Mark S. Sullivan, M.D. is a physician providing medical care and consultation in Fairfield, CA, specializing in a wide range of specialties. We are dedicated to providing compassionate and evidence-based healthcare.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how Mark S. Sullivan, M.D. broke down on May 1, 2026.
Operator ranks every doctor in Fairfield every night at 2 am HST using reviews, response rate, and local market share.
The numbers tell one story. The photos tell another. Images are indexed from Google Business Profile, the public website, and connected social profiles.
Operator has not indexed public photos for Mark S. Sullivan, M.D. yet. Find your listing to add photo proof of your crew, equipment, and completed work.
Find and add photosReviews pulled nightly from Google, Yelp, and Meta. Aggregate weighted by recency and source authority.
The questions people ask before they call.
Every business on Operator is indexed by default. Claiming is free, takes 60 seconds, and unlocks a Health score based on your real financials plus a nightly brief from Your Operator.