Covenant Health

Laboratory Services

St. Joseph Hospital provides laboratory services for outpatients at six convenient locations. Walk-ins are welcome. Services include: phlebotomy, histology, blood bank, chemistry, hematology/urinalysis, coagulation, serology, and microbiology.

The hospital lab also tests samples obtained at our other laboratory locations and physician offices, as well as through visiting nurse agencies.

Medical Director Constance Buttlar, M.D. oversees the lab's policies, procedures, and clinical work. St. Joseph Hospital laboratory facilities are accredited by the College of American Pathologists' Accreditation and Laboratory Improvement Program (#1168101). Rigorous accreditation processes involve on-site reviews for quality control, staff qualifications, equipment, safety, and laboratory management to ensure outstanding service to our patients and clients.

Our Primary Reference Laboratory

St. Joseph Hospital Laboratory handles the vast majority of its testing, while utilizing Mayo Medical Laboratories for testing needs that require additional expertise. Mayo Medical Laboratories, the reference laboratory for Mayo Clinic, is a distinctive leader in the field of "esoteric" testing and offers consultations with its world-renowned physicians and scientists. This collaboration among physicians further strengthen our efforts to provide exception laboratory services and patient care to the region we serve.

Hours and Locations:

St. Joseph Hospital Laboratory and Drawing Stations are closed on all major holidays. 

St. Joseph Hospital, First Floor, Atrium
172 Kinsley Street
Nashua, NH 03060
Monday through Friday, 6:30 a.m. - 6:30 p.m.
Saturdays, 6:30 a.m. - 12:30 p.m.

Amherst Drawing Station
460 Amherst Street
Nashua, NH 03063
Monday through Friday, 7:00 a.m. - 3:00 p.m.
Closed: 12:00 noon to 12:30 p.m.

Hudson Lab Drawing Station
208 Robinson Road
Hudson, NH 03051
Monday through Friday, 7:30 a.m. - 4:00p.m.
Closed: 12:15 p.m. - 1:15 p.m.

Merrimack Lab Drawing Station
382 Daniel Webster Highway
Merrimack, NH 03054
Monday through Friday, 7:30 a.m. - 11:30 a.m.

Milford Medical Center
442 Nashua Street
Milford, NH 03055
Monday through Friday, 7:00 a.m. - 4:00 p.m. 
Saturday, 7:00 a.m. - 12:00 noon 

Nashua South Draw Station
173 Daniel Webster Highway South
Nashua, NH 03060
Monday through Friday, 8:00 a.m. - 4:30 p.m.
Closed: 12:15 p.m. - 1:15 p.m.

Contact Information

Customer Support
Tel: (603) 579-5679, Option 3

Web Resources

Online Laboratory Test Catalog

Lab Tests Online


File Size: 1.2 MB
Remote access is for authorized physicians and employees only.