Atlas
Back to PPM Roll-Ups
Peer Fund / Dealmaker·PPM Roll-Ups

Stephen E. Thorne IV

Founder & CEO at Pacific Dental Services (PDS Health)

Henderson, Nevada

SE
LinkedIn
Why they matter

Founder-CEO who built a ~1,000-practice DSO to scale entirely without PE capital, giving him a rare, structurally informed outside view on the physician-practice-rollup model.

Background

Stephen E. Thorne IV founded Pacific Dental Services in 1994 after managing a struggling dental office for his dentist father, and has built it into one of the largest dental support organizations in the U.S. He holds a BA from UCLA and an MHA from Chapman University, and was instrumental in forming the Association of Dental Support Organizations (ADSO), serving as its founding president. In 2024 he rebranded the company to PDS Health to reflect its expansion into dental-medical integrated care, and relocated headquarters to Henderson, Nevada, near his home.

Notable deals

  • 1994
    Founded Pacific Dental Services in Costa Mesa, CA, growing it into a nationwide dental support organization now backing nearly 1,000 practices
  • 2022
    Launched first-of-its-kind co-located dental-medical joint venture with MemorialCare Health System
  • 2024
    Rebranded Pacific Dental Services to PDS Health and reached the 1,000th supported practice at the company's 30th anniversary
  • 2024
    Received the ADSO Presidential Award for leadership and service to the dental support industry

Call-prep brief

Stephen E. Thorne IV — Founder & CEO, PDS Health

Background: Built Pacific Dental Services from a single struggling office in 1989 into PDS Health, a ~1,000-practice dental/primary-care platform across 25 states with ~12,000 employees. Founding president of the ADSO, the trade body for dental support organizations.

Current focus:

  • Dental-medical integration (Epic-linked EHR, co-located clinics with MemorialCare)
  • Expanding beyond dentistry into primary care under the PDS Health brand (2024 rebrand)
  • Just relocated HQ to Henderson, NV, near his home; building an internal leadership academy (Thorne Center for Excellence)

What he cares about: Founder control and long-term compounding — PDS Health is explicitly founder-owned with no PE investment, a point Thorne has made publicly, citing debt-load and control concerns. He frames growth around clinical quality and "whole-person health," not just unit economics.

Recent moves: 30th-anniversary rebrand to PDS Health (2024), MemorialCare joint venture expanding to 25+ co-located sites, 2024 ADSO Presidential Award, HQ move to Nevada.

Sensitivities: He has been publicly resistant to PE ownership of his own company — approach any capital-related conversation as an industry-observer discussion, not a pitch for his business. He is protective of PDS Health's founder-led culture.

Questions to ask:

  1. What has kept you from taking outside capital into PDS Health, and where do you see that calculus shifting (or not) for DSOs broadly?
  2. How is the dental-medical integration model (MemorialCare JV) changing unit economics versus a pure-play DSO?
  3. Across the DSOs you track through ADSO, which roll-up strategies are working versus overextending on debt?

Outreach draft

Subject
Perspective on DSO roll-up economics
Hi Stephen, I'm reaching out from [Firm]. We're studying the physician/dental practice roll-up model and your 30-year build of PDS Health — done without outside PE capital — stands out as a rare data point in an industry now dominated by sponsor-backed platforms. I'd value 20-30 minutes to hear your view on how DSO economics and consolidation are evolving, particularly around the dental-medical integration work you've been leading with MemorialCare, and what you see other operators getting right or wrong on leverage and growth pacing. Happy to work around your schedule - would a short call in the next couple weeks work? Best, [Placeholder Name]

Linked companies

Sources

Strongest evidencePage title6 public sourcesVerified2026-08-06How the grades work