Staff Directory

Welcome to Our Staff Directory

Dan Peterka

Principal / Independent Broker
Representative of the Hoag Senior Services Team 
Phone: (949) 929-0553
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Dan Peterka is a graduate of the University of Notre Dame and retired firefighter/paramedic. He has been in the Medicare industry for over 11 years beginning his career as an agent for Nautilus Health Insurance (an affiliate of Greater Newport Physicians).

In 2014 Dan with his wife, Janette, established Peterka Insurance Marketing which maintains a focus on senior health plan education and sales. Dan has continued to grow, under Janette’s careful guidance, and frequently leads Medicare Education presentations for both individuals and groups. He believes education can be entertaining as well as informative and finds joy in distilling Medicare’s sometimes vague information.

Dan is a member of the Hoag Concierge Team and holds his insurance license in 6 states.

Janette Peterka

Principal / Independent Broker
Representative of the Hoag Senior Services Team 
Phone: (714) 289-1099
Email: janette@peterkainsurance.com​

Janette Peterka has been in the insurance industry for over 25 years, beginning her career in the Medicare sales division at Health Net of California. She moved into the large employer group sales and account management division, to provide client support and develop the Health Net commercial book of business.

Realizing her true passion was Medicare, Janette joined Pacificare’s SecureHorizon sales team in 2003. As National Director of Sales and Account Management, Janette was instrumental in launching the Secure Horizons’ independent agent sales channel throughout the United States. In 2005 Pacificare was acquired by UnitedHealthcare, and Janette continued to support the efforts of agencies and agents in offering the UnitedHealthcare Medicare portfolio to their clients.

In 2013 Janette stepped away from her role at UntiedHealthcare, and began her journey as an independent producer and agency owner. In 2014 Peterka Insurance Marketing was established with a primary focus on senior health plan education and sales. Along with her husband, Dan, they continue to educate individuals on the various options available in senior healthcare, and develop quality agents.

In 2018 Janette joined the team at Jack Schroeder and Associates, as Vice President of Marketing for the Northwest Region. Her responsibilities at JSA focus on the development, education and training of independent insurance agencies and agents in the Medicare industry.

Janette is a member of the Hoag Concierge Team. She holds her insurance license in eleven states.

Isabella (Isa) Janus

Independent Broker
Phone: (714) 330-2515
Email: isa@peterkainsurance.com

Isa Janus a Benefits and Medicare specialist at Peterka Insurance, a diversified insurance agency in Newport Beach, CA. She has 30 years’ experience in the health care field, with a strong background and passion for Retirees.

Her most recent position, a Sales Consultant at Keenan & Associates in the Municipalities division. Her responsibilities were to manage her client’s expectations and provide expertise in Medicare, GASB liabilities, Retiree Populations along with Private and Public Exchanges.

Prior to Keenan she held a 15-year tenure at UnitedHealthcare, her last position as Vice President Sales, Public Sector. Isa began in the industry in 1987 where she worked as a small group representative for PacifiCare. She then held sales positions in the large group market for HealthNet and moved on to National Accounts and Public Sector Sales at UnitedHealthcare.

Although her experience in the corporate side of the business, she has a strong passion for servicing the individual market, digging in deep with individuals that do not understand the Marketplace Benefits, Retiree Benefits and Medicare.

Her promise to you as a customer is, she will go over and above what you may think be typical and provide you with the expertise you deserve on a timely basis with continual communication.

Isa's favorite pastime is enjoying time with her family and friends. Her interests are traveling, skiing, enjoys water sports along with good music, fun and lots of laughter. Born in Germany, her and her children were raised in Huntington Beach, married to John Janus a Principal at On-Site Builders a General Contractor, specializing in fast food chains.

She studied at University of La Verne, holds her Life and Disability license, is AHIPP certified and holds her National Producer license along with Multiple carrier appointments. She also holds her Notary and Real Estate license and served on the Orange County Association of Health Underwriters Board, (OCAHU) and is a member of the National Association of Health Underwriters (NAHU).

Diana Ngo

Independent Broker
Phone: (949) 226-4064
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Diana Ngo is an independent agent specializing in Medicare education and insurance. She frequently conducts Medicare educational and sales presentations for beneficiaries, medical groups, and senior community influencers in Orange County, CA. Check out our events page for upcoming sessions!

Diana has over 15 years of experience in the healthcare industry; her extensive background and knowledge is focused in sales, marketing outreach, and business development. Before becoming an independent insurance agent, Diana worked for several leading healthcare organizations including: Blue Shield of CA, Children’s Hospital of Orange County, MemorialCare Health System, and Greater Newport Physicians.

Diana’s available for group or private in-home Medicare consultation and education. You can reach Diana at Diana@PeterkaInsurance.com or (949) 226-4064.

Certifications & Licenses
Accident, Health, and Life Insurance License
California Department of Insurance

Medicare and Fraud, Waste and Abuse (FWA)
America’s Health Insurance Plans

Education
 Bachelor of Science in Health Care Administration
California State University of Long Beach

Lines of Business
 Medicare Advantage
Medicare Supplement
Prescription Drugs

Companies
 Aetna/SilverScript
Anthem Blue Cross
Blue Shield of CA
Humana
SCAN
UnitedHealthcare
WellCare

Sylvia Mancino

Office Administration / Independent Broker
Phone: (714) 651-1298
Email: sylvia.mancino.medicare@gmail.com

Sylvia Mancino is an independent agent specializing in Medicare insurance coverage and education. After working in special education for 23 years for Tustin Unified School District, Sylvia has enthusiastically shifted her focus and commitment to senior health plans.

Sylvia began her venture into the Medicare insurance field in June 2019 serving Peterka Insurance in her role as Office Administrator. After receiving her license and Dan’s mentorship, she was ready to serve all those in need of assistance in securing the best possible coverage that fit their needs.

Sylvia’s interests include traveling – especially to Germany to visit her relatives, running, cooking, gardening and spending time with family and close friends.

Sylvia is available for in-office or private, in-home Medicare consultations. She is committed to providing her clients with the highest level of service and attention to detail. She is extremely passionate about helping people through the Medicare process and prides herself in being accessible to her clients whenever they need her.

Certifications & Licenses
Accident & Health
California Department of Insurance
Medicare and Fraud, Waste and Abuse (FWA)

Lines of Business
Medicare Advantage
Medicare Supplement
Prescription Drugs

Companies
Anthem Blue Cross
Aetna/ Silverscript
Humana
SCAN
United Health Care
WellCare