Who we are.

At our core, we're masters of the tumultuous healthcare terrain. 

We're the experts you can count on to offload tasks thereby maximizing your team’s band bandwidth, reducing costs and increasing efficiency.

Meet the team.

We are a team of expert operational minds dedicated to our client’s business as if it were our own.

US Management Team

David Greisman
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David Greisman

President
Debbie Weinfeld
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Debbie Weinfeld

Chief Executive Officer
Maryann Sciallo
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Maryann Sciallo

Chief Operating Officer
Shaya Hirshman
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Shaya Hirshman

Chief Financial Officer
Nicole Barrish
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Nicole Barrish

Director of Operations
Shula Navaro
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Shula Navaro

Chief Nursing Officer
BSN; RN
Miriam Klugman
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Miriam Klugman

Finance Manager
Louie Weinrib
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Louie Weinrib

VP of Client Services
Rose Tyberg
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Rose Tyberg

Client Success Director
Rachel Leiser
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Rachel Leiser

Client Success Manager

Philippines Management Team

Neo Samson
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Neo Samson

Country Manager
Anthony Nillas
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Anthony Nillas

Chief of Staff
Mark Pagarigan
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Mark Pagarigan

Director of Operational Excellence (OPEX)
DJ Narvaez
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DJ Narvaez

Director of Compliance
Arnel Babate
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Arnel Babate

Director of Workforce
Eric Jason Tan
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Eric Jason Tan

Operations Director
Rica Stella Zaragoza
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Rica Stella Zaragoza

Operations Director
Katherine Dolor
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Katherine Dolor

Operations Director
Lawrence Carcamo
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Lawrence Carcamo

Operations Director
Jerome Oxida
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Jerome Oxida

Operations Director
Ryan Sumera
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Ryan Sumera

IT Director

South Africa Management Team

Ryan Gliddon
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Ryan Gliddon

Country Manager
Theresa Terblanche
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Theresa Terblanche

Director of Recruitment
Carmen Harris
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Carmen Harris

Director of HR
Carmin Myburgh
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Carmin Myburgh

Training Manager
Chantelle Uys
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Chantelle Uys

Operations Director
Keshan Govender
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Keshan Govender

IT Manager

Get to know us

The ISTA Story

Born from a vision to revolutionize healthcare support services, ISTA Solutions launched in 2016 to provide cost-effective, high-impact outsourcing tailored to the healthcare sector.
We're not just another outsourcing company. We're a powerhouse that's changing the game. With headquarters in Howell, New Jersey, and a thriving base in the Philippines and South Africa, we're global leaders in our field.
In 2024 we opened our doors in South Africa, with teams in Johannesburg and Cape Town. South Africa is home to a deep pool of university-educated professionals with excellent English, strong healthcare and business experience, and a natural understanding of US clients. Our South African team works US hours, so they are online whenever our clients are. Together with our Philippines operation, it gives every client a broader, more resilient bench of skilled, dependable talent.
At ISTA, we're all about innovation and excellence. Our approach is guided by operational efficiency, performance, quality improvement, and customer satisfaction. We pride ourselves on our commitment to delivering proven best practices and operating models that provide a flawless outsourcing experience for our clients.
Innovation also means putting the right technology in our people's hands. Our teams use AI every day to document processes, automate repetitive steps, and check their work, turning manual workflows that once took dozens of steps into a few clicks, with an experienced specialist verifying every result.

What's next

The future of ISTA is agentic AI with humans in the loop. AI agents will run routine workflows automatically from start to finish, such as pulling reports, reconciling data, routing tasks and updating trackers. They will also continuously analyze your operations to surface trends, risks and recommendations. Our trained specialists stay in the loop at every step, reviewing, approving and handling the judgment calls, so you get the speed and insight of automation with the care and accountability of a dedicated team.
As you get to know us, you'll discover that our success stems from our ability to preserve the core values and unique identity of each business we serve. We work closely with our clients, building partnerships that foster trust, respect, and mutual growth. So, join us on this journey, and let's revolutionize the healthcare outsourcing industry together!

We don't just offer solutions.

We offer a partnership you can count on.

Our brand values are more than just words on paper. They are the foundation of our identity and the backbone of our commitment.

Transparency

Flat-rate gimmick-free pricing. Only pay for when they work.

Commitment

Dedicated for the long-haul, determined to create solutions for long-term success.

Resilience

Here through the ups and downs, ready to tackle anything that gets in the way.