> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/naics/621111/ # NAICS code 621111: Offices of Physicians (Except Mental Health Specialists) The companies classified under NAICS 621111, where they are based, how big they are and how the code maps to SIC. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** NAICS 621111 is the code for Offices of Physicians (Except Mental Health Specialists), in sector 62: Health Care and Social Assistance. The companies counted under it are mostly very small: 64% have 50 or fewer employees, and 95% are headquartered in the United States. ## What is NAICS 621111? NAICS 621111 is the code for Offices of Physicians (Except Mental Health Specialists). It belongs to sector 62: Health Care and Social Assistance. NAICS, the North American Industry Classification System, is the standard U.S. government agencies use to sort businesses by what they mainly do, and each digit narrows the category. Most of the companies counted also carry SIC 8011, Medical doctor's office, in the older SIC system (99%). - 64% of the companies counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. - The largest group is headquartered in the United States (95%). Within the US, Texas is the biggest state (10%). - Most were founded in the 2010s (31%), then the 2000s (27%). **Figure: How NAICS 621111 is built.** The code 621111 split into its parts: sector 62, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 621111. Each digit narrows the category.* ## Which companies are classified under NAICS 621111? The biggest by headcount range include Atrium Health, UCHealth, Moffitt Cancer Center, Geisinger Quality Options and Allina Health. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | [Atrium Health](https://enrich.chat/company/atrium-health/) | Charlotte, NC | 10,001+ | | [UCHealth](https://enrich.chat/company/uchealth/) | Aurora, CO | 10,001+ | | Moffitt Cancer Center | Tampa, FL | 10,001+ | | [Geisinger Quality Options](https://enrich.chat/company/geisinger-quality-options/) | Danville, PA | 10,001+ | | [Allina Health](https://enrich.chat/company/allina-health/) | Minneapolis, MN | 10,001+ | | [Mayo Clinic](https://enrich.chat/company/mayo-clinic/) | Rochester, MN | 10,001+ | | Lifespan | Providence, RI | 10,001+ | | Marshfield Clinic Health System | Marshfield, WI | 10,001+ | | [Ballad Health](https://enrich.chat/company/ballad-health/) | Johnson City, TN | 10,001+ | | Surgery Partners | Brentwood, TN | 10,001+ | | Envision Physician Services | Nashville, TN | 10,001+ | | Seton Healthcare Family | Austin, TX | 10,001+ | | [Wellpath.us](https://enrich.chat/company/wellpath-us/) | Franklin, TN | 5,001 to 10,000 | | Jps Health Network | Fort Worth, TX | 5,001 to 10,000 | | Pediatrix Medical Group | Sunrise, FL | 5,001 to 10,000 | | [ThedaCare](https://enrich.chat/company/thedacare/) | Neenah, WI | 5,001 to 10,000 | | [Avera Health](https://enrich.chat/company/avera-health/) | Sioux Falls, SD | 5,001 to 10,000 | | Valleywise Health | Phoenix, AZ | 5,001 to 10,000 | | Atrius Health | Newton, MA | 5,001 to 10,000 | | North American Partners In Anesthesia | Sunrise, FL | 5,001 to 10,000 | | Texas Oncology | Dallas, TX | 5,001 to 10,000 | | Sonic Healthcare Usa | Dallas, TX | 5,001 to 10,000 | | Lutheran Health Network | Fort Wayne, United States | 5,001 to 10,000 | | Sono Bello | Bellevue, WA | 1,001 to 5,000 | | Choc Children's | Orange, CA | 1,001 to 5,000 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## Where are NAICS 621111 companies based? Within the United States, Texas (10%), California (9%) and Florida (9%) lead. **Figure: US headquarters of companies in NAICS 621111, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 621111 headquartered in each state. The largest are Texas 10%, California 9%, Florida 9%. *Share of counted US companies in NAICS 621111 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 621111? 64% of them have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of companies in NAICS 621111.** Seven columns for the share of counted companies in NAICS 621111 in each employee range: 11 to 50 64%, 51 to 200 22%, 201 to 500 6%, 501 to 1,000 4%, 1,001 to 5,000 3%, 5,001 to 10,000 0%, 10,001+ 1%. *Share of counted companies in NAICS 621111 in each employee range.* ## How old are NAICS 621111 companies? Most were founded in the 2010s (31%), then the 2000s (27%). **Figure: When companies in NAICS 621111 were founded.** Eight columns for the share of counted companies in NAICS 621111 founded in each era: Before 1960 5%, 1960s 3%, 1970s 7%, 1980s 9%, 1990s 15%, 2000s 27%, 2010s 31%, 2020s 2%. *Share of counted companies in NAICS 621111 by the era they were founded in, for the ones that list a founding year.* ## How do NAICS 621111 companies describe themselves? A code is assigned by classification, and a company does not choose its own, so the label a company uses for itself can differ. The most common labels here are Medical Practices (59%), Hospitals and Health Care (37%) and Wellness and Fitness Services (4%). **Figure: How companies in NAICS 621111 describe themselves.