Our Vision, Mission, Values
About Us
Physician-Led. Results-Driven.
Trusted Nationally.
MHMDAA is a high-reliability consulting firm dedicated to Payor-side clinical integrity. Through physician-led expertise and augmented intelligence, we resolve complex payor-provider disputes and ensure that providers are reimbursed for the care that is provided.
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Lead Testifying Expert
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Founder & CEO
Michael Hill, MD
- UCLA-trained Emergency Physician
- UC Irvine School of Medicine
“In an era of friction between automated Payor denials and provider over-coding, MHMDAA serves as the essential clinical intermediary. Our physician-led framework delivers the defensible evidence required to secure compliance and revenue in 2026.”
- Michael Hill, MD · Founder & CEO, MHMDAA
Chief of Operations
Mary Goodwin, BSN, MHSA
- 25+ Years Healthcare Leadership
- Utilization Review & Case Management
“Operational excellence in healthcare is built through disciplined systems, clinical alignment, and unwavering accountability, and that is the standard we deliver for every client we serve.”
- Mary Goodwin, BSN, MHSA · Chief of Operations, MHMDAA
Our Leadership Team
Meet Our Team Captains
Experienced clinical leaders driving excellence across every service line. Our team captains bring decades of hands-on hospital operations experience to every client engagement.
Jenna Brown
Senior Director of Clinical Review
RN, BSN
Lynnette Carlisle
Team Captain
RN, BSN
Dee Abbaiahvari
Team Captain
RN, BSN, MS
Mindy Geesaman
Team Captain
MSN, RN, CCM
Restoring Clinical Authority
Start a Conversation with Our Experts
Partner with MHMDAA's physician-led team and take the first step towards building denial-resilient, sustainable financial payor operations.