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Almost like another family member, we’re here for you.

Our local bankers are here for your every need. If during business hours, please contact your local branch; we're here to help!

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Important Phone Numbers to Get Help

  • Account Related Assistance

    1-800-227-7715

    Monday - Friday: 
    7:00 am - 7:00 pm MST

    Saturday:  
    7:00 am - 4:00 pm MST

    Sunday:
    7:00 am - 4:00 pm MST

  • Online Banking

    1-800-227-7715

    Monday - Friday: 
    7:00 am - 7:00 pm MST

    Saturday:  
    7:00 am - 4:00 pm MST

    Sunday:
    7:00 am - 4:00 pm MST

  • Debit Card Assistance

    1-800-227-7715

    Monday - Friday: 
    6:00 am - 8:00 pm MST

    Saturday:  
    7:00 am - 4:00 pm MST

    Sunday:
    7:00 am - 4:00 pm MST

  • Online Bill Pay

    1-877-903-0641

    Daily:
    5:00 am - 11:00 pm MST 

  • Online Banking

    1-800-789-7156

    Monday - Friday: 
    7:00 am - 6:00 pm MST

  • Online Bill Pay

    1-877-903-0641

    Daily:
    5:00 am - 11:00 pm MST  

  • Business Premium

    1-800-227-7471

    Monday - Friday:
    7:00 am - 6:00 pm MST 

  • Lost or Stolen Visa Debit Card

    1-800-472-3272

    24/7

  • Activate New Visa Debit Card Within 90 Days of Receipt

    1-800-992-3808

    24/7

  • Change PIN on Your Visa Debit Card

    1-800-992-3808

    24/7

  • Credit Card Balance Inquiries

    1-855-279-1051

    24/7

  • Lost or Stolen Visa Credit Card

    1-855-279-1051

    24/7

  • Diamond Secure Customers Only: Suspect identity fraud / Need to speak with a Resolution Specialist

    1-877-610-7889

    Monday - Friday: 
    8:30 am - 5:00 pm EST

  • Diamond Secure Customers Only: File a Cellular Telephone Claim

    1-877-610-7889

    Monday - Friday: 
    8:30 am - 5:00 pm EST

Find a Person

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  • Grayden J. Guilford

    VP, Commercial Lending

    Office:

    303-859-7365

    Email:

    Grayden.Guilford@pinnbank.com

    Address:

    255 E Sheldon Street
    Prescott, AZ 86301

    NMLS: 2165578

    Grayden Guilford Joined Pinnacle Bank in early 2019 in Fort Collins, CO. Grayden helped lead the Bank's efforts to support struggling businesses through the PPP lending program, facilitating over 700MM in assistance. Shortly after, Grayden joined the team in Prescott, AZ. As a commercial lender, Grayden specializes in financing purchases, refinances, and construction of:

    • Multifamily Housing
    • Medical/Dental Offices
    • Owner Occupied Retail
    • Other Investment R/E

    Grayden is a graduate of Colorado State University, likes to stay active in the community with Prescott's local Rotary Club, and in his free time you'll find him mountain biking or working on his golf swing.

  • Mason Heffelman

    Market President

    Office:

    602-834-1140

    Email:

    mason.heffelman@pinnbank.com

    Address:

    15900 N 78th Street
    Scottsdale, AZ 85260

    An Arizona native, Mason Heffelman joined Pinnacle Bank as Market President of Scottsdale, AZ in 2021. Mason has 20 years of banking experience in the Phoenix market. He holds a Bachelor of Business Administration degree from Western New Mexico University and earned his MBA from Grand Canyon University. He and his wife, Melanie, are the proud parents of two children and enjoy being active members of the community.

  • Wendy Pettay

    Branch Manager

    Office:

    928-268-0682

    Email:

    wendy.pettay@pinnbank.com

    Address:

    1515 E Cedar Avenue
    Flagstaff, AZ 86004

    NMLS: 1254629

    Wendy Pettay knows that trust doesn't happen overnight; it's achieved by a history of positive experiences, which is what she strives for. She is the Branch Manager in Flagstaff's Pinnacle Bank branch. She brings with her over 10 years in the banking industry with a past that ranges from a small credit union to large corporate banks.