** Bars for the share of counted companies in NAICS 621111 that give each industry on their public profile: Medical Practices 59%, Hospitals and Health Care 37%, Wellness and Fitness Services 4%. *Share of counted companies in NAICS 621111 by the industry they list on their public profile.* ## NAICS 621111 and the SIC system NAICS replaced SIC in 1997, but the two do not line up one to one: companies filed under one NAICS code can carry several SIC codes. These are the ones seen most. | Code | Title | Share of counted | | --- | --- | --- | | SIC 8011 | Medical doctor's office | 99% | ## Where NAICS codes come from NAICS is maintained by the U.S. Census Bureau with Canada and Mexico and revised every five years; the current edition is NAICS 2022. To check exactly what a code includes, search the [official NAICS index](https://www.census.gov/naics/) or read the Census Bureau's [guide to understanding NAICS](https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html). Pick a code by what a company mostly does, not by who it sells to. ## How do you reach the people at NAICS 621111 companies? The people to talk to are usually operations, IT and finance leaders. You can build the list from this code in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the companies with NAICS code 621111 (Offices of Physicians (Except Mental Health Specialists)) ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the operations, IT and finance leaders at companies with NAICS code 621111, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Codes next to it: [NAICS 621112: Offices of Physicians, Mental Health](https://enrich.chat/naics/621112/) Others in sector 62: [NAICS 621999: All Other Miscellaneous Ambulatory Health](https://enrich.chat/naics/621999/)[NAICS 621210: Offices of Dentists](https://enrich.chat/naics/621210/)[NAICS 621610: Home Health Care Services](https://enrich.chat/naics/621610/)[NAICS 621498: All Other Outpatient Care Centers](https://enrich.chat/naics/621498/)[NAICS 622110: General Medical and Surgical Hospitals](https://enrich.chat/naics/622110/)[NAICS 621340: Offices of Physical, Occupational and Speech](https://enrich.chat/naics/621340/)[NAICS 623990: Other Residential Care Facilities](https://enrich.chat/naics/623990/)[NAICS 621310: Offices of Chiropractors](https://enrich.chat/naics/621310/) NAICS 621111 by state: [Texas](https://enrich.chat/naics/621111/texas/)[California](https://enrich.chat/naics/621111/california/)[Florida](https://enrich.chat/naics/621111/florida/)[New York](https://enrich.chat/naics/621111/new-york/)[Georgia](https://enrich.chat/naics/621111/georgia/)[Illinois](https://enrich.chat/naics/621111/illinois/)[Tennessee](https://enrich.chat/naics/621111/tennessee/)[New Jersey](https://enrich.chat/naics/621111/new-jersey/)[Ohio](https://enrich.chat/naics/621111/ohio/)[Arizona](https://enrich.chat/naics/621111/arizona/)[Massachusetts](https://enrich.chat/naics/621111/massachusetts/)[Michigan](https://enrich.chat/naics/621111/michigan/)[Virginia](https://enrich.chat/naics/621111/virginia/)[Pennsylvania](https://enrich.chat/naics/621111/pennsylvania/) ## Frequently asked questions ### What is NAICS code 621111? NAICS 621111 is the code for Offices of Physicians (Except Mental Health Specialists), in sector 62: Health Care and Social Assistance. ### What is the SIC code for NAICS 621111 (Offices of Physicians (Except Mental Health Specialists))? 99% of the companies counted carry SIC 8011 (Medical doctor's office), but the two systems do not map one to one. ### Which companies are classified under NAICS 621111? The biggest by headcount range include Atrium Health, UCHealth, Moffitt Cancer Center, Geisinger Quality Options and Allina Health. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 621111 companies based? The largest groups are headquartered in the United States (95%) and the United Kingdom (2%). ### How big are the companies in NAICS 621111? 64% have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### Is NAICS 621111 the same as a SIC code? No. NAICS replaced SIC as the U.S. federal standard in 1997, and the two do not map one to one. The SIC code seen most among these companies is 8011. ## Try this prompt Find the people at NAICS 621111 companies ```text Use www.enrich.chat to find the operations, IT and finance leaders at companies with NAICS code 621111, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 621112](https://enrich.chat/naics/621112/) - [NAICS 621111 in Texas](https://enrich.chat/naics/621111/texas/) - [NAICS 621111 in California](https://enrich.chat/naics/621111/california/) - [NAICS 621111 in Florida](https://enrich.chat/naics/621111/florida/) - [NAICS 621111 in New York](https://enrich.chat/naics/621111/new-york/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)