law in New York and before the courts of the Southern and Eastern Districts.


Joseph Wagner
Joseph Wagner

Joseph Wagner

Assistant Commissioner/Chief Engineer, Construction and Technical Services

Joseph Wagner is Assistant Commissioner/Chief Engineer responsible for DCAS's Construction and Technical Services (CTS). He coordinates all phases of construction for DCAS facilities, is responsible for the maintenance and repair of nearly 600 vertical lifts, and for the inspections, condition assessments, recommendations, and repairs of approximately 1,800 DCAS properties, including waterfront properties within the five boroughs.

Wagner is a professional engineer with more than 40 years of experience in structural engineering. His background is in structural design, construction, field inspections of high rise buildings, and the maintenance and rehabilitation of existing buildings.

Prior to joining the City of New York in 1988, he served as Vice President and Partner of Ramp Engineering Consultants, where he handled multi-million-dollar projects, from design through construction, for both the public and private sectors.

He is registered as a professional engineer in New York, New Jersey, Florida, and North Carolina. He also holds certification as a structural engineer from the Structural Engineering Certification Board, a certification as a special inspector of threshold buildings in the state of Florida, special inspector for the City of New York, and holds a New York City contractor’s license. He has a Bachelor of Science degree in Civil Engineering from Fairleigh Dickinson University.