OPINION AND ORDER Plaintiff Christopher Vargas brings this discrimination suit against his former employer, St. Luke’s-Roosevelt Hospital Center; its parent hospital system, Mount Sinai Health Systems, Inc.; and his former supervisor, Ricardo Mendoza. Vargas alleges discrimination in violation of the Americans with Disabilities Act, 42 U.S.C. §§12101-12213 (“ADA”); the New York State Human Rights Law, N.Y. Exec. Law §§290-297 (“NYSHRL”); and the New York City Human Rights Law, N.Y. City Admin. Code §§8-101-131 (“NYCHRL”). Vargas also brings claims of retaliation in violation of the NYCHRL and Title VII of the Civil Rights Act of 1964, 42 U.S.C. §2000e-5 (“Title VII”). Presently before the Court is Defendants’ motion for summary judgment.1 For the reasons that follow, Defendants’ motion is granted with respect to Plaintiff’s federal claims and the non-federal claims are dismissed without prejudice. I. Background The following facts are undisputed except where otherwise noted.2 A. Vargas’s Employment at the Hospital Plaintiff Christopher Vargas was hired as a part-time emergency medical technician (“EMT”) at the St. Luke’s-Roosevelt Hospital Center (the “Hospital”) in June 2014. (CV Tr. 7, 14). Maximo Sierra — a paramedic at the hospital, who is also the ex-husband of Vargas’s sister — provided Vargas’s resume to the Hospital. (MS Tr. 6, 15, 16). Specifically, Sierra sent Vargas’s resume to Ricardo Mendoza, who is the Emergency Medical Services (“EMS”) operations manager at the hospital. (RM Tr. 7). After Vargas began working at the Hospital, it was discovered that he was not permitted to work in the New York City 911 system because he had previously been terminated from employment with the New York City Fire Department as a result of an off-duty arrest. (CV Tr. 15, 17-18; RM Tr. 14.) Mendoza informed Vargas that he could resign and reapply once he was cleared to work in the New York City 911 system. (RM Tr. 15.) Vargas resigned. (CV Tr. 17.) After being cleared to work within the 911 system, Vargas reapplied, and was rehired, for a part-time EMT position at the Hospital. (CV Tr. 18-19.) While employed, Vargas was a member of the 1199 SEIU United Healthcare Workers East Union (the “Union”). (CV Tr. 35.) As a part-time employee, Vargas was required to serve a four-month probationary period. (CV Tr. 35.) However, Mendoza, his supervisor, mistakenly believed it was a three-month probationary period. (RM Tr. 17.) This probationary period is intended to determine whether the new employee should continue to work at the hospital. (SL Tr. 17-18.) Under the collective bargaining agreement between the Union and the Hospital, employees can be terminated during the probationary period without just cause. (See Dkt. No. 43-9 (“Collective Bargaining Agreement”).) During the period of Vargas’s employment, EMTs were required to sign a check-out list verifying that all the items listed were on the ambulance. (RM Tr. 23.) On April 22, 2015, Vargas received a warning from Mark Ayuyao, one of his supervisors, for failing to accurately complete the check-out list. (CV Tr. 39-40; id. Ex. 9.) Four days later, on April 26, 2015, Vargas received a second warning from Ayuyao for once again failing to accurately complete the check-out list. (CV Tr. 40; id. Ex. 10.) While working as an EMT, Vargas worked with other experienced EMTs. (RM Tr. 33-34.) Three of these EMTs were Jimmy Henry, Lea Vazquez, and Barbara Karagiannis. (RM Tr. 29-30, 40; id. Ex. 5.) Each of those individuals complained to Mendoza, the EMS Operations Manager, that Vargas was lazy, provided poor patient care, and came to work without his equipment. (RM Tr. 29-30, 40; id. Ex. 5.) Statements made by these EMTs about working with Vargas included “I felt like I was working alone” and “I felt like I had to both drive the ambulance and provide patient care.” (LV Stat. 3; JH Stat. 4.) On one occasion, Vazquez went on a call with Vargas to respond to a patient with a femur fracture. (LV Stat. 4.) Once they located the patient, Vazquez returned to the ambulance to get a stretcher and additional equipment. When Vazquez returned to the patient, she saw Vargas sitting on a stool and using his phone. (Id.) Vazquez and Vargas later went on a second call together. (Id. 6.) Vazquez left the patient to return to the ambulance and get a stretcher. (Id.) Vargas also left the patient and came outside to tell Vazquez that the patient did not look good. (Id.) Vazquez complained to Mendoza about both of these incidents. (Id.
5,7.)3 Vargas also went on a call with EMT Barbara Karagiannis to respond to an elderly man who was bleeding profusely from a lacerated hand. (BK Stat.
