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Larry Tan Email & Phone Number

Service Desk Manager | HDI, ITIL 4, M.S. in IS at Oak Street Health
Location: Chicago, Illinois, United States 9 work roles 2 schools
1 work email found @sdipresence.com 3 phones found area 630 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 3 phones

Work email l****@sdipresence.com
Direct phone (630) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Service Desk Manager | HDI, ITIL 4, M.S. in IS
Location
Chicago, Illinois, United States
Company size

Who is Larry Tan? Overview

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Quick answer

Larry Tan is listed as Service Desk Manager | HDI, ITIL 4, M.S. in IS at Oak Street Health, a company with 1325 employees, based in Chicago, Illinois, United States. AeroLeads shows a work email signal at sdipresence.com, phone signal with area code 630, and a matched LinkedIn profile for Larry Tan.

Larry Tan previously worked as Service Desk Manager at Oak Street Health and Director Contact Center Operations at Sdi Presence. Larry Tan holds M.S., Information Systems from Depaul University.

Company email context

Email format at Oak Street Health

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{first_initial}{last}@sdipresence.com
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AeroLeads found 1 current-domain work email signal for Larry Tan. Compare company email patterns before reaching out.

Profile bio

About Larry Tan

With over 25 years of experience in contact center operations, management and customer experience, I am a versatile and proven leader who delivers outstanding customer service, operational efficiency, and strategic growth. I was most recently the Director of Contact Center Operations at SDI Presence, a leading IT managed services provider, where I oversaw the accountability, expansion, and innovation of the SDI IT Innovation Hub Contact Center.I have successfully developed and led the contact center to be a mid-size national IT managed shared services provider, balancing growth with customer satisfaction, account expansion, talent development, and scheduling. I have also migrated and implemented new systems and processes that reduced operating costs by up to 40%, efficiently supported an increase in overall contact volume by over 30%, and improved SLA compliance and reporting. As a HDI certified professional, I am passionate about creating scalable and customer-centric service desk infrastructures that support the needs and goals of diverse clients and stakeholders.

Listed skills include Itil, Software Documentation, Process Improvement, It Management, and 24 others.

Current workplace

Larry Tan's current company

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Oak Street Health
Oak Street Health
Service Desk Manager | HDI, ITIL 4, M.S. in IS
chicago, illinois, united states
Employees
1325
AeroLeads page
9 roles · 28 years

Larry Tan work experience

A career timeline built from the work history available for this profile.

Service Desk Manager

Current

Chicago, Illinois, United States

Implement and build out 24x7 Service Desk operations. Lead a team responsible for delivering exceptional customer service. Collaborate with various stakeholders, including application owners, management, vendors, and teammates, to ensure effective support for service users. Contribute to projects aimed at improving efficiency and enhancing the end-user.

Oct 2023 - Present

Director Contact Center Operations

Chicago, IL

  • Developed the SDI IT Innovation Hub Contact Center to be a mid-size national IT Managed Shared Services Provider, balancing growth with customer satisfaction, account expansion, talent development, scheduling, and.
  • Oversaw accountability for 48,000 supported users, over 114,000 customer calls per year and over 120,000 customer contacts per year
  • Onboarded 2 new customers to grow and take on increase in call volume from 6800 to 9500 calls per month
  • Reduced operating costs by 15%
  • Migrated from PanTerra to Amazon Connect VOIP system for a savings of 40%
  • Migrated 3rd Party provider inhouse for a savings of 15%
Apr 2022 - Aug 2023

Service Desk Senior Manager

Chicago, Illinois, United States

  • Built, led, motivated and managed the Service Desk to deliver outstanding technical and non-technical support in a manner that is both timely and satisfying for the firm’s largest government account, City of Chicago.
  • Responsible for SLA compliance
  • Decreased average call time from 11 minutes to 6 minutes
  • Decreased abandoned calls from 2.2% to 0.6%
  • Increased First Call Resolution from 75% to 95%
  • Maintained a customer satisfaction score of 4.8
Mar 2019 - Apr 2022

