Maryland Drug Test


At Workplace Screening Intelligence (WSI), we are dedicated to simplifying the drug testing process for employers across Maryland. Our comprehensive services cater to both DOT and non-DOT regulated industries, ensuring your workplace remains safe and compliant with state and federal regulations.

Why Choose Workplace Screening in Maryland?


  • Expertise and Experience: With years of experience in the drug screen industry, our team at WSI understands the unique requirements and challenges faced by employers in Maryland.
  • Comprehensive Services: We offer a full range of drug testing services, including pre-employment, random, post-accident, and reasonable suspicion testing.
  • Advanced Technology: Utilizing the latest in testing technology, we provide accurate and reliable results quickly, reducing downtime and ensuring minimal disruption to your operations.
  • Compliance Assurance: Our knowledgeable staff stays up-to-date with the latest regulations, helping you navigate and comply with both Maryland-specific and federal guidelines.
  • Electronically Enabled Sites: We offer 20,000+ electronically enabled sites which means you can order a drug test and complete it today, or by your deadline.
  • Convenient Locations: With a network of collection sites throughout Maryland, we ensure easy access and convenience for your employees.

How It Works


  1. Contact Us: Reach out to our team to discuss your specific needs and receive a customized screening plan.
  2. Schedule Testing: We’ll arrange for testing at one of our convenient locations or even on-site at your workplace.
  3. Receive Results: Access your results securely online, ensuring prompt and confidential reporting.
  4. Stay Compliant: Let us help you stay compliant with ongoing monitoring and support services tailored to Maryland‘s and federal regulations.

Physicals & Health Testing


  • DOT Physicals
  • Physicals
    • Respirator Physicals: For workers who handle hazardous substances.
    • Pulmonary Function Test
    • OSHA Medical Questionnaire
    • Lift Test
    • Chest X-Rays
    • Kraus Weber
    • EKG
    • Vision Test
      • Vision Snellen
      • Vision Titmus
      • Vision Ishihara
      • Vision Jager
  • Titer Testing
    • Hepatitis A
    • Hepatitis B
    • Hepatitis C
    • TransFERRON Gold Tuberculosis
    • Measles
  • Wellness Testing

