Description
Expert Witness

Possible NAICS Codes
621111 – Offices of Physicians (except Mental Health Specialists)
541199 – All Other Legal Services
541611 – Administrative Management and General Management Consulting Services
541990 – All Other Professional, Scientific, and Technical Services
541690 – Other Scientific and Technical Consulting Services
531320 – Offices of Real Estate Appraisers
541330 – Engineering Services
621112 – Offices of Physicians, Mental Health Specialists
541618 – Other Management Consulting Services

Description
Medical/Psychiatric Consultation Services

Possible NAICS Codes
621111 – Offices of Physicians (except Mental Health Specialists)
621112 – Offices of Physicians, Mental Health Specialists
622110 – General Medical and Surgical Hospitals
561320 – Temporary Help Services
541611 – Administrative Management and General Management Consulting Services
621330 – Offices of Mental Health Practitioners (except Physicians)

Description
Other Medical Services

Possible NAICS Codes
622110 – General Medical and Surgical Hospitals
561320 – Temporary Help Services
621111 – Offices of Physicians (except Mental Health Specialists)
621399 – Offices of All Other Miscellaneous Health Practitioners
532283 – Home Health Equipment Rental
621910 – Ambulance Services
621999 – All Other Miscellaneous Ambulatory Health Care Services
621112 – Offices of Physicians, Mental Health Specialists
621498 – All Other Outpatient Care Centers
621511 – Medical Laboratories

Description
General Health Care Services

Possible NAICS Codes
622110 – General Medical and Surgical Hospitals
561320 – Temporary Help Services
621498 – All Other Outpatient Care Centers
621111 – Offices of Physicians (except Mental Health Specialists)
524114 – Direct Health and Medical Insurance Carriers
541990 – All Other Professional, Scientific, and Technical Services
621511 – Medical Laboratories
621610 – Home Health Care Services
621999 – All Other Miscellaneous Ambulatory Health Care Services
325412 – Pharmaceutical Preparation Manufacturing

Description
Radiology Services

Possible NAICS Codes
561320 – Temporary Help Services
621512 – Diagnostic Imaging Centers
541512 – Computer Systems Design Services
621111 – Offices of Physicians (except Mental Health Specialists)
622110 – General Medical and Surgical Hospitals
611310 – Colleges, Universities, and Professional Schools
334519 – Other Measuring and Controlling Device Manufacturing
621999 – All Other Miscellaneous Ambulatory Health Care Services
621399 – Offices of All Other Miscellaneous Health Practitioners

Description
Evaluation and Screening

Possible NAICS Codes
621111 – Offices of Physicians (except Mental Health Specialists)
621511 – Medical Laboratories
621340 – Offices of Physical, Occupational and Speech Therapists, and Audiologists
621999 – All Other Miscellaneous Ambulatory Health Care Services
621498 – All Other Outpatient Care Centers
621491 – HMO Medical Centers
621610 – Home Health Care Services
621399 – Offices of All Other Miscellaneous Health Practitioners
561320 – Temporary Help Services
541380 – Testing Laboratories and Services

Description
Internal Medicine Services

Possible NAICS Codes
561320 – Temporary Help Services
621111 – Offices of Physicians (except Mental Health Specialists)
611310 – Colleges, Universities, and Professional Schools
621112 – Offices of Physicians, Mental Health Specialists
621492 – Kidney Dialysis Centers
622110 – General Medical and Surgical Hospitals
325412 – Pharmaceutical Preparation Manufacturing
621999 – All Other Miscellaneous Ambulatory Health Care Services

Description
Physical Medicine and Rehabilitation Services

Possible NAICS Codes
621340 – Offices of Physical, Occupational and Speech Therapists, and Audiologists
621111 – Offices of Physicians (except Mental Health Specialists)
622110 – General Medical and Surgical Hospitals
561320 – Temporary Help Services
621399 – Offices of All Other Miscellaneous Health Practitioners
611692 – Automobile Driving Schools
611699 – All Other Miscellaneous Schools and Instruction
519290 – Web Search Portals and All Other Information Services
621420 – Outpatient Mental Health and Substance Abuse Centers
621310 – Offices of Chiropractors

Description
Other Professional Services

Possible NAICS Codes
493190 – Other Warehousing and Storage
541611 – Administrative Management and General Management Consulting Services
541990 – All Other Professional, Scientific, and Technical Services
541690 – Other Scientific and Technical Consulting Services
541330 – Engineering Services
711510 – Independent Artists, Writers, and Performers
541519 – Other Computer Related Services

Description
Cardio-Vascular Services

Possible NAICS Codes
621111 – Offices of Physicians (except Mental Health Specialists)
611310 – Colleges, Universities, and Professional Schools
561320 – Temporary Help Services
621999 – All Other Miscellaneous Ambulatory Health Care Services
621399 – Offices of All Other Miscellaneous Health Practitioners
621511 – Medical Laboratories
621512 – Diagnostic Imaging Centers
622110 – General Medical and Surgical Hospitals
541990 – All Other Professional, Scientific, and Technical Services
811210 – Electronic and Precision Equipment Repair and Maintenance

Description
Surgery Services

Possible NAICS Codes
611310 – Colleges, Universities, and Professional Schools
561320 – Temporary Help Services
622110 – General Medical and Surgical Hospitals
621991 – Blood and Organ Banks
334510 – Electromedical and Electrotherapeutic Apparatus Manufacturing
621111 – Offices of Physicians (except Mental Health Specialists)
621999 – All Other Miscellaneous Ambulatory Health Care Services
621399 – Offices of All Other Miscellaneous Health Practitioners
541990 – All Other Professional, Scientific, and Technical Services
339112 – Surgical and Medical Instrument Manufacturing

Description
Pathology Services

Possible NAICS Codes
621511 – Medical Laboratories
561320 – Temporary Help Services
621111 – Offices of Physicians (except Mental Health Specialists)
621991 – Blood and Organ Banks
611310 – Colleges, Universities, and Professional Schools
621999 – All Other Miscellaneous Ambulatory Health Care Services
622110 – General Medical and Surgical Hospitals
621399 – Offices of All Other Miscellaneous Health Practitioners
334516 – Analytical Laboratory Instrument Manufacturing
541380 – Testing Laboratories and Services

Description
Neurology Services

Possible NAICS Codes
611310 – Colleges, Universities, and Professional Schools
621111 – Offices of Physicians (except Mental Health Specialists)
621999 – All Other Miscellaneous Ambulatory Health Care Services
622110 – General Medical and Surgical Hospitals
621399 – Offices of All Other Miscellaneous Health Practitioners
334510 – Electromedical and Electrotherapeutic Apparatus Manufacturing
561320 – Temporary Help Services

Description
Gastroenterology Services

Possible NAICS Codes
621111 – Offices of Physicians (except Mental Health Specialists)
611310 – Colleges, Universities, and Professional Schools
622110 – General Medical and Surgical Hospitals
561320 – Temporary Help Services
611420 – Computer Training
541519 – Other Computer Related Services

Description
Pediatric Services

Possible NAICS Codes
621111 – Offices of Physicians (except Mental Health Specialists)
561320 – Temporary Help Services
622110 – General Medical and Surgical Hospitals
541690 – Other Scientific and Technical Consulting Services