DOT Physical Exams - Knox, WI

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With 27 testing centers in the Knox area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.

27 DOT Drug-Testing Centers in Knox

Minutes Away, Test Today

1511 Railroad Ave

9.57 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-7:00 PM✓ Walk-in with Electronic Donor Pass
1511 Railroad Ave
Prentice, WI 54556

1121 Hwy 102

16.99 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-8:00 PM • Sat:,Sun: 9:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
1121 Hwy 102
Rib Lake, WI 54470

625 Peterson Ave

17.08 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
625 Peterson Ave
Phillips, WI 54555

401 W Mohawk Dr

17.78 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-4:00 PM • Sat: 8:00 AM-11:00 AM✓ Walk-in with Electronic Donor Pass
401 W Mohawk Dr
Tomahawk, WI 54487

104 Trinity Dr

19.04 mi
🕑 Testing Hours: M-Th 7:00 AM-4:30 PM • F 7:00 AM-3:30 PM✓ Walk-in with Electronic Donor Pass
104 Trinity Dr
Phillips, WI 54555

9601 Townline Rd

29.98 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9601 Townline Rd
Minocqua, WI 54548

240 Maple St

30.27 mi
🕑 Testing Hours: Mon–Fri: 10:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
240 Maple St
Woodruff, WI 54568

50 Sherry Ave

31.32 mi
🕑 Testing Hours: Mon–Fri: 6:30 AM-2:30 PM✓ Walk-in with Electronic Donor Pass
50 Sherry Ave
Park Falls, WI 54552

135 S Gibson St

31.35 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
135 S Gibson St
Medford, WI 54451

98 Sherry Ave

31.37 mi
🕑 Testing Hours: Mon–Fri: 6:20 AM-12:00 PM & 12:30 PM-3:00 PM✓ Walk-in with Electronic Donor Pass
98 Sherry Ave
Park Falls, WI 54552

500 Birch St

31.58 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-6:00 PM✓ Walk-in with Electronic Donor Pass
500 Birch St
Park Falls, WI 54552

607 N Sales St

32.34 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
607 N Sales St
Merrill, WI 54452

601 S Center Ave

32.55 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
601 S Center Ave
Merrill, WI 54452

1205 O Day St

32.64 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1205 O Day St
Merrill, WI 54452

1020 Kabel Ave

33.18 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-6:00 PM✓ Walk-in with Electronic Donor Pass
1020 Kabel Ave
Rhinelander, WI 54501

3333 E Main St

33.32 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3333 E Main St
Merrill, WI 54452

5818 Fire Ln

41.41 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
5818 Fire Ln
Rhinelander, WI 54501

320 E Main St

43.83 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
320 E Main St
Gilman, WI 54433

111 Dehne Dr

44.94 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
111 Dehne Dr
Colby, WI 54421

425 Wind Ridge Dr

45.28 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
425 Wind Ridge Dr
Wausau, WI 54401

2727 Plaza Dr

45.35 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2727 Plaza Dr
Wausau, WI 54401

2600 Stewart Avenue Suite 154

45.78 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2600 Stewart Avenue Suite 154
Wausau, WI 54401

808 3rd St Ste 108

46.35 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
808 3rd St Ste 108
Wausau, WI 54403

201 Hospital Rd

48.07 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
201 Hospital Rd
Eagle River, WI 54521

906 College Ave W Attn Lab

49.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
906 College Ave W Attn Lab
Ladysmith, WI 54848

900 College Ave W

49.76 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
900 College Ave W
Ladysmith, WI 54848

320 Ross Ave Ste 14

49.78 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
320 Ross Ave Ste 14
Schofield, WI 54476

Knox, WI DOT Physical - What You Need to Know

DOT physical exams are thorough medical checks mandated by the Department of Transportation for drivers of commercial vehicles. These exams are vital to confirm drivers have the physical, mental, and emotional ability to drive on public roads safely. A certified medical examiner (CME) on the National Registry of Certified Medical Examiners (NRCME) conducts the test. A passing result earns a DOT Medical Certificate, required for holding a CDL under FMCSA rules. For inquiries about specific DOT exams, call 800-221-4291.