Workplace Programs and Training


Additional Services


Contact Us


Maryland Testing Locations


NameAddressCityStateZIP Code
WSI Testing Location2855 Crain Highway Waldorf Maryland 20601
WSI Testing Location12070 OLD LINE CTR Waldorf Maryland 20602
WSI Testing Location12090 Old Line Center Waldorf Maryland 20602
WSI Testing Location12090 Old Line Ctr Waldorf Maryland 20602
WSI Testing Location12106 Old Line Center Waldorf Maryland 20602
WSI Testing Location3460 Old Washington Rd Waldorf Maryland 20602
WSI Testing Location3500 OLD WASHINGTON RD STE 104 Waldorf Maryland 20602
WSI Testing Location3225 Crain Highway Waldorf Maryland 20603
WSI Testing Location45325 Abell House Lane California Maryland 20619
WSI Testing Location29770 Three Notch Road Charlotte Hall Maryland 20622
WSI Testing Location24035 THREE NOTCH RD Hollywood Maryland 20636
WSI Testing Location1430 SOLOMON'S ISLAND ROAD Huntingtown Maryland 20639
WSI Testing Location15 Shining Willow Way La Plata Maryland 20646
WSI Testing Location403 Charles St La Plata Maryland 20646
WSI Testing Location6750 Crain Highway La Plata Maryland 20646
WSI Testing Location21775 GREAT MILLS ROAD Lexington Park Maryland 20653
WSI Testing Location22196 Three Notch Road Lexington Park Maryland 20653
WSI Testing Location110 Hospital Rd Prince Frederick Maryland 20678
WSI Testing Location130 Hospital Road Prince Frederick Maryland 20678
WSI Testing Location20 CRESTON LANE Kermit Maryland 20688
WSI Testing Location10424 Baltimore Avenue Beltsville Maryland 20705
WSI Testing Location10452 BALTIMORE AVE Beltsville Maryland 20705
WSI Testing Location4451 Parliament Place Lanham Maryland 20706
WSI Testing Location9332 ANNAPOLIS RD Lanham Maryland 20706
WSI Testing Location13944 Baltimore Avenue Laurel Maryland 20707
WSI Testing Location14201 Laurel Park Drive Laurel Maryland 20707
WSI Testing Location14421 Baltimore Avenue Laurel Maryland 20707
WSI Testing Location14700 Baltimore Avenue Laurel Maryland 20707
WSI Testing Location4000 Mitchellville Rd Bowie Maryland 20716
WSI Testing Location10981 Johns Hopkins Road Laurel Maryland 20723
WSI Testing Location3357B CORRIDOR MARKETPLACE Laurel Maryland 20724
WSI Testing Location9000 Woodyard Road Clinton Maryland 20735
WSI Testing Location6201 Greenbelt Road College Park Maryland 20740
WSI Testing Location9141 Alaking Court Capitol Heights Maryland 20743
WSI Testing Location525 Eastern Avenue Northeast Fairmount Heights Maryland 20743
WSI Testing Location6188 Oxon Hill Road Oxon Hill Maryland 20745
WSI Testing Location6196 Oxon Hill Road Oxon Hill Maryland 20745
WSI Testing Location4710 Auth Place Camp Springs Maryland 20746
WSI Testing Location3710 Rivera Street Marlow Heights Maryland 20748
WSI Testing Location3710 Riviera Street Temple Hills Maryland 20748
WSI Testing Location5606 Holton Lane Temple Hills Maryland 20748
WSI Testing Location10845 Town Center Boulevard Dunkirk Maryland 20754
WSI Testing Location12200 ANNAPOLIS RD, SUITE 120 Glenn Dale Maryland 20769
WSI Testing Location7933 Belle Point Drive Greenbelt Maryland 20770
WSI Testing Location1300 Mercantile Lane Largo Maryland 20774
WSI Testing Location3510 Heidi Lane Springdale Maryland 20774
WSI Testing Location6201 ANNAPOLIS ROAD Landover Hills Maryland 20784
WSI Testing Location8500 Annapolis Road New Carrollton Maryland 20784
WSI Testing Location6001 Landover Road Cheverly Maryland 20785
WSI Testing Location8106 D STAYTON DR Jessup Maryland 20794
WSI Testing Location4641 Montgomery Avenue Bethesda Maryland 20814
WSI Testing Location10215 FERNWOOD RD. Bethesda Maryland 20817
WSI Testing Location6410 Rockledge Drive Bethesda Maryland 20817
WSI Testing Location18111 PRINCE PHILIP DR Olney Maryland 20832
WSI Testing Location15005 Shady Grove Rd Rockville Maryland 20850
WSI Testing Location15225 SHADY GROVE ROAD Rockville Maryland 20850
WSI Testing Location2301 Research Boulevard Rockville Maryland 20850
WSI Testing Location9707 Medical Center Dr Rockville Maryland 20850
WSI Testing Location11119 Rockville Pike Rockville Maryland 20852
WSI Testing Location750 Rockville Pike Rockville Maryland 20852
WSI Testing Location12321 Middlebrook Road Germantown Maryland 20874
WSI Testing Location19785 Crystal Rock Dr Germantown Maryland 20874
WSI Testing Location19785 CRYSTAL ROCK DRIVE Germantown Maryland 20874
WSI Testing Location19825 Frederick Road Germantown Maryland 20876
WSI Testing Location19851 Observation Drive Germantown Maryland 20876
WSI Testing Location20528 Boland Farm Rd Germantown Maryland 20876
WSI Testing Location8945 North Westland Drive Gaithersburg Maryland 20877
