Largest rheumatology, allergy and immunology groups in the US
- Groups
- 373
- Allergy and Immunology groups
- 373
- Allergists
- 1,466
- Physicians
- 1,722
- More than one site
- 230
There are 373 rheumatology, allergy and immunology groups in the US with a Medicare PAC ID. Allergy Partners of Crestview Hills is the largest, with 125 physicians.
Find the decision makers at all 373 US rheumatology, allergy and immunology groups
Work emails and mobile numbers for practice owners, administrators and physician leaders, found through healthcare waterfall enrichment, with a free Dmand AI account.
Allergy Partners of Crestview Hills is the largest rheumatology, allergy and immunology group in the US, with 125 physicians
Ranked by physicians linked to each group. Family Allergy & Asthma is second with 83, and Atlanta Allergy & Asthma third with 40. 1 US group has 100 or more physicians.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Texas has the most rheumatology, allergy and immunology groups, with 45
California is second with 39 and Florida third with 27. Every state with 5 or more groups has its own list.
- Texas45
- California39
- Florida27
- Michigan24
- New York22
- Pennsylvania19
- Massachusetts18
- Illinois13
- Georgia12
- Maryland11
- New Jersey11
- Virginia10
- Ohio9
- Arizona8
- Alabama7
- Colorado7
- Connecticut7
- Missouri7
- Tennessee7
- Washington6
- South Carolina5
- Idaho4
- Indiana4
- Louisiana4
- Arkansas3
- Kansas3
- Kentucky3
- North Carolina3
- Nebraska3
- Nevada3
- Oklahoma3
- Oregon3
- Wisconsin3
- Hawaii2
- Minnesota2
- Mississippi2
- New Mexico2
- Rhode Island2
- Utah2
- Alaska1
- Iowa1
- Maine1
- New Hampshire1
- Puerto Rico1
- South Dakota1
- Vermont1
- West Virginia1
Source: Doctors and Clinicians National Downloadable File (CMS)
Allervie Health has the most physicians in US rheumatology, allergy and immunology groups, with 61 across 13 groups
8 parent organizations have two or more US rheumatology, allergy and immunology groups. Each clinician counts once per parent organization.
See every medical group, site and clinician under Allervie Health
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
For sales teams
Dmand AI maps the owners, administrators and physician leaders at each of the 373 US rheumatology, allergy and immunology groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
85% of US rheumatology, allergy and immunology 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 rheumatology, allergy and immunology groups by ownership
- Independent318
- Health system or hospital6
- Platform or corporate owner44
- Other organization5
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 rheumatology, allergy and immunology 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 rheumatology, allergy and immunology 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 rheumatology, allergy and immunology and that have a Medicare PAC ID.
FAQ
Frequently asked questions about US rheumatology, allergy and immunology groups
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
How many rheumatology, allergy and immunology groups are in the US?
There are 373 rheumatology, allergy and immunology groups in the US with a Medicare PAC ID. Between them they have 1,466 allergists.
Which state has the most rheumatology, allergy and immunology groups?
Texas, with 45, followed by California with 39 and Florida with 27.
Which companies own the most rheumatology, allergy and immunology groups?
By physicians, Allervie Health, with 61 across 13 groups, followed by Allergy Partners with 165 and Allergy & ENT Associates with 60.
How many rheumatology, allergy and immunology groups are independent?
318, or 85%, have no larger parent organization in the Dmand AI org hierarchy. 6 belong to a health system or hospital and 44 to a physician platform or corporate owner.
Dmand AI
Find the right contacts at every US rheumatology, allergy and immunology group
Search 373 groups by size and parent organization, with the physicians and leaders at each one.
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