Preferred Provider Organization
3,091 active US providers register Preferred Provider Organization as their primary taxonomy. That is 0.03% of every provider in the registry, and the 239th largest of 584 specialties with a page here.
- Taxonomy code
- 305R00000X
- Grouping
- Managed Care Organizations
- Classification
- Preferred Provider Organization
- Active providers
- 3,091
- States covered
- 51 of 51
What the code means
A group of physicians and/or hospitals who contract with an employer to provide services to their employees. In a PPO, the patient may got to the physician of his/her choice, even if that physician does not participate in the PPO, but the patient receives care at a lower benefit level.
Definition quoted verbatim from the NUCC Health Care Provider Taxonomy code set, version 25.1. Not paraphrased.
Where they are
Counted by practice location, not by mailing address or by licence state. A provider practising across a state line is counted where they practise.
| State | Providers | Share |
|---|---|---|
| California | 510 | |
| Texas | 279 | |
| Florida | 263 | |
| New York | 166 | |
| Illinois | 114 | |
| Louisiana | 112 | |
| Georgia | 110 | |
| Ohio | 103 | |
| North Carolina | 92 | |
| Washington | 88 | |
| Virginia | 84 | |
| Michigan | 79 | |
| New Jersey | 75 | |
| Arizona | 63 | |
| Oregon | 58 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
165 of these are people and 2,926 are organisations, so 95% of the code is businesses rather than clinicians. Half of them had registered by 2012, and 168 registered in the last five years, 5% of the current population.
That is a slow-growing code, which usually means an established field replacing retirements rather than expanding.
Where the practices are
By practice-location city. City counts are noisier than state counts, because a large employer files one address for many providers.
- HOUSTON, TX71
- NEW YORK, NY44
- CHICAGO, IL34
- MIAMI, FL32
- LAS VEGAS, NV28
- DALLAS, TX24
- PORTLAND, OR20
- LOS ANGELES, CA19
- ATLANTA, GA19
- SAINT LOUIS, MO18
What else they list
Providers whose primary code is Preferred Provider Organization most often carry these secondary taxonomies as well. This is the closest thing the registry has to a map of which specialties overlap in practice, and it is not published anywhere else.
| Also listed | Providers | Share |
|---|---|---|
| Health Maintenance Organization | 54 | 1.7% |
| Point of Service | 41 | 1.3% |
| Exclusive Provider Organization | 36 | 1.2% |
| Community/Behavioral Health Agency | 12 | 0.4% |
| Case Management Agency | 11 | 0.4% |
| Home Health Agency | 10 | 0.3% |
| In Home Supportive Care Agency | 10 | 0.3% |
| General Practice Dentistry | 7 | 0.2% |
Looking up a specific provider
These counts come from the monthly NPPES file. To check one provider, use their NPI: the lookup reads the live registry and shows whether the identifier is still active, which the monthly file cannot tell you about the last few weeks.
Counts from npidata_pfile_20050523-20260712.csv, built 2026-08-09. Primary taxonomy only, deactivated identifiers excluded.