WSI Testing Location814 West Diamond Avenue Gaithersburg Maryland 20878
WSI Testing Location803 RUSSELL AVENUE Gaithersburg Maryland 20879
WSI Testing Location10801 Lockwood Drive Silver Spring Maryland 20901
WSI Testing Location12210 Plum Orchard Drive Silver Spring Maryland 20904
WSI Testing Location13823 OUTLET DR Silver Spring Maryland 20904
WSI Testing Location7835 Eastern Avenue Silver Spring Maryland 20910
WSI Testing Location995 Hospitality Way Aberdeen Maryland 21001
WSI Testing Location998 Hospitality Way Aberdeen Maryland 21001
WSI Testing Location1290 Bay Dale Drive Arnold Maryland 21012
WSI Testing Location560 W MACPHAIL RD Bel Air Maryland 21014
WSI Testing Location620 W Macphail Rd Bel Air Maryland 21014
WSI Testing Location2227 OLD EMMORTON RD Bel Air Maryland 21015
WSI Testing Location1200 Brass Mill Road Belcamp Maryland 21017
WSI Testing Location1321 RIVERSIDE PARKWAY Belcamp Maryland 21017
WSI Testing Location1321 RIVERSIDE PKWY Belcamp Maryland 21017
WSI Testing Location10 WARREN RD, STE 260 Cockeysville Maryland 21030
WSI Testing Location3059 Solomons Island Road Edgewater Maryland 21037
WSI Testing Location3106 Solomons Island Road Edgewater Maryland 21037
WSI Testing Location2120 Emmorton Park Road Edgewood Maryland 21040
WSI Testing Location9055 Chevrolet Dr Ellicott City Maryland 21043
WSI Testing Location11055 LITTLE PATUXENT PKWY Columbia Maryland 21044
WSI Testing Location6656 Dobbin Road Columbia Maryland 21045
WSI Testing Location10440 Shaker Drive Columbia Maryland 21046
WSI Testing Location6310 Stevens Forest Road Columbia Maryland 21046
WSI Testing Location2016 Rock Spring Road Forest Hill Maryland 21050
WSI Testing Location2401 Brandermill Boulevard Gambrills Maryland 21054
WSI Testing Location200 Hospital Dr Glen Burnie Maryland 21061
WSI Testing Location7010 RITCHIE HWY Glen Burnie Maryland 21061
WSI Testing Location7901 Ritchie Highway Glen Burnie Maryland 21061
WSI Testing Location811 Cromwell Park Dr Glen Burnie Maryland 21061
WSI Testing Location6020 Meadowridge Center Drive Elkridge Maryland 21075
WSI Testing Location7377 Washington Blvd Elkridge Maryland 21075
WSI Testing Location251 LEWIS LANE, STE 304 Havre De Grace Maryland 21078
WSI Testing Location701 Digital Dr Linthicum Heights Maryland 21090
WSI Testing Location10755 Falls Rd Lutherville-timonium Maryland 21093
WSI Testing Location1205 York Rd Lutherville-timonium Maryland 21093
WSI Testing Location1205 York Road Lutherville-timonium Maryland 21093
WSI Testing Location1774 York Road Lutherville-timonium Maryland 21093
WSI Testing Location1830 York Road Lutherville-timonium Maryland 21093
WSI Testing Location2209 Dulaney View Court Lutherville-timonium Maryland 21093
WSI Testing Location10210 REISTERSTOWN RD Owings Mills Maryland 21117
WSI Testing Location10490 Owings Mills Boulevard Owings Mills Maryland 21117
WSI Testing Location23 Crossroads Drive Owings Mills Maryland 21117
WSI Testing Location25 Crossroads Drive Owings Mills Maryland 21117
WSI Testing Location8105 Ritchie Highway Pasadena Maryland 21122
WSI Testing Location14237 Jarrettsville Pike Phoenix Maryland 21131
WSI Testing Location11722 REISTERSTOWN ROAD Reisterstown Maryland 21136
WSI Testing Location517 Main Street Reisterstown Maryland 21136
WSI Testing Location537 RITCHIE HIGHWAY Severna Park Maryland 21146
WSI Testing Location700B CORPORATE CT Westminister Maryland 21157
WSI Testing Location222 WASHINGTON ROAD Westminster Maryland 21157
WSI Testing Location226 Washington Heights Medical Center Westminster Maryland 21157
WSI Testing Location826 Washington Road Westminster Maryland 21157
WSI Testing Location11424 PULASKI HWY White Marsh Maryland 21162
WSI Testing Location100 S Charles St Baltimore Maryland 21201
WSI Testing Location105 W CHESAPEAKE AVE Towson Maryland 21204
WSI Testing Location7801 York Road Towson Maryland 21204
WSI Testing Location950 York Road Towson Maryland 21204
WSI Testing Location1860 Reisterstown Rd Pikesville Maryland 21208
WSI Testing Location711 West 40th Street Baltimore Maryland 21211
WSI Testing Location6821 Reisterstown Road Baltimore Maryland 21215
WSI Testing Location2300 Garrison Blvd Baltimore Maryland 21216
WSI Testing Location1515 Martin Boulevard Middle River Maryland 21220
WSI Testing Location1576 MERRITT BLVD STE 3 Dundalk Maryland 21222
WSI Testing Location7544 HOLABIRD AVE Dundalk Maryland 21222
WSI Testing Location1833 Portal Street Baltimore Maryland 21224
WSI Testing Location3600 O'Donnell St Baltimore Maryland 21224
WSI Testing Location5100 Eastern Avenue Baltimore Maryland 21224
WSI Testing Location4807 Benson Avenue Arbutus Maryland 21227
