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Leadership Team

Headshot of Acuity Eye Group co-founder Tom Chang MD smiling on a grey background

Tom Chang, MD

Founder & Managing Partner

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Headshot of Acuity Eye Group co-founder Michael Samuel smiling on a grey background

Michael Samuel, MD

Founder & Chief Medical Director

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Executive Leadership Team

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Bill Vaughan

Chief Executive Officer

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Drew Harbur

Chief Legal Officer

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John Hammack

Chief Financial Officer

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Lori Shaw

Chief People Officer

Operations Leadership Team


Hong Nguyen

VP Surgery Centers

Laurie Solari, VP Optical.jpg

Laurie Solari

Vice President, Optical

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Marlana Rivera

Senior Director of Field Operations

Michael Davis, retina specialist at Acuity Eye Group

Michael Davis, MD

Fellowship Educational Director

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Sharon Dyer, Optometrist at West Coast Eye Care and Acuity Eye Group

Sharon Dyer, OD

Director, Optometry

Headshot of Pia Rios

Pia Rios

Executive Director

Directors of Nursing & Surgery Centers


Lydia Moldanado

Nancy Montigny

Nancy Montigny

Susi Khan Director of Nursing

Susi Khan

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Nicole Murphy

Director, Sugical Scheduling

Directors of Field Operations

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Adriana Cruz

Director of Field Operations - San Diego


Cindy Gonzales

Director of Field Operations - LA


Eddie Arreola

Director of Field Operations - Desert & Inland Empire

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Jenny Wang

Director, Field of Operations - Orange County

Leaders of Optical Operations

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Lindsey Bernard

Director, Product & Merchandising

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Rob Carbajal

Director, LA & OC


Van Ho

Director, San Diego, IE, Desert

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Dustin King

Manager, Marketing

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Nicholas Jimenez

Manager, Operations Projects

Human Resources


Alyssa Gomezyin

Director of HR


Claudia Rodriguez

Manager, Payroll

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Michael Griffin

Recruiter, Physician

Information Systems

Angie Berber Director of Call Center

Angie Berber

Director of Contact Center

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Brett Harris

IT Field Manager

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Henry Tran

IT Systems Manager

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Jonathan Cohen

Director of Information Systems and Technology


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Andre Babah

Sr. Director Revenue Cycle

Samantha Hofstad of Acuity Eye Group

Samantha Hofstad Chi

VP of Finance & Accounting

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Tony Ibrahim


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Vladimir Coca


Legal & Compliance

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Allan Kellogg

Associate General Counsel, Real Estate


Carolyn Goldenberg

Associate General Counsel & Director, Compliance

Sheri Alley Credentialing Department of Acuity Eye Group

Sheri Alley

Director, Provider Credentialing

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Terry Marchillo of Acuity Eye Group

Terry Marchillo

Director of Contracts & Business Development

Our clinical leadership team is made up of 18 physicians who mentor our doctors and drive the clinical culture in our practices.