Largest anesthesia and pain groups in the US
- Groups
- 4,955
- Nurse Anesthetist, Certified Registered groups
- 2,579
- Anesthesiology groups
- 1,672
- Nurse anesthetist, certified registered specialists
- 47,621
- Anesthesiologists
- 19,892
There are 4,955 anesthesia and pain groups in the US with a Medicare PAC ID: 2,579 nurse anesthetist, certified registered, 1,672 anesthesiology, 672 pain medicine, 29 anesthesiologist assistant and 3 midwife. Anesthesia Dynamics is the largest nurse anesthetist, certified registered group, with 2,326 nurse anesthetist, certified registered specialists, and CEP America the largest anesthesiology group, with 955 anesthesiologists.
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Anesthesia Dynamics is the largest nurse anesthetist, certified registered group in the US, with 2,326 nurse anesthetist, certified registered specialists
Ranked by nurse anesthetist, certified registered specialists linked to each group whose main sub-specialty is nurse anesthetist, certified registered. US Anesthesia Partners is second with 2,019, and U.S. Anesthesia Partners third with 1,456.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
CEP America is the largest anesthesiology group in the US, with 955 anesthesiologists
Ranked by anesthesiologists linked to each group whose main sub-specialty is anesthesiology. North Shore-LIJ Anesthesiology, P.C. is second with 807, and New Jersey Healthcare Specialists, P.C. third with 432.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Alliance Spine and Pain Centers is the largest pain medicine group in the US, with 34 pain medicine specialists
Ranked by pain medicine specialists linked to each group whose main sub-specialty is pain medicine. National Spine & Pain Centers is second with 23, and National Spine & Pain Centers third with 23.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
North Atlanta Anesthesia Professionals is the largest anesthesiologist assistant group in the US, with 282 anesthesiologist assistant specialists
Ranked by anesthesiologist assistant specialists linked to each group whose main sub-specialty is anesthesiologist assistant. MAK Anesthesia is second with 250, and Piedmont Anesthesia Associates third with 245.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Public Health Solutions and Fayette County Health Department have the most midwife specialists of any US midwife group, with 1 each
Ranked by midwife specialists linked to each group whose main sub-specialty is midwife. Yaron Friedman MD, Inc. is third with 1.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Texas has the most anesthesia and pain groups, with 517
California is second with 456 and Florida third with 424. Every state with 5 or more groups has its own list.
- Texas517
- California456
- Florida424
- New York332
- Georgia231
- Tennessee183
- Illinois154
- Michigan151
- New Jersey145
- Ohio141
- Pennsylvania134
- Arizona127
- North Carolina118
- Alabama107
- Louisiana101
- Maryland100
- Arkansas93
- Oklahoma85
- Colorado82
- Indiana79
- Virginia79
- Missouri78
- Kansas71
- South Carolina71
- Kentucky67
- Nevada67
- Massachusetts63
- Mississippi61
- Washington59
- Utah56
- Idaho46
- Oregon46
- Wisconsin44
- Iowa42
- Minnesota36
- Nebraska35
- Connecticut28
- Puerto Rico24
- New Mexico23
- West Virginia23
- Wyoming23
- New Hampshire22
- South Dakota21
- Delaware20
- Alaska18
- Hawaii16
- Montana16
- North Dakota14
- Maine8
- Rhode Island8
- Vermont3
- Washington, DC2
- Guam1
- U.S. Virgin Islands1
Source: Doctors and Clinicians National Downloadable File (CMS)
Well Health Technologies has the most physicians in US anesthesia and pain groups, with 329 across 56 groups
270 parent organizations have two or more US anesthesia and pain groups. Among health systems, Ascension Health Alliance has the most groups, 38. Each clinician counts once per parent organization.
See every medical group, site and clinician under Well Health Technologies
Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.
Source: Dmand AI Org Hierarchy Data
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Dmand AI maps the owners, administrators and physician leaders at each of the 4,955 US anesthesia and pain groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
60% of US anesthesia and pain groups are independent, with no larger parent organization
A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.
US anesthesia and pain groups by ownership
- Independent2,982
- Health system or hospital641
- Platform or corporate owner1,051
- Community or government74
- Other organization207
Sites of care beyond their own offices
See the parent organization above every US group
Dmand AI maps each group to the health system, physician platform or management company above it, so you can sell to the owner, not one site.
Source: Dmand AI Org Hierarchy Data
Each US anesthesia and pain group profile shows the parent, sites, clinicians and identifiers
- Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
- Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
- Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
- Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
- Parent organizationThe health system, platform or owner above the groupOn every profile
- Every clinician and siteThe full roster and every practice locationWith a free account
- Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
- EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the US anesthesia and pain group list
| Data on this page | Source |
|---|---|
| Medical groups, specialties and sites | Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data |
| Parent organizations and independence | Dmand AI Org Hierarchy Data |
| Physicians and HCPs | Dmand AI Affiliation Data |
| Group NPI and PAC ID | NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS) |
Data last refreshed October 2026Report an inaccuracyRemove my information
Groups whose main specialty is anesthesia and pain and that have a Medicare PAC ID.
FAQ
Frequently asked questions about US anesthesia and pain groups
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is the largest nurse anesthetist, certified registered group in the US?
Anesthesia Dynamics, based in Bradenton, Florida, with 2,326 nurse anesthetist, certified registered specialists and 2,922 HCPs. US Anesthesia Partners is second with 2,019.
What is the largest anesthesiology group in the US?
CEP America, based in Emeryville, California, with 955 anesthesiologists and 1,382 HCPs. North Shore-LIJ Anesthesiology, P.C. is second with 807.
How many anesthesia and pain groups are in the US?
There are 4,955 anesthesia and pain groups in the US with a Medicare PAC ID: 2,579 nurse anesthetist, certified registered, 1,672 anesthesiology, 672 pain medicine, 29 anesthesiologist assistant and 3 midwife. Between them they have 47,621 nurse anesthetist, certified registered specialists, 19,892 anesthesiologists, 873 pain medicine specialists, 1,463 anesthesiologist assistant specialists and 3 midwife specialists.
Which state has the most anesthesia and pain groups?
Texas, with 517, followed by California with 456 and Florida with 424.
Which companies own the most anesthesia and pain groups?
By physicians, Well Health Technologies, with 329 across 56 groups, followed by Ascension Health Alliance with 105 and Northstar Anesthesia with 2,036.
How many anesthesia and pain groups are independent?
2,982, or 60%, have no larger parent organization in the Dmand AI org hierarchy. 641 belong to a health system or hospital and 1,051 to a physician platform or corporate owner.
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