AeroLeads people directory · profile
Greg Callahan Email & Phone Number
Program Leader, Global Infrastructure and Security
at
Philips Healthcare
1 work email found
@philips.com
4 phones found area 415 and 419
LinkedIn matched
✓ Verified August 2026
4 data sources
Profile completeness 100%
Current company
Role
Program Leader, Global Infrastructure and Security
Location
San Francisco, California, United States
Company size
Who is Greg Callahan? Overview
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Quick answer
Greg Callahan is listed as Program Leader, Global Infrastructure and Security at Philips Healthcare, a with 70504 employees, based in San Francisco, California, United States. AeroLeads shows a work email signal at philips.com, phone signal with area code 415, 419, and a matched LinkedIn profile for Greg Callahan.
Greg Callahan previously worked as Program Leader, Global Infrastructure & Security at Philips Healthcare and CTO at Planet Net. Greg Callahan holds B.S., Cognitive Science from University Of California, San Diego.
Company email context
Email format at Philips Healthcare
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{first}.{last}@philips.com
89% confidence
AeroLeads found 1 current-domain work email signal for Greg Callahan. Compare company email patterns before reaching out.
Profile bio
About Greg Callahan
An adaptive and insightful senior cross-functional and business technology leader. Skilled in establishing and achieving strategic and tactical objectives and maximizing ROI through analysis, team building, solutions development, and change management.Business Development and Management: Owned, operated and sold two self‐sustaining IT solutions development and business critical 24x7 IT services companies from 1996‐2009. Developed and managed organizational structure, business plans, market strategy, product portfolios, finances, human resources, and vendor relationships. Hired and managed engaged and satisfied employees and contractors.Program Development, Program Management, Project Management: Builds and leads fit-to-purpose high-performance cross‐functional programs and teams. Understands, tracks, balances and delivers results consistently amongst complex combinations of business objectives, priorities, resources, timelines, budgets, technologies. Strategic planning and oversight of multiple simultaneous, interdependent projects. Technical Expertise: 22‐year IT professional in business, academic, and healthcare environments. Broad technical understanding and experience managing all layers of business‐critical IT systems and commercial IT services. Skilled in maximizing long-term value and return on technology investments. Multiple ITIL v3 certifications.Process Development and Implementation: Experienced with analysis, architecture, authoring, integrating, and improving efficient, robust and scalable business processes.Specialties:Program ManagementIT StrategyBusiness ManagementCross-Functional LeadershipProduct DevelopmentStrategic Business Analysis & PlanningChange ManagementProblem AnalysisProcess ArchitectureProcess Development & ImplementationCross-Functional Project ManagementRelease Control & TransitionIT Solutions DevelopmentIT Performance & ScalabilityIT Availability, Continuity, & Disaster RecoveryITILDIACAPDIN-PACS
Listed skills include Program Management, Cross Functional Team Leadership, It Strategy, Project Management, and 30 others.
Current workplace
Greg Callahan's current company
Company context helps verify the profile and gives searchers a useful next step.
Philips Healthcare
5 roles
Greg Callahan work experience
A career timeline built from the work history available for this profile.
Program Leader, Global Infrastructure & Security
Head of the Cross-Functional Global Infrastructure Program which manages IT solutions development, release control, installed base maintenance, and related processes.
Cto
Planet Net
Mar 1998 - Jan 2007
Owner
Intuitive Engineering
Jun 1995 - Feb 2001
Network & Systems Administrator
Oct 1990 - Jun 1995
Team & coworkers
Colleagues at Philips Healthcare
Other employees you can reach at philips.com. View company contacts for 70504 employees →
WS
Wes Stokes
Colleague at Philips HealthcareGreater Orlando, United States
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AC
Arnab Chowdhury
Colleague at Philips HealthcareKolkata, West Bengal, India
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BC
Brian Capion
Colleague at Philips HealthcareOdense, Region Of Southern Denmark, Denmark
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JC
Julian Chazeta García
Colleague at Philips HealthcareMadrid, Community Of Madrid, Spain
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MP
Madhusudhan Pulimi
Colleague at Philips HealthcareSri Potti Sriramulu Nellore, Andhra Pradesh, India
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NP
Nuel Paguyo
Colleague at Philips HealthcarePortland, Oregon, United States
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AA
Alan Aicken
Colleague at Philips HealthcareEindhoven, North Brabant, Netherlands
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PA
Prateek Amlathe
Colleague at Philips HealthcareChennai, Tamil Nadu, India
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MJ
Maria J Ruiz
Colleague at Philips HealthcareNashville Metropolitan Area, United States
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PO
Paul O'Donovan
Colleague at Philips HealthcareIreland
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Wes Stokes
Colleague at Philips HealthcareGreater Orlando, United States
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AC
Arnab Chowdhury
Colleague at Philips HealthcareKolkata, West Bengal, India
View →
BC
Brian Capion
Colleague at Philips HealthcareOdense, Region Of Southern Denmark, Denmark
View →
JC
Julian Chazeta García
Colleague at Philips HealthcareMadrid, Community Of Madrid, Spain
View →
MP
Madhusudhan Pulimi
Colleague at Philips HealthcareSri Potti Sriramulu Nellore, Andhra Pradesh, India
View →
NP
Nuel Paguyo
Colleague at Philips HealthcarePortland, Oregon, United States
View →
AA
Alan Aicken
Colleague at Philips HealthcareEindhoven, North Brabant, Netherlands
View →
PA
Prateek Amlathe
Colleague at Philips HealthcareChennai, Tamil Nadu, India
View →
MJ
Maria J Ruiz
Colleague at Philips HealthcareNashville Metropolitan Area, United States
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PO
Paul O'Donovan
Colleague at Philips HealthcareIreland
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1 education record
Greg Callahan education
FAQ
Frequently asked questions about Greg Callahan
Quick answers generated from the profile data available on this page.
What company does Greg Callahan work for?
Greg Callahan works for Philips Healthcare.
What is Greg Callahan's role at Philips Healthcare?
Greg Callahan is listed as Program Leader, Global Infrastructure and Security at Philips Healthcare.
What is Greg Callahan's email address?
AeroLeads has found 1 work email signal at @philips.com for Greg Callahan at Philips Healthcare.
What is Greg Callahan's phone number?
AeroLeads has found 4 phone signal(s) with area code 415, 419 for Greg Callahan at Philips Healthcare.
Where is Greg Callahan based?
Greg Callahan is based in San Francisco, California, United States while working with Philips Healthcare.
What companies has Greg Callahan worked for?
Greg Callahan has worked for Philips Healthcare, Planet Net, Intuitive Engineering, and Uc San Diego.
Who are Greg Callahan's colleagues at Philips Healthcare?
Greg Callahan's colleagues at Philips Healthcare include Wes Stokes, Arnab Chowdhury, Brian Capion, Julian Chazeta García, and Madhusudhan Pulimi.
How can I contact Greg Callahan?
You can use AeroLeads to view verified contact signals for Greg Callahan at Philips Healthcare, including work email, phone, and LinkedIn data when available.
What schools did Greg Callahan attend?
Greg Callahan holds B.S., Cognitive Science from University Of California, San Diego.
What skills is Greg Callahan known for?
Greg Callahan is listed with skills including Program Management, Cross Functional Team Leadership, It Strategy, Project Management, Product Management, Strategy, Itil, and Business Analysis.
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