Extended NAICS 621999-33 Part of official NAICS 621999 Extended NAICS 621999-33 · Parent 621999
Medical Groups Business List
Reach companies across the U.S. and Canada. Build a list by state or province, with mailing addresses and phone numbers, plus contact emails where available for U.S. companies.
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Available business records
United States
United States
- Companies 904
- Phones 842
- Websites 700
- Contact emails 5,412
Canada
- Companies 6
- Phones 6
- Websites 2
Canadian counts for this segment are available on request.
What does 621999-33 Medical Groups cover?
Medical Groups are organizations that provide medical care services to patients. These groups are composed of healthcare professionals such as physicians, nurses, and other medical staff who work together to provide comprehensive medical care to patients. Medical Groups can be specialized in a particular medical field or can offer a range of medical services to patients. They can be found in various settings such as hospitals, clinics, and private practices.
Official parent industry: NAICS 621999 - All Other Miscellaneous Ambulatory Health Care Services
Industry Examples & Products
Examples of products and services associated with companies in this industry.
- Primary care medical group
- Pediatric medical group
- Cardiology medical group
- Oncology medical group
- Dermatology medical group
- Women's health medical group
- Orthopedic medical group
- Mental health medical group
- Urgent care medical group
- Rehabilitation medical group
Common Equipment
Machinery these companies typically run. Equipment, parts and repair suppliers use this list to reach them.
- Electronic Health Record (EHR) systems
- Medical billing software
- Medical imaging equipment (e.g. X-ray machines, MRI machines)
- Medical diagnostic equipment (e.g. blood pressure monitors, glucose meters)
- Medical laboratory equipment (e.g. microscopes, centrifuges)
- Medical sterilization equipment (e.g. autoclaves)
- Medical surgical instruments (e.g. scalpels, forceps)
- Medical examination tables
- Medical carts and trolleys
- Medical waste disposal equipment
Website-reviewed records can include equipment details.
What your list can include
How to request your free sample
See how well the data matches your targeting before you decide to order.
Available for this segment: 904 U.S. companies · 5,412 contact emails
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Sample preview · details masked
- Company: name, status, HQ/branch, year opened, public/private
- Location: address, county, metro, latitude & longitude
- Contacts: name, title, email (with verification status), phone
- Firmographics: employees, sales volume, square footage, fleet size
- Digital: website, LinkedIn and social profiles
- Classification: SIC & NAICS (primary and secondary)
Some fields are available for selected records. See every field in the Data Dictionary
✓ Website-reviewed data included with purchased U.S. lists at no extra charge · How we review →
- Tell us who you want to reachChoose your industries, locations, company sizes and other targeting preferences.
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Industry History
The Medical Groups industry has a long history dating back to the early 20th century when physicians began to form groups to share resources and reduce costs. In the 1930s, the American Medical Association (AMA) began to promote the concept of group practice, and by the 1950s, medical groups had become a common practice. In the 1960s, the introduction of Medicare and Medicaid led to a significant increase in demand for medical services, which further fueled the growth of medical groups. In recent years, medical groups have continued to evolve, with the adoption of electronic health records and the increasing use of telemedicine.
In the United States, medical groups have undergone significant changes in recent years. The Affordable Care Act (ACA) of 2010 led to the formation of accountable care organizations (ACOs), which are groups of healthcare providers that work together to coordinate care for patients. The ACA also led to the adoption of value-based care, which incentivizes providers to focus on patient outcomes rather than the volume of services provided. In addition, the rise of consumerism in healthcare has led to the development of patient-centered medical homes (PCMHs), which are medical practices that focus on providing coordinated, comprehensive care to patients. These changes have led to a shift towards more integrated and coordinated care, with medical groups playing a key role in this transformation.
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Cited in research and government
Referenced by CDC/NIOSH, Columbia University, and other academic and government sources since 1998. See citations
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U.S. and Canadian companies across SIC and NAICS industries.
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Your free sample includes example companies matching your target industry, with available business details such as company names, locations, phone numbers, and websites. You can review the data before deciding to purchase. Email addresses are not included in free samples.
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Our business database is regularly maintained and updated. Each purchased list is checked again before delivery, including website and business-activity reviews where available, to help identify outdated or mismatched records. Read our data verification methodology
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Business lists are available in CSV, Excel-compatible, and text formats. Other delivery options may be available depending on your requirements. We'll confirm the format before preparing your list.
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Yes. Business email contacts are available by request for eligible U.S. lists, where available. Canadian business lists do not include contact email addresses. You're responsible for ensuring your outreach complies with applicable email marketing laws.
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Every business list is prepared specifically for your order and reviewed by our team before delivery.
We evaluate companies against your specific targeting criteria, review available company websites and business information, and score leads for relevance to your target market or campaign.
Each purchased list is re-scanned on the day of delivery to help identify outdated, closed, or misclassified businesses.
Our Website-Reviewed & Enriched service is included with purchased U.S. business lists at no additional charge, helping you receive more relevant, actionable company data. It does not promise that every field is perfect or individually verified.
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NAICS classification hierarchy
Five official Census levels, from sector to national industry, plus a commercial extended level.
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Extended 8-digit NAICS 621999-33 Medical Groups
621999-33 is an 8-digit commercial segment used for business lists, not an official Census NAICS code. For government forms and filings, use NAICS 621999. Classification methodology →
About this classification
This page represents a commercial Extended NAICS industry classification used for business targeting, industry research, data analysis, and company classification. It is not an official U.S. Census Bureau NAICS code. Its parent industry is an official NAICS classification defined by the U.S. Census Bureau. Classifications are reviewed regularly by SICCODE.com's Classification Review Team.
SICCODE.com classifies companies under both Extended NAICS and Extended SIC. A company may appear in both classification systems, so company counts should not be added together without deduplication.