WSI Testing Location1419 KNECHT AVE Baltimore Maryland 21227
WSI Testing Location3302 Washington Boulevard Halethorpe Maryland 21227
WSI Testing Location4601 Benson Avenue Halethorpe Maryland 21227
WSI Testing Location2 E Rolling Crossroads Catonsville Maryland 21228
WSI Testing Location3802 Southwestern Boulevard Baltimore Maryland 21229
WSI Testing Location1421 South Caton Avenue Baltimore Maryland 21230
WSI Testing Location8830 BELAIR RD Baltimore Maryland 21236
WSI Testing Location4211 Blakely Avenue Nottingham Maryland 21236
WSI Testing Location8101 Pulaski Hwy Rosedale Maryland 21237
WSI Testing Location8652 Pulaski Hwy Rosedale Maryland 21237
WSI Testing Location9110 Philadelphia Rd Rosedale Maryland 21237
WSI Testing Location1220A East Joppa Road Towson Maryland 21286
WSI Testing Location2661 Riva Rd Annapolis Maryland 21401
WSI Testing Location820 BESTGATE RD Annapolis Maryland 21401
WSI Testing Location1667 Homewood Landing Rd Annapolis Maryland 21409
WSI Testing Location1050 West Industrial Boulevard Cumberland Maryland 21502
WSI Testing Location320 S MECHANIC ST Cumberland Maryland 21502
WSI Testing Location1219 National Highway La Vale Maryland 21502
WSI Testing Location10701 New Georges Creek Road Southwest Frostburg Maryland 21532
WSI Testing Location251 North 4th Street Oakland Maryland 21550
WSI Testing Location69 WOLF ACRES DR Oakland Maryland 21550
WSI Testing Location219 S WASHINGTON ST Easton Maryland 21601
WSI Testing Location28522 Marlboro Avenue Easton Maryland 21601
WSI Testing Location401 Purdy St Easton Maryland 21601
WSI Testing Location8163 OCEAN GATEWAY Easton Maryland 21601
WSI Testing Location8615 COMMERCE DR. Easton Maryland 21601
WSI Testing Location2 Aurora St Cambridge Maryland 21613
WSI Testing Location2 AURORA ST; STE. 3 Cambridge Maryland 21613
WSI Testing Location300 Sunburst Highway Cambridge Maryland 21613
WSI Testing Location204 Banjo Lane Centreville Maryland 21617
WSI Testing Location1802 Main Street Chester Maryland 21619
WSI Testing Location100 BROWN STREET Chestertown Maryland 21620
WSI Testing Location514 Washington Avenue Chestertown Maryland 21620
WSI Testing Location8 Denton Plaza Denton Maryland 21629
WSI Testing Location490 Prospect Boulevard Frederick Maryland 21701
WSI Testing Location110 Baughmans Lane Frederick Maryland 21702
WSI Testing Location161 Thomas Johnson Drive Frederick Maryland 21702
WSI Testing Location165 Thomas Johnson Dr Frederick Maryland 21702
WSI Testing Location99 Baughmans Lane Frederick Maryland 21702
WSI Testing Location633 Research Court Frederick Maryland 21703
WSI Testing Location5930 FREDERICK CROSSING LANE Frederick Maryland 21704
WSI Testing Location10715 Downsville Pike Hagerstown Maryland 21740
WSI Testing Location1125 Opal Court Hagerstown Maryland 21740
WSI Testing Location1741 Dual Highway Hagerstown Maryland 21740
WSI Testing Location11110 Medical Campus Rd Hagerstown Maryland 21742
WSI Testing Location11236 Robinwood Drive Hagerstown Maryland 21742
WSI Testing Location13424 PENNSYLVANIA AVE Hagerstown Maryland 21742
WSI Testing Location130 W. HIGH ST. Hancock Maryland 21750
WSI Testing Location205 Center St Mt Airy Maryland 21771
WSI Testing Location1311 Londontown Boulevard Eldersburg Maryland 21784
WSI Testing Location1532 Liberty Road Eldersburg Maryland 21784
WSI Testing Location1000 Liberty Road Sykesville Maryland 21784
WSI Testing Location2425 N. SALISBURY BLVD. Salisbury Maryland 21801
WSI Testing Location701 Naylor Mill Rd Salisbury Maryland 21801
WSI Testing Location106 Milford St Salisbury Maryland 21804
WSI Testing Location106 Milford Street Salisbury Maryland 21804
WSI Testing Location1655 Woodbrooke Dr Salisbury Maryland 21804
WSI Testing Location712 E MAIN ST Salisbury Maryland 21804
WSI Testing Location314 FRANKLIN AVE STE 404 Berlin Maryland 21811
WSI Testing Location1001 Philadelphia Avenue Ocean City Maryland 21842
WSI Testing Location12547 Ocean Gateway Ocean City Maryland 21842
WSI Testing Location12601 Coastal Highway Ocean City Maryland 21842
WSI Testing Location7408 Coastal Highway Ocean City Maryland 21842
WSI Testing Location7149 Walston Switch Road Parsonsburg Maryland 21849
WSI Testing Location1511 Ocean Highway Pocomoke City Maryland 21851
WSI Testing Location2540 Pulaski Highway North East Maryland 21901
WSI Testing Location215 North Street Elkton Maryland 21921

At WSI, we take the hassle out of drug testing, allowing you to focus on what matters most – running your business. Trust us to be your partner in maintaining a safe, productive, and compliant workplace in Maryland.