    Wendy is driven by helping people to feel confident in their financial institution and having that personal local feel. She takes pride in doing right by people and finding solutions they are comfortable and satisfied with. Wendy is a lifelang Flagstaff resident who enjoys everything outdoors with her family including camping, hunting and boating.

  • Gerald Szostak

    Commercial Loan Officer

    Office:

    602-820-0212

    Email:

    gerald.szostak@pinnbank.com

    Address:

    255 E Sheldon Street
    Prescott, AZ 86301

    NMLS: 2131255

    Gerald has lived in the Prescott area since 2014. He started working for Pinnacle Bank as a commercial and construction lender in January of 2021. Previously, Gerald spent most of his career in the non profit sector working with disadvantaged youth. As the CEO of the local Boys & Girls Clubs he was able to double the organizations membership and revenues while managing overall operations. He holds an MBA from the University of Phoenix and an undergraduate degree from Arizona State University.

    Gerald is very involved in the local community as he sits on the Board of Directors for the Prescott Unified School District Foundation and the YMCA Capital Campaign Committee. In 2016 Gerald was appointed by Arizona Governor Doug Ducey to sit on the State Board of First Things First, an organization that invests $129,000,000 a year in early childhood development across the state.

    Gerald is married with 3 kids and enjoys playing golf, softball, and mountain biking in his free time.

  • Mark Tufte

    Commercial Loan Officer

    Office:

    928-243-2674

    Email:

    mark.tufte@pinnbank.com

    Address:

    255 E Sheldon Street
    Prescott, AZ 86301

    NMLS: 478324

    Mark brings over 22 years of management and lending experience to the greater Verde Valley. He holds a graduate diploma from the Graduate School of Banking at Colorado and a Bachelor of Science degree in Business Management from Western International University. He is also an Independent Community Bankers Association's Certified Commercial Loan Officer. Mark believes in developing strong relationships with existing clients and enjoys finding financial solutions for new customers. Mark enjoys serving the communities that he works in by coaching youth sports, supporting the FFA animal auction, and board membership for local nonprofit organizations.

  • Grant Williams

    Financial Advisor and Investment Management Consultant

    Office:

    480.490.8144

    Email:

    grant.williams@raymondjames.com

    Address:

    15900 N 78th Street
    Scottsdale, AZ 85260

    Grant Williams is the Financial Adviser for Pinnacle Bank Investment Services covering the Scottsdale, Prescott and Flagstaff markets. He has 15 years of industry experience with a certification as a Certified Wealth Strategist. Grant works with individuals, businesses, and high net-worth families to listen to each of their unique situations and put together financial plans that encompass all of their financial goals. He has made a career out of being approachable and great communication with his clients.

    Grant has worked in many different roles within the financial industry and is well rounded in regard to looking at client’s whole financial picture. He partners with his clients to build a goal based financial plan to help clients envision their future with confidence so they can enjoy life and retirement. He wants clients to use him as a resource for any financial discussions or needs so he can help navigate and educate clients on possible solutions.

    Grant was born in the mountains of Colorado and grew up in the town of Fort Collins. He went to school at the University of Kansas for 3 years and finished at University of Louisville. He played baseball at both universities...

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If you prefer assistance via email, our customer service email address is CustomerService@pinnbank.com.  Please be advised that email is not a secure method of communication and should not be used to provide personal, non-public information such as account numbers, social security numbers, dates of birth, etc. 

And, as always, you are free to call your local branch for assistance.

NOTICE TO CONSUMER LOAN BORROWERS

IF YOU FEEL THERE HAS BEEN AN ERROR IN THE SERVICING OF YOUR MORTGAGE LOAN OR IF YOU WOULD LIKE INFORMATION CONCERNING YOUR MORTGAGE LOAN, PLEASE SEND A WRITTEN REQUEST TO:

Bank of Colorado - Loan Processing Center,
1609 E Harmony Rd,
Fort Collins CO  80525

Your request must contain a) Borrower’s name, b) Identification of your loan such as loan number and c) Information on the error that is believed to have occurred or a description of the information requested. You will receive a response within 5 business days.