During your exam, the medical examiner will complete a thorough health assessment to determine if you meet the Federal Motor Carrier Safety Administration (FMCSA) medical standards. The process typically includes:

What Does a DOT Physical Include?

Health History Review
Vision Test

Hearing Test
Urinalysis

Vital Signs
Physical Examination

DOT Testing | DOT Breath Alcohol | DOT Consortium Services | MVR Reports Also Available


What is checked in a DOT Physical?

  • Health history evaluation including medications
  • Vision test (corrective lenses acceptable per standard)
  • Hearing test (using whisper or audiometry)
  • Measurement of blood pressure and pulse
  • Comprehensive physical exam (system review)
  • Urine analysis (checking specific gravity, protein, glucose)

On passing, a Medical Examiner's Certificate (MEC) can be issued for up to 24 months. In Knox, MA, some conditions may lead to reduced certification period or need for specialist letters.

Who needs a DOT Physical?

A current DOT medical certificate (card) is required if you:

  • Possess a commercial driver's license (CDL) - classes A, B, or C, for interstate activities
  • Operate vehicles over 10,001 lbs GVWR in interstate commerce
  • Transport over 8 paying or more than 15 non-paying passengers
  • Carry hazardous substances that necessitate DOT warning placards
  • Work for DOT-supervised companies like FMCSA, FAA, FRA, FTA, or USCG needing DOT medical credentials, applicable in Knox, ME

What to bring with you to a DOT Physical?

  • Bring an official photo ID
  • Remember your glasses/contacts and their prescriptions
  • Medication details with dosages listed
  • CPAP usage records (if applicable)
  • Specialist approvals (re: cardiology, sleep apnea, diabetes, etc.)
  • Current A1C/blood pressure records if tracked

Essential items to bring for your medical check-up in Knox, MI include the above for ensuring a precise examination and necessary documentation to aid the certification process.

What happens if I fail a DOT Physical?

  • No Medical card will be issued
  • Temporary disqualification
  • Referral for treatment to your primary care doctor
  • FMCSA exemptions for certain medical conditions
  • Employer Notification
  • Next Steps (address the medical issues and retake the exam)

These are the potential outcomes specifically in Knox, WI.

What Will Fail a DOT Physical?

Medical Conditions That Can Fail a DOT Physical

  • Vision & Hearing: Vision worse than 20/40 in each eye (even with correction), difficulty in recognizing traffic signal colors, or hearing deficiency affecting a forced whisper at a 5-foot distance.
  • Blood Pressure & Heart Disease: Hypertension (≥180/110 mmHg) not under control, recent heart attack or stroke, uncontrolled angina, or a defibrillator implant lacking approval.
  • Diabetes: Poorly managed diabetes with recurrent low blood sugar or complications disrupting safe driving.
  • Sleep Apnea & Respiratory Concerns: Untreated sleep apnea causing daytime sleepiness, or serious lung disease affecting oxygen levels.
  • Neurological Disorders: Seizure disorders (exceptions allowed), conditions leading to loss of consciousness, dizziness, or uncontrolled tremors.
  • Substance Abuse: Present illegal drug use, alcohol addiction, or misuse of medications affecting driving.
  • Psychiatric & Cognitive Disorders: Severe psychiatric disorders not under control (e.g., schizophrenia, recent bipolar episodes) or cognitive decline influencing decision-making and response times.

Some conditions may cause temporary disqualification till medical approval or documentation is provided (e.g., managed blood pressure, diabetes handled well). Others, like untreated seizure disorders or unapproved implanted defibrillators, are typically considered permanently disqualifying under FMCSA standards.

Knox Drug Testing

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Knox DOT Drug Testing

Quickly find a local DOT drug testing center in Knox, WI — fast, reliable, convenient nationwide service!

Knox DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Knox, WI.

Knox Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Knox, WI.v

Knox Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Knox, WI locations—results you can trust, every time!

Knox Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Knox, WI.

Knox Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Knox, WI.

Knox 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Knox, WI employers and individuals nationwide.

