Marissa Olumoya

Marissa Olumoya serves as Head of Administration | Chief of Staff to the CEO at Greater Good Health. Greater Good Health operates in the hospital & health care sector with approximately 95.0 employees. The company is headquartered in Los Angeles, California. Greater Good Health generates annual revenue of 4100000.0. To date, Greater Good Health has raised 33000000.0 in total funding, with the most recent round being Series A.

Industry & Role Insights

• • MessageCEO tracks 6,447 executives in the hospital & health care sector.
• • 13,743 executive contacts are available in California.
• • Our database includes 201,468 c suite-level executives.

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hospitals & health care senior healthcare primary care value-based care holistic health chronic condition management preventive care care coordination health outcomes medicare support patient experience health disparities senior-focused care clinical programs patient engagement partner collaboration health plan partnerships community wellness telehealth services in-home care medication management healthcare access community events wellness programs patient liaisons integrated care clinical expertise patient-centric approach access to care senior health providers nurse practitioners quality improvement programs risk adjustment 30-day readmission reduction outcomes improvement health equity care transformation cost reduction patient satisfaction personalized care education for caregivers social determinants of health aging population healthcare systems provider recruitment advanced analytics support services healthcare innovation care models care team collaboration community engagement hospital & health care

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Donna Rey Executive Director & CEO at 1199SEIU National Benefit Fund

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Amin Shivji Chief Executive Officer at 123Dentist

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Jeff Leger Chief Executive Officer (incoming) at 123Dentist

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Chandan Advani Co - Chief Executive Officer at 123Dentist

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Stuart Tait Chief Executive Officer at 13SICK National Home Doctor

Outreach Guidance — hospital & health care Sector

Executives like Marissa Olumoya in the hospital & health care sector receive targeted outreach from sales teams, recruiters, and investors. To stand out, personalize your message with industry-specific context and a clear, specific value proposition relevant to their role at Greater Good Health.

Marissa Olumoya's Position in the MessageCEO Database

• •Marissa Olumoya is 1 of 1 verified executive contact we track at Greater Good Health.
• •6,187 verified executive contacts in hospital & health care are in the MessageCEO database.
• •12,901 verified executive contacts in California are in the database.
• •21 verified contacts work at hospital & health care companies in the 95.0 employee range (same size as Greater Good Health).

Executive contact data compiled from public business filings, LinkedIn public profiles, company press materials, and verified outbound email testing. We do not publish personal addresses or sensitive identifiers. Methodology & sources · Removal requests handled at /remove-info · Updated July 2026.

How do I reach Marissa Olumoya directly?

Marissa Olumoya's verified email address is available to MessageCEO Pro subscribers. They currently serve as Head of Administration | Chief of Staff to the CEO at Greater Good Health. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Marissa Olumoya work for?

Marissa Olumoya is Head of Administration | Chief of Staff to the CEO at Greater Good Health, a company in the hospital & health care sector with 95.0 employees. The company is based in Los Angeles, California.

Can I pitch or sell to Marissa Olumoya?

As Head of Administration | Chief of Staff to the CEO at Greater Good Health, Marissa Olumoya is a key decision-maker in the hospital & health care sector. MessageCEO Pro gives you verified email to reach Marissa Olumoya directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Marissa Olumoya in?

Marissa Olumoya works in the hospital & health care industry as Head of Administration | Chief of Staff to the CEO at Greater Good Health. MessageCEO provides verified contact information for executives across all major industries.

Is Marissa Olumoya's contact information verified?

Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. Marissa Olumoya's profile is kept up-to-date with the latest available information.

Last updated: July 28, 2026