The New York Times says the office issued the remarks in support of a lawsuit filed against the city by disability rights groups.
Yellow cab owners aren't required to buy wheel-chair-accessible vehicles. Only 232 of the city's 13,000 taxis can accommodate wheelchairs.
The city recently selected a Nissan minivan with no wheel-chair access to replace its entire fleet over the next 10 years.
The Taxi and Limousine Commission David Yassky said the lawsuit is misguided. He said a dispatch system will provide service for all New Yorkers with disabilities in about six months.