If you own or operate a healthcare services business and need your NAICS code—whether it’s 621111 for a physician practice, 621420 for a mental health clinic, or 541611 if you are a healthcare consultant—here is your answer right away.
Also Read: NAICS Code for Mental Health Counselor
The primary NAICS code for a standard medical practice is 621111, classified under Offices of Physicians (except Mental Health) in the Health Care and Social Assistance sector. However, “healthcare services” is a massive umbrella term that encompasses everything from private doctor offices to massive inpatient hospitals, and even extends to the consulting firms that advise them. The right code for your business depends entirely on the specific medical services you provide, or whether you provide advice instead of direct patient care. This page covers the relevant codes so you can identify the one that fits.
| Field | Details |
|---|---|
| NAICS Code | 621111 |
| Industry Title | Offices of Physicians (except Mental Health) |
| Sector | 62 (Health Care and Social Assistance) |
| Industry Group | 6211 |
| Last Updated | 2022 NAICS Edition (Next NAICS Edition will come in 2027) |
What Does NAICS Code 621111 Cover?
According to the official 2022 NAICS data, code 621111 covers establishments primarily engaged in providing medical care by licensed physicians.
In simple terms, this is the foundational code for outpatient medical care. It covers the places where patients go to receive diagnosis and treatment from a doctor without being admitted to a hospital bed overnight. For healthcare businesses, this includes:
- Private practices for family medicine, internal medicine, and pediatricians
- Specialist physician offices (e.g., cardiologists, dermatologists, orthopedic surgeons)
- Diagnostic imaging centers and medical laboratories
- Urgent care centers and walk-in clinics where patients are seen by a physician
- Outpatient surgical centers
The important distinction here is outpatient care. This code covers the clinical, face-to-face treatment of patients in a clinical setting, but it specifically excludes inpatient hospitals, mental health specialists, dentists, and allied health professionals.
Does My Healthcare Business Qualify for Code 621111?
Your healthcare business qualifies for NAICS code 621111 if:
- You operate a private practice where licensed medical doctors see patients on an outpatient basis
- Your main source of revenue comes from evaluating, diagnosing, and treating patients
- You operate an outpatient clinic or diagnostic imaging facility staffed by physicians
Your business may not qualify if:
- You operate a hospital or surgical center where patients are admitted for overnight stays, which falls under 622110 (General Medical and Surgical Hospitals) or 622120 (Psychiatric and Substance Abuse Hospitals) in Sector 622 (Hospitals) instead
- You operate a mental health practice staffed by counselors, therapists, or psychologists, which falls under 621330 (Offices of Mental Health Practitioners) instead
- You operate a dental practice, which falls under 621210 (Offices of Dentists) instead
- You operate a chiropractic office, which falls under 621310 (Offices of Chiropractors) instead
- You operate a physical, occupational, or speech therapy practice, which falls under 621340 (Offices of Physical, Occupational and Speech Therapists, and Audiologists) instead
- You are a consulting firm that advises healthcare organizations on business operations, billing, or administration, which falls under 541611 (Administrative Management and General Management Consulting Services) instead
When your healthcare business sits between two codes, always classify each specific department or clinic location based on the type of provider staffing it.
The Difference Between Healthcare Services and Healthcare Consulting
Because the user specifically asked for “healthcare consulting,” it is vital to draw a hard line between providing medical care and providing business advice.
If your business employs doctors, nurses, or allied health professionals to physically treat patients, you use a code in Sector 62 (Health Care and Social Assistance), such as 621111. The federal government classifies you based on the actual medical treatment you provide.
If your business employs business analysts, revenue cycle management experts, or healthcare administrators to advise other medical practices on how to improve their operations, you do not use a healthcare service code. You use 541611 (Administrative Management and General Management Consulting Services). The government classifies you based on the management advice you provide, not the industry of your clients.
Where Will You Need This Code?
Your NAICS code appears in more places than most healthcare administrators expect. Here is where these 621 codes will be required:
- Insurance Credentialing. This is highly critical. When you apply to be an in-network provider for insurance panels like Blue Cross, Aetna, or UnitedHealthcare, the insurance company requires your exact NAICS code to ensure you are placed in the correct network tier and fee schedule.
- Medicare and Medicaid Enrollment. If you treat Medicare or Medicaid patients, CMS requires your exact NAICS code during provider enrollment to track healthcare utilization data accurately and process claims correctly.
- Medical Malpractice Insurance. Insurance providers use your NAICS code to calculate your Medical Professional Liability (Malpractice) premiums. A cardiologist (621111) and an occupational therapist (621340) carry entirely different risk profiles.
- EHR/EMR Software Applications. Electronic Health Record vendors require your NAICS code during the software purchasing and implementation process to tailor their platform to your specific clinic type.
- *State Licensing and Compliance. State medical boards use these codes when you apply for your facility license, professional license, or DEA registration.
- Business Bank Accounts. Many banks ask for your NAICS code when opening a commercial checking account to ensure your business is classified properly within the heavily regulated healthcare sector.
621111 in the NAICS Hierarchy
Every NAICS code sits inside a structured hierarchy. Here is exactly where 621111 fits:
| Level | Code | Title |
|---|---|---|
| Sector | 62 | Health Care and Social Assistance |
| Subsector | 621 | Ambulatory Health Care Services |
| Industry Group | 6211 | Offices of Health Practitioners |
| NAICS Industry | 62111 | Offices of Physicians (except Mental Health) |
| National Industry | 621111 | Offices of Physicians (except Mental Health) |
Frequently Asked Questions
What is the NAICS code for a hospital?
If your business provides inpatient care and keeps patients overnight, you do not use Sector 621 (Ambulatory). You use 622110 (General Medical and Surgical Hospitals) or 622120 (Psychiatric and Substance Abuse Hospitals). These codes fall under Sector 622 (Hospitals).
What is the NAICS code for a behavioral health or mental health clinic?
It depends on who staffs your clinic. If you operate a specialized outpatient mental health or substance abuse treatment center staffed by counselors and therapists, you use 621420 (Outpatient Mental Health and Substance Abuse Centers). If you operate a private practice staffed by psychologists or licensed clinical social workers providing talk therapy, you use 621330 (Offices of Mental Health Practitioners).
What is the NAICS code for a healthcare consulting firm?
If your firm provides strategic, operational, or financial consulting to doctors, hospitals, or health systems, you do not use a Sector 62 code. You use 541611 (Administrative Management and General Management Consulting Services) because your primary service is business advice, not direct patient care.
What is the NAICS code for physical, occupational, or speech therapy?
If your practice is staffed by physical therapists (PTs), occupational therapists (OTs), or speech-language pathologists (SLPs), your correct code is 621340 (Offices of Physical, Occupational and Speech Therapists, and Audiologists).
What is the NAICS code for a chiropractic office?
Chiropractors have their own specific classification to separate them from standard medical doctors. If you operate a chiropractic office, your NAICS code is 621310 (Offices of Chiropractors).
What is the NAICS code for a dental office?
Dentists also have a specific, dedicated classification. If you operate a dental practice, your correct code is 621210 (Offices of Dentists).