About Us
Our strength lies in the diversity of the communities we serve, and the broad reach of our team allows us to leverage a multitude of resources for the benefit of every client. With long-standing offices in Amarillo, Lubbock, Midland/Odessa, and San Angelo, we are proud to be a major player in one of the state’s most dynamic regions. We take pride in being a forward-thinking leader in the risk management industry across West Texas, combining national strength with our trusted local presence to deliver even greater value. Our team works closely with clients to develop tailored strategies that go far beyond standard insurance policies. For us, it’s all about relationships. Earning trust, delivering value, and being there when it matters most.
We embrace a culture rooted in service. Taking the time to walk alongside our clients, understanding their operations, identifying risks, and offering meaningful recommendations that help strengthen and support long-term success. Our boots-on-the-ground approach allows us to bring real-world insights into every conversation and create protection strategies with purpose. That same commitment extends to our communities. We believe in giving back, serving others, and building lasting goodwill.
At Alera Group, our work doesn’t stop once a policy is written. Our Pathway to Client Success is built on ongoing collaboration, proactive support, and thoughtful planning. It’s how we ensure you’re protected and positioned for what’s next.
Meet Our Team
Diannah Tatum, CIC
Operating Partner
Diannah specializes in medical malpractice and has built her career in an industry that is often complex and not widely understood. She is passionate about helping clients navigate this space with confidence and clarity. In addition to her client work, Diannah mentors the West Texas Growth Leaders. A proven innovator, Diannah played a key role in the creation of the Texas Medical Safety Group program through Texas Mutual, which provides medical industry employers with premium discounts, performance-based dividends, and access to tailored safety resources and eLearning courses.
A dedicated leader beyond the workplace, Diannah has been deeply involved in her community. She currently serves on the Covenant Board, volunteers at Covenant Children’s Hospital, and has previously served as Chair of the Lubbock Chamber of Commerce and the Goodwill Board. She believes that while financial support is important, giving one’s time is truly invaluable.
Rhonda Thomack, CIC
Benefits Consultant
Rhonda brings more than 40 years of experience in employee benefits to her clients. She specializes in developing strategies that help employers reduce costs while offering benefit packages that employees truly value. Passionate about education, Rhonda enjoys helping employees understand the full worth of their benefits and leveraging Alera Group’s resources and tools to deliver tailored solutions. She has earned her Accredited Customer Service Representative (ACSR) designation in Commercial Lines and is a Certified Insurance Counselor (CIC).
Rhonda has also served in multiple leadership roles with the Lubbock Area Association of Health Underwriters. Dedicated to giving back, she has supported the American Diabetes Association and contributed to numerous charity golf tournaments. Outside the office, Rhonda enjoys lake trips with family and friends, estate sale shopping, and spending time outdoors with their many dogs, who are very much part of the family.
LinkedInSherry Walton, ACSR
Personal Lines Risk Consultant
Sherry specializes in home and auto insurance, working closely with clients to help them understand their policies while ensuring they receive optimal coverage at competitive rates. With over 28 years in the industry, her comprehensive approach extends beyond basic coverage to include umbrella, boat, motorcycle, renters, and landlord policies. Sherry earned the ACSR designation and maintains licenses in both property & casualty and life & health insurance.
Beyond her professional achievements, Sherry demonstrates a strong commitment to community service through her involvement with the Big Brothers Big Sisters program. Outside the office, she stays active at the gym, explores new destinations through travel, attends concerts, and cherishes quality time with her family and grandchildren.
Stephenie L. Owen, CPA
VP of Finance
Stephenie brings strong financial leadership and attention to detail to the agency. A Texas Society of CPAs member, she has spent most of her career in Amarillo, aside from a three-year chapter in Dallas. Her roots in the community run deep, and her unique name carries family meaning.
Outside of the office, Stephenie’s greatest joy is her family. She and her husband love cheering on their daughter in sports, camping, and spending time together in the mountains.
EXPERT EDUCATION
Events and Webinars
Employee Benefits
Q4 2025 Quarterly Compliance Webinar
Alera Group's quarterly employee benefits compliance roundup will help you stay current on the latest national regulatory developments impacting employers.
November 4, 2025 at 01:00 pm CT | Virtual
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Employee Benefits
Navigating Medicare: Educational Webinar
The knowledgeable team at Alera Group is here to help you navigate your Medicare options to ensure you feel confident in your post-65 healthcare coverage.
November 12, 2025 at 12:00 pm CT | Virtual
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THOUGHT LEADERSHIP
Insights
Property and Casualty
Top 5 Insurance Surprises Businesses Face in Q4 — and How to Prevent Them
As year-end approaches, many organizations focus on closing out financials and planning for the year ahead. It’s also the time when insurance programs often reveal unexpected challenges, some avoidable, others the result of shifting market conditions or overlooked details.
October 30, 2025
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Employee Benefits
Legal Alert: IRS Adjusts Health Flexible Spending Account and Other Benefit Limits for 2026
This alert is of interest to all employers that sponsor health FSAs and qualified transit plans, among others.
October 10, 2025
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Employee Benefits
2025 Leave Report: Insights to Guide 2026 Leave Planning
Explore Alera Group’s 2025 Leave Report. Benchmark PTO, parental leave, and holiday policies to strengthen employee retention and recruitment as you plan for 2026 and beyond.
October 1, 2025
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Alera Group’s 2025 Property and Casualty Market Update
Alera Group’s 2025 Property and Casualty Market Update, designed as a bridge between Alera Group’s annual Market Outlooks — provides insight into pricing, coverage availability, market capacity and underwriting trends for the balance of 2025.
August 1, 2025
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