NAICS 621 - Ambulatory Health Care Services
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Related NAICS Codes for NAICS 621
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What is NAICS 621
NAICS code 621 covers the Ambulatory Health Care Services subsector, which includes establishments that provide outpatient health care services directly or indirectly to patients who do not require inpatient care. This subsector primarily focuses on health practitioners delivering medical, diagnostic, and therapeutic services in settings that typically do not have extensive inpatient facilities or significant equipment investments. Businesses operating under this code include a range of outpatient care providers such as physician offices, outpatient care centers, and specialized clinics. Government agencies contract for these services to ensure access to essential outpatient medical care for various populations, including military personnel, veterans, federal employees, and underserved communities. These services are vital for maintaining public health, providing timely medical interventions, and supporting preventive health initiatives without the need for hospitalization. The ambulatory nature allows for cost-effective treatment options that reduce the burden on inpatient facilities and improve patient outcomes through early intervention and continuous care.
Industry Classification for NAICS 621
Industries in the Ambulatory Health Care Services subsector provide health care services directly or indirectly to ambulatory patients and do not usually provide inpatient services. Health practitioners in this subsector provide outpatient services, with the facilities and equipment not usually being the most significant part of the production process.
Breakdown for NAICS 621
- Includes outpatient health care providers excluding inpatient services.
- Facilities typically have limited inpatient capabilities and minimal equipment focus.
- Covers a broad range of medical, diagnostic, and therapeutic outpatient services.
- Government contracting focuses on veterans, military, and underserved populations.
- Small to large-scale contracts supporting flexible service delivery models.
Included Activities for NAICS 621
- Providing outpatient medical examinations and treatments.
- Delivering diagnostic imaging and laboratory testing services.
- Offering physical therapy and rehabilitation services.
- Administering preventive health screenings and immunizations.
- Conducting telehealth consultations and remote patient monitoring.
- Providing mental health counseling and substance abuse treatment.
- Operating specialized outpatient surgical centers.
- Coordinating outpatient care for chronic disease management.
Business Types for NAICS 621
- Physician and surgeon offices
- Outpatient care centers and clinics
- Physical therapy and rehabilitation providers
- Diagnostic imaging centers
- Mental health and substance abuse treatment facilities
- Telehealth service providers
Government Buyers for NAICS 621
Government agencies that commonly procure ambulatory health care services include the Department of Veterans Affairs (VA), the Department of Defense (DoD), the Indian Health Service (IHS), and the Department of Health and Human Services (HHS). These entities require ambulatory services to support active-duty military personnel, veterans, Native American populations, and federal beneficiaries who need outpatient medical care, including preventive screenings, diagnostic testing, and specialized treatments. Additionally, state and local government health departments may contract ambulatory care providers to support public health programs and emergency response initiatives. The contracting for ambulatory health care services enables these agencies to fulfill their mission-critical responsibilities by ensuring timely, accessible, and effective outpatient care outside of hospital settings.
Contract Types & Procurement for NAICS 621
Contracts within NAICS 621 typically utilize firm-fixed-price and indefinite-delivery/indefinite-quantity (IDIQ) arrangements to maintain flexibility in service delivery. Procurement methods often include competitive sealed bidding and negotiated procurements, depending on the complexity and urgency of the services required. Contract values vary widely based on scope, ranging from small-scale service agreements for specific outpatient clinics to multi-million dollar contracts supporting comprehensive outpatient care programs. Government contracts may also include task orders for specialized services such as diagnostic imaging, physical therapy, or mental health counseling, allowing agencies to tailor services to evolving health care needs. Performance-based contracting is increasingly common to ensure quality outcomes and cost-efficiency in delivering ambulatory health care services.
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