"Directed to Phisihing Page for Valid URL"
Also phishing URLs are valid URLs.
Unfortunately you didn't say what URL you are referring to, so I cannot comment on this. You may try to find out yourself at www.phishtank.com why this is classified as phishing.
"I can change to Google DNS and have no problems."
Sure, Google Public DNS doesn't protect against phishing, unlike OpenDNS, therefore you can access the site with Google Public DNS.
"Seems requirements have changed when using OpenDNS now?"
No, never. Phishing protection as default was nearly from begin. If you want to have pure DNS, no problem. You visit your dashboard and disable the protection under Web Content Filtering and under Security.
"I don't need any services other than resolving the URL to IP."
This does not exist in the world. A URL is not associated with an IP address, only domain names may be associated with an IP address. And I told you how you get OpenDNS to do this for you.