NAICS 621493 - Freestanding Ambulatory Surgical and Emergency Centers

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What is NAICS 621493

NAICS code 621493 encompasses establishments primarily engaged in providing freestanding ambulatory surgical services and emergency care on an outpatient basis. This sector includes facilities equipped with specialized operating and recovery rooms, as well as advanced medical equipment such as anesthetic and X-ray machines. Businesses operating under this code perform a wide range of outpatient surgical procedures, including but not limited to orthopedic and cataract surgeries, as well as emergency care treatments like setting broken bones and managing trauma injuries. These centers focus on delivering efficient, immediate care without the need for hospital admission, emphasizing convenience and timely medical intervention.

Government agencies contract with providers under NAICS 621493 to ensure accessible, high-quality ambulatory surgical and emergency services for populations such as military personnel, veterans, and underserved communities. These contracts support the expansion of outpatient healthcare infrastructure, reduce hospital burdens, and improve patient outcomes by facilitating prompt surgical and emergency care in specialized freestanding centers. Contracting in this sector is critical for public health preparedness, emergency response, and maintaining continuity of care outside traditional hospital settings.

Industry Classification for NAICS 621493

This U.S. industry comprises establishments with physicians and other medical staff primarily engaged in (1) providing surgical services (e.g., orthoscopic and cataract surgery) on an outpatient basis or (2) providing emergency care services (e.g., setting broken bones, treating lacerations, or tending to patients suffering injuries as a result of accidents, trauma, or medical conditions necessitating immediate medical care) on an outpatient basis. Outpatient surgical establishments have specialized facilities, such as operating and recovery rooms, and specialized equipment, such as anesthetic or X-ray equipment.

Illustrative Examples:

  • Freestanding ambulatory surgical centers and clinics
  • Freestanding emergency medical centers and clinics
  • Freestanding trauma centers (except hospitals)
  • Urgent medical care centers and clinics (except hospitals)

Breakdown for NAICS 621493

  • Includes freestanding outpatient surgical and emergency care facilities.
  • Facilities have specialized operating and recovery rooms with advanced equipment.
  • Covers surgical procedures like orthopedic and cataract surgeries performed on an outpatient basis.
  • Encompasses emergency treatments such as fracture setting and trauma care.
  • Primarily serves patients requiring immediate medical attention without hospital admission.
  • Typical establishments include ambulatory surgical centers, urgent care clinics, and trauma centers (excluding hospitals).

Included Activities for NAICS 621493

  • Performing outpatient surgical procedures including arthroscopy and cataract removal.
  • Providing emergency medical treatment for injuries such as fractures and lacerations.
  • Operating specialized medical equipment like anesthetic and diagnostic imaging devices.
  • Managing patient recovery in ambulatory surgical recovery rooms.
  • Delivering urgent care services for non-life-threatening medical conditions.
  • Coordinating with hospitals for patient referrals and follow-up care.
  • Maintaining compliance with healthcare regulations and quality standards.
  • Supporting trauma care and immediate medical interventions outside hospital settings.

Business Types for NAICS 621493

  • Freestanding ambulatory surgical centers
  • Freestanding emergency medical clinics
  • Urgent care centers
  • Freestanding trauma care centers (non-hospital)
  • Outpatient surgical clinics
  • Specialty outpatient medical facilities

Subcategories for NAICS 621493

  • Ambulatory surgical centers and clinics, freestanding
  • Emergency medical centers and clinics, freestanding
  • Freestanding ambulatory surgical centers and clinics
  • Freestanding emergency medical centers and clinics
  • Laser surgery centers, freestanding
  • Trauma centers (except hospitals), freestanding
  • Urgent medical care centers and clinics (except hospitals), freestanding

Government Buyers for NAICS 621493

Federal agencies such as the Department of Veterans Affairs (VA), the Department of Defense (DoD), and the Indian Health Service (IHS) are primary buyers of services under NAICS 621493. These agencies require ambulatory surgical and emergency care facilities to support active duty military, veterans, and Native American populations, often in locations where hospital access is limited. State and local government health departments may also procure these services to supplement public health infrastructure and provide urgent care options. The need for rapid, specialized outpatient treatment makes these services vital for government healthcare programs focused on readiness, critical care, and cost-effective medical delivery.

