Maternal Newborn Registered Nurse
664 active US providers register Maternal Newborn Registered Nurse as their primary taxonomy. That is 0.01% of every provider in the registry, and the 436th largest of 584 specialties with a page here.
- Taxonomy code
- 163WM0102X
- Grouping
- Nursing Service Providers
- Classification
- Registered Nurse
- Specialization
- Maternal Newborn
- Active providers
- 664
- States covered
- 47 of 51
What the code means
Definition to come...
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 | 81 | |
| Pennsylvania | 47 | |
| Washington | 42 | |
| Georgia | 39 | |
| New York | 38 | |
| Texas | 30 | |
| Arizona | 24 | |
| Massachusetts | 24 | |
| Colorado | 23 | |
| Florida | 22 | |
| Michigan | 18 | |
| Oregon | 16 | |
| Utah | 16 | |
| Ohio | 15 | |
| Illinois | 14 |
Showing the 15 largest of 47 states with at least one.
Who registers under this code
643 of these are people and 21 are organisations, so 3% of the code is businesses rather than clinicians. Half of them had registered by 2021, and 371 registered in the last five years, 56% of the current population.
That is a fast-growing code. A population where a large share registered recently is either a genuinely expanding field or a category NPPES added late, and the taxonomy definition above usually tells you which.
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.
- SEATTLE, WA12
- GALLUP, NM12
- LANCASTER, PA11
- PHOENIX, AZ11
- SAN DIEGO, CA10
- LEWES, DE8
- FORT STEWART, GA7
- BROOKLYN, NY7
- FORT IRWIN, CA6
- STROUDSBURG, PA6
What else they list
Providers whose primary code is Maternal Newborn Registered Nurse 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 |
|---|---|---|
| Registered Nurse | 30 | 4.5% |
| Lactation Consultant (Registered Nurse) | 17 | 2.6% |
| Community Health Registered Nurse | 13 | 2.0% |
| Doula | 12 | 1.8% |
| Inpatient Obstetric Registered Nurse | 10 | 1.5% |
| Ambulatory Women's Health Care Registered Nurse | 9 | 1.4% |
| Perinatal Registered Nurse | 9 | 1.4% |
| Home Health Registered Nurse | 7 | 1.1% |
Nearby specialties
Other taxonomies NUCC files under Registered Nurse.
- Gerontology Registered Nurse644
- Oncology Registered Nurse779
- Ambulatory Women's Health Care Registered Nurse788
- Neonatal Intensive Care Registered Nurse522
- Hospice Registered Nurse514
- Wound Care Registered Nurse818
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.