Knox 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Knox, WI workplace and personal testing needs.

Knox On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Knox, WI workplace compliant.

Knox DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Knox, WI drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.


Frequently Asked Questions

A DOT physical typically includes a review of the driver’s health history and medications, vision screening, hearing assessment, vital signs (blood pressure, pulse), urinalysis (checking specific gravity, protein, glucose), and a full physical examination by a certified medical examiner. Upon passing, a Medical Examiner’s Certificate (DOT medical card) may be issued for up to 24 months.
You must have a valid DOT medical certificate if you: hold a commercial driver’s license (CDL) Class A, B or C for interstate commerce; operate a vehicle over 10,001 lbs GVWR in interstate commerce; transport more than eight passengers (for hire) or over fifteen passengers (not for hire); or transport hazardous materials requiring placarding under DOT regulations.
DOT physicals are offered at test centres in all cities and all states, through Accredited Drug Testing’s nationwide network. You can schedule by calling 1-800-221-4291.
You should bring a government-issued photo ID; glasses or contact lenses and the prescription; a list of medications and dosages; CPAP usage data if applicable; and any specialist clearance letters or physician documentation (for conditions like heart disease, sleep apnea, diabetes) to your DOT physical.
If you fail the DOT physical, you will not receive the medical card; you may be temporarily or permanently disqualified depending on the condition; you will need to address any medical issues (e.g., uncontrolled hypertension, untreated sleep apnea, recent myocardial infarction) and then be re-examined.

Customer Reviews

Kind and very helpful

Called around for hours and posted from company to person and got nowhere and had to fight to get a refund die to there miss information, well save time and sanity Acredited is the ONLY place the person was kind and very helpful, said what I needed and Faith the lady I dealt with made it simple and she did above and beyond everything I needed, as I'm going through a devorse this was a great help and made my day 100 stars from me.

Steven Harrison - 12/19/2024

phone support has been excellent

I have used ADT several times. Their phone support has been excellent, both when putting in the orders and when asking for help to interpret results.

Tee Ess - 12/19/2024

Very Fun and Easy

Trish last week and Tatiana this week, very fun and easy folks to deal with. Well be using them more and more in the future.

Tom O - 12/19/2024

test was quick and easy

Company New Hire Employee Process for DOT Drug test was quick and easy. No need to make appt. All employee had to do is show prepaid qr code I sent to employee show ID and was set. Would Recommend.

Maria Lopez - 11/19/2024

Thank You!!

I needed a quick drug test for visitation with my children. I called at 6am they answered and set me up with a place a couple miles from my house to go get the test done, that was on Wednesday, I had the results on Friday afternoon and was able to see my kids on Saturday. Thank you for the help!

Mark Broadhead - 2/12/2025

ADT is truly the best

Where do I start?!! ADT is truly the best!! I had the pleasure of speaking with Tori today! She was excellent, professional and truly went above and beyond in her kind, compassionate care and commitment to providing me with the best service possible. I was in such a time crunch, but I was able to call, order the test, pay for it over the phone and get the test I needed within the hour. Not only did this put my mind at ease, they saved my job!! I am forever grateful for this team of hard workers, that care, with such great work ethics! Thank you from the very bottom of my heart!!! If you need a drug, alcohol, etc… screening, this team will be your lifesavers!!

Sarah Patterson - 4/8/2025

Everything was great

Everything was great, the staff was very polite. Thank you.

Olga Petrova - 9/19/2024

Very professional and very quick

Very professional and very quick service to schedule appointments! I am pleased with the services and would definitely recommend using them for any drug testing needs!

Carrie Feerick - 4/19/2025

Accredited has been wonderful to work with!

Accredited has been wonderful to work with! My court ordered tests are on a very strange schedule but every time I call, they are quick to schedule me and are always able to find a location that works for where I’m at and when! Thank you for making this rather undesirable situation less stressful and efficient.

Madison Sanderford - 8/19/2024

Fast and easy

It was fast and easy a pleasure to talk to the customer service people great service

Peter Villegas - 1/19/2025


(800) 221-4291