Customer Service Delivery Manager, Service Desk And Walk-Up Support Desks

Chicago, IL

  • Managed and led the IT Services Service Desk and Walk-up Support Desks and enabled them to deliver an efficient customer support service in line with ITIL best practice guidelines and a delightful customer experience.
  • Managed and scheduled Service Desk analysts for support of a user base of approximately 15,000 averaging 1,800 calls and 2,000 tickets per month
  • Designed and delivered SLA compliance reporting and Continuous Service Improvement metrics
Sep 2014 - Mar 2019

Service Delivery Specialist

Chicago, IL

Oversaw and performed all ITIL Incident, Problem Management and Metrics procedures and processes for Treasury Securities & Services (TSS) of $97B company.

Sep 2012 - Sep 2014

Senior Service Delivery Manager

Naperville, IL

  • Headed enterprise-wide effectiveness and efficiency for IT Service Desk, Desktop Services, Data Center Operations and IT Asset Management group for $8.6B company. Controlled and administered two of the largest key O.E..
  • Facilitated and scheduled Service Desk analysts for support of a user base of approximately 2,000 users averaging 1,200 calls per month
  • Reduced payroll budget $500K, by establishing a Strategic Direction plan, flattening organization, creating flexible team with increased skill/knowledge base in key technologies resulting in increased service levels.
2007 - 2012 ~5 yrs

Computer Sciences Corporation (Csc) Service Delivery Manager - Aon Account

Chicago, IL

Managed staff of technicians providing Executive Desktop Support and Voice Services at Aon Offices nationwide. Managed delivery of all services in support of IT outsourcing contract with BancTec covering Aon Midwest Region offices, Executive Support users, Corporate office, Aon Consulting Worldwide and Aon Services Corporation business units (10,000+.

2005 - 2007 ~2 yrs

Desktop And Executive Support Manager

Aon

Chicago, IL

Managed delivery of all IT services covering Executive Support, Aon Services Corporation, Aon Consulting Worldwide, Aon Reinsurance and Aon Risk Services (10,000+ users) for $10B company. Owner of the National Desktop Standards & Support Procedures Community of Practice. Led the Standard Operating Procedures Resources group responsible for providing all.

1998 - 2005 ~7 yrs

Client Services Specialist

Iri
Jun 1996 - Jun 1998
Team & coworkers

Colleagues at Oak Street Health

Other employees you can reach at oakstreethealth.com. View company contacts for 1325 employees →

2 education records

Larry Tan education

FAQ

Frequently asked questions about Larry Tan

Quick answers generated from the profile data available on this page.

What company does Larry Tan work for?

Larry Tan works for Oak Street Health.

What is Larry Tan's role at Oak Street Health?

Larry Tan is listed as Service Desk Manager | HDI, ITIL 4, M.S. in IS at Oak Street Health.

What is Larry Tan's email address?

AeroLeads has found 1 work email signal at @sdipresence.com for Larry Tan at Oak Street Health.

What is Larry Tan's phone number?

AeroLeads has found 3 phone signal(s) with area code 630 for Larry Tan at Oak Street Health.

Where is Larry Tan based?

Larry Tan is based in Chicago, Illinois, United States while working with Oak Street Health.

What companies has Larry Tan worked for?

Larry Tan has worked for Oak Street Health, Sdi Presence, University Of Chicago, Jpmorgan Chase & Co., and Nicor Gas.

Who are Larry Tan's colleagues at Oak Street Health?

Larry Tan's colleagues at Oak Street Health include Cynthia Spencer, Dione Mccollum, Casey Pabst, Megan Ritchie, and Araceli Alamo.

How can I contact Larry Tan?

You can use AeroLeads to view verified contact signals for Larry Tan at Oak Street Health, including work email, phone, and LinkedIn data when available.

What schools did Larry Tan attend?

Larry Tan holds M.S., Information Systems from Depaul University.

What skills is Larry Tan known for?

Larry Tan is listed with skills including Itil, Software Documentation, Process Improvement, It Management, Management, It Service Management, Ms Project, and Data Center.

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