Welcome to Top Tier Diagnostics
Your trusted partner for fast, reliable, and confidential testing services in Ocala, FL, and beyond.Top Tier Diagnostics offers Medical TPA (Third Party Administrator) services, expertly managing drug and alcohol testing programs for businesses and organizations. Our comprehensive services include drug abuse panels, heavy metal testing, advanced nicotine screening, hormone panels, pain management testing, and a full range of drug and alcohol testing solutions. Available 24/7 mobile and afterhours service available.
Convenient
Mobile Services
Experienced
Professionals
Affordable
Options
Compassionate
Care
Who We Are
At Top Tier Diagnostics, we are committed to providing accurate, timely, and comprehensive diagnostic services tailored to meet the needs of individuals, businesses, and organizations. With a focus on quality, compliance, and convenience, we proudly serve as a full-service medical testing and TPA (Third-Party Administrator) provider, specializing in a wide range of testing and compliance solutions.
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What we Do
We go beyond traditional testing facilities—our goal is to be your go-to partner for all diagnostic, regulatory, and compliance needs. Our services include:
Comprehensive Drug & Alcohol Testing​
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DOT & Non-DOT Drug Testing
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Pre-employment, Post-Accident, Random, Reasonable Suspicion, and Probation Testing
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Court-Ordered & Sports Organization Testing
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Pain Management Panels
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Nicotine/Cotinine Testing
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Comprehensive Drug Abuse Panels
DOT Consortium & Compliance
We manage full DOT compliance programs including testing, recordkeeping, random pool management, and more. Whether you’re a single operator or a large fleet, our DOT consortium services ensure you stay compliant.
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Flexible Testing Options
We understand that convenience matters. That’s why we offer:
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On-Site Testing (perfect for businesses and teams)
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Mobile Testing Units (we come to you—home, workplace, or event)
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After-Hours Availability for emergencies and urgent needs
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Post-Accident & Reasonable Suspicion Testing 24/7
Flexible Testing Options
We manage full DOT compliance programs including testing, recordkeeping, random pool management, and more. Whether you’re a single operator or a large fleet, our DOT consortium services ensure you stay compliant.
​
Flexible Testing Options
We understand that convenience matters. That’s why we offer:
-
On-Site Testing (perfect for businesses and teams)
-
Mobile Testing Units (we come to you—home, workplace, or event)
-
After-Hours Availability for emergencies and urgent needs
-
Post-Accident & Reasonable Suspicion Testing 24/7
Your Partner in Health, Safety, and Compliance
Advanced Laboratory Testing
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Heavy Metal Screening
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Expanded Hormone Panels
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Early Gender Testing
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Paternity & DNA Testing
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Respiratory Fit Testing
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In-House Laboratory Services
Background & Identity Services
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Fingerprinting (Ink & Live Scan)
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Criminal & Employment Background Checks
All the care you need.
When and where you need it.
At Top Tier Diagnostics in Ocala, FL, we provide all the care you need, exactly when and where you need it. Our comprehensive range of services is designed to fit seamlessly into your busy schedule, offering you fast, accurate, and reliable testing solutions.
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Why do FAQs matter?FAQs are a great way to help site visitors find quick answers to common questions about your business and create a better navigation experience.
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What is an FAQ section?An FAQ section can be used to quickly answer common questions about your business like "Where do you ship to?", "What are your opening hours?", or "How can I book a service?".
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Where can I add my FAQs?FAQs can be added to any page on your site or to your Wix mobile app, giving access to members on the go.
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How do I add a new question & answer?To add a new FAQ follow these steps: 1. Manage FAQs from your site dashboard or in the Editor 2. Add a new question & answer 3. Assign your FAQ to a category 4. Save and publish. You can always come back and edit your FAQs.
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How do I edit or remove the 'Frequently Asked Questions' title?You can edit the title from the FAQ 'Settings' tab in the Editor. To remove the title from your mobile app go to the 'Site & App' tab in your Owner's app and customize.
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Can I insert an image, video, or GIF in my FAQ?Yes. To add media follow these steps: 1. Manage FAQs from your site dashboard or in the Editor 2. Create a new FAQ or edit an existing one 3. From the answer text box click on the video, image or GIF icon 4. Add media from your library and save.
Contact Us Now!
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What Our Patients Say
James W.
Independent Contractor
"As a contractor who frequently collaborates with medical testing companies, Top Tier Diagnostics has been a game-changer. Their mobile testing services allow me to efficiently manage client demands without compromising quality or turnaround times".
Sarah L.
Registered Nurse
"Working as a nurse, I rely heavily on accurate and fast test results to ensure proper patient care. Top Tier Diagnostics consistently delivers on both fronts. Their staff is highly knowledgeable, and they’ve made my job easier by providing quick, reliable testing right at our location".
Michael R.
HR Manager
"We’ve been using Top Tier Diagnostics for our company’s drug screening and background check services, and the experience has been seamless. Their onsite testing option is incredibly convenient and saves us time."
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Our Partners