Contract Types & Procurement for NAICS 621493

Contracts awarded under NAICS 621493 typically include firm-fixed-price agreements for the provision of outpatient surgical and emergency services, as well as indefinite-delivery/indefinite-quantity (IDIQ) contracts for ongoing care support. Procurement methods often involve competitive sealed proposals and requests for quotations, especially for establishing or expanding ambulatory surgical centers within government healthcare systems. Contract values vary widely depending on the scope and scale of services, ranging from smaller clinic service contracts to multimillion-dollar agreements for large-scale ambulatory surgical facility operations. Government contracting officers prioritize providers with strong clinical capabilities, regulatory compliance, and operational readiness.

Details for NAICS 621493

Explore the hierarchy and related codes for this industry

NAICS Code Industry Title
621 Ambulatory Health Care Services
6211 Offices of Physicians
62111 Offices of Physicians
621111 Offices of Physicians (except Mental Health Specialists)
621112 Offices of Physicians, Mental Health Specialists
6212 Offices of Dentists
62121 Offices of Dentists
621210 Offices of Dentists
6213 Offices of Other Health Practitioners
62131 Offices of Chiropractors
621310 Offices of Chiropractors
62132 Offices of Optometrists
621320 Offices of Optometrists
62133 Offices of Mental Health Practitioners (except Physicians)
621330 Offices of Mental Health Practitioners (except Physicians)
62134 Offices of Physical, Occupational and Speech Therapists, and Audiologists
621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists
62139 Offices of All Other Health Practitioners
621391 Offices of Podiatrists
621399 Offices of All Other Miscellaneous Health Practitioners
6214 Outpatient Care Centers
62141 Family Planning Centers
621410 Family Planning Centers
62142 Outpatient Mental Health and Substance Abuse Centers
621420 Outpatient Mental Health and Substance Abuse Centers
62149 Other Outpatient Care Centers
621491 HMO Medical Centers
621492 Kidney Dialysis Centers
621493 Current Freestanding Ambulatory Surgical and Emergency Centers
621498 All Other Outpatient Care Centers
6215 Medical and Diagnostic Laboratories
62151 Medical and Diagnostic Laboratories
621511 Medical Laboratories
621512 Diagnostic Imaging Centers
6216 Home Health Care Services
62161 Home Health Care Services
621610 Home Health Care Services
6219 Other Ambulatory Health Care Services
62191 Ambulance Services
621910 Ambulance Services
62199 All Other Ambulatory Health Care Services
621991 Blood and Organ Banks
621999 All Other Miscellaneous Ambulatory Health Care Services
622 Hospitals
6221 General Medical and Surgical Hospitals
62211 General Medical and Surgical Hospitals
622110 General Medical and Surgical Hospitals
6222 Psychiatric and Substance Abuse Hospitals
62221 Psychiatric and Substance Abuse Hospitals
622210 Psychiatric and Substance Abuse Hospitals
6223 Specialty (except Psychiatric and Substance Abuse) Hospitals
62231 Specialty (except Psychiatric and Substance Abuse) Hospitals
622310 Specialty (except Psychiatric and Substance Abuse) Hospitals
623 Nursing and Residential Care Facilities
6231 Nursing Care Facilities (Skilled Nursing Facilities)
62311 Nursing Care Facilities (Skilled Nursing Facilities)
623110 Nursing Care Facilities (Skilled Nursing Facilities)
6232 Residential Intellectual and Developmental Disability, Mental Health, and Substance Abuse Facilities
62321 Residential Intellectual and Developmental Disability Facilities
623210 Residential Intellectual and Developmental Disability Facilities
62322 Residential Mental Health and Substance Abuse Facilities
623220 Residential Mental Health and Substance Abuse Facilities
6233 Continuing Care Retirement Communities and Assisted Living Facilities for the Elderly
62331 Continuing Care Retirement Communities and Assisted Living Facilities for the Elderly
623311 Continuing Care Retirement Communities
623312 Assisted Living Facilities for the Elderly
6239 Other Residential Care Facilities
62399 Other Residential Care Facilities
623990 Other Residential Care Facilities
624 Social Assistance
6241 Individual and Family Services
62411 Child and Youth Services
624110 Child and Youth Services
62412 Services for the Elderly and Persons with Disabilities
624120 Services for the Elderly and Persons with Disabilities
62419 Other Individual and Family Services
624190 Other Individual and Family Services
6242 Community Food and Housing, and Emergency and Other Relief Services
62421 Community Food Services
624210 Community Food Services
62422 Community Housing Services
624221 Temporary Shelters
624229 Other Community Housing Services
62423 Emergency and Other Relief Services
624230 Emergency and Other Relief Services
6243 Vocational Rehabilitation Services
62431 Vocational Rehabilitation Services
624310 Vocational Rehabilitation Services
6244 Child Care Services
62441 Child Care Services
624410 Child Care Services

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