Tia, MD-Led Platform

Tia is a women's health company founded in 2017 in New York City by Carolyn Witte and Felicity Yost, who set out to build a primary care practice designed specifically around the health needs, scheduling constraints, and medical experiences of women. The founding premise was that conventional primary care was not built for women — appointment times were too short, providers were not trained in women-specific issues, and the fragmented referral system meant patients bounced between OB/GYNs, internists, mental health providers, and dermatologists who rarely coordinated. Tia's model integrates all of these specialties into a single practice with shared records, coordinated care teams, and longer appointment times. Tia operates physical clinics in New York City (multiple locations including SoHo and Flatiron), Los Angeles (Silver Lake, Playa Vista, and other locations), San Francisco, and Phoenix, with ongoing expansion underway in Arizona and plans announced for Chicago, Boston, and Atlanta. The company serves more than 100,000 women across its markets and has published outcome data showing that its comprehensive primary care model produces better results on preventive care metrics than fragmented specialty-only models. Services at Tia span primary care (annual physicals, chronic disease management, lab ordering, referrals), gynecology (well-woman exams, birth control, STI testing, IUD placement and removal, colposcopy), mental health (therapy and medication management through a Talkspace integration launched in 2025), perimenopause and menopause care, fertility planning, skin care, and acupuncture. The breadth of services under one practice is intentional: Tia's research showed that women who had all their care in one place had higher rates of preventive screening completion, fewer care gaps, and better chronic disease management than women who managed multiple specialist relationships independently. In 2025, Tia launched a longevity service line targeting women over 40, reflecting the growing clinical understanding that the perimenopausal decade is a critical window for cardiovascular, bone, and metabolic health interventions. The company also deployed Nabla's AI assistant to support clinical documentation, allowing providers to spend more appointment time with patients rather than administrative tasks. Virtual care is available in California, New York, New Jersey, Connecticut, Massachusetts, and Arizona for patients who cannot access or prefer not to use in-person services. Tia accepts insurance for all billable services, which, combined with the comprehensive care model, makes it one of the most clinically complete and cost-effective options for women in the markets it serves. The founding premise was that conventional primary care was not built for women — appointment times were too short, providers were not trained in women-specific issues, and the fragmented referral system meant patients bounced between OB/GYNs, internists, mental health providers, and dermatologists who rarely coordinated. Tia's model integrates all of these specialties into a single practice with shared records, coordinated care teams, and longer appointment times. Tia operates physical clinics in New York City (multiple locations including SoHo and Flatiron), Los Angeles (Silver Lake, Playa Vista, and other locations), San Francisco, and Phoenix, with ongoing expansion underway in Arizona and plans announced for Chicago, Boston, and Atlanta. The company serves more than 100,000 women across its markets and has published outcome data showing that its comprehensive primary care model produces better results on preventive care metrics than fragmented specialty-only models. Services at Tia span primary care (annual physicals, chronic disease management, lab ordering, referrals), gynecology (well-woman exams, birth control, STI testing, IUD placement and removal, colposcopy), mental health (therapy and medication management through a Talkspace integration launched in 2025), perimenopause and menopause care, fertility planning, skin care, and acupuncture. The breadth of services under one practice is intentional: Tia's research showed that women who had all their care in one place had higher rates of preventive screening completion, fewer care gaps, and better chronic disease management than women who managed multiple specialist relationships independently. In 2025, Tia launched a longevity service line targeting women over 40, reflecting the growing clinical understanding that the perimenopausal decade is a critical window for cardiovascular, bone, and metabolic health interventions. The company also deployed Nabla's AI assistant to support clinical documentation, allowing providers to spend more appointment time with patients rather than administrative tasks. Virtual care is available in California, New York, New Jersey, Connecticut, Massachusetts, and Arizona for patients who cannot access or prefer not to use in-person services. Tia accepts insurance for all billable services, which, combined with the comprehensive care model, makes it one of the most clinically complete and cost-effective options for women in the markets it serves.