Inpatient Obstetric Registered Nurse providers in the U.S.
475 NPPES records list inpatient obstetric registered nurse as their primary taxonomy, about 0.1 per 100,000 residents; Alaska and New Mexico have the most per resident. 9 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 163WX0003X means
163WX0003X is the National Uniform Claim Committee code for Registered Nurse, Obstetric, Inpatient, in the grouping Nursing Service Providers. 475 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.
Most per resident: the 8 highest
Source: CMS NPPES, primary taxonomy 163WX0003X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Phoenix has the most, 24
Source: CMS NPPES, primary taxonomy 163WX0003X by practice city, file of Aug 9, 2026.
All 49 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 10 | 0.2 |
| Alaska | 10 | 1.4 |
| Arizona | 40 | 0.5 |
| Arkansas | 1 | 0.0 |
| California | 35 | 0.1 |
| Colorado | 27 | 0.5 |
| Connecticut | 2 | 0.1 |
| Delaware | 3 | 0.3 |
| District of Columbia | 6 | 0.9 |
| Florida | 19 | 0.1 |
| Georgia | 24 | 0.2 |
| Hawaii | 2 | 0.1 |
| Idaho | 2 | 0.1 |
| Illinois | 10 | 0.1 |
| Indiana | 12 | 0.2 |
| Iowa | 5 | 0.2 |
| Kansas | 6 | 0.2 |
| Kentucky | 5 | 0.1 |
| Louisiana | 8 | 0.2 |
| Maryland | 7 | 0.1 |
| Massachusetts | 17 | 0.2 |
| Michigan | 8 | 0.1 |
| Minnesota | 5 | 0.1 |
| Mississippi | 4 | 0.1 |
| Missouri | 5 | 0.1 |
| State | Records | Per 100,000 |
|---|---|---|
| Montana | 7 | 0.6 |
| Nebraska | 2 | 0.1 |
| Nevada | 5 | 0.2 |
| New Hampshire | 2 | 0.1 |
| New Jersey | 3 | 0.0 |
| New Mexico | 20 | 0.9 |
| New York | 12 | 0.1 |
| North Carolina | 19 | 0.2 |
| North Dakota | 2 | 0.3 |
| Ohio | 11 | 0.1 |
| Oklahoma | 7 | 0.2 |
| Oregon | 7 | 0.2 |
| Pennsylvania | 7 | 0.1 |
| Rhode Island | 3 | 0.3 |
| South Carolina | 4 | 0.1 |
| South Dakota | 6 | 0.7 |
| Tennessee | 6 | 0.1 |
| Texas | 34 | 0.1 |
| Utah | 8 | 0.2 |
| Virginia | 8 | 0.1 |
| Washington | 22 | 0.3 |
| West Virginia | 1 | 0.1 |
| Wisconsin | 3 | 0.1 |
| Wyoming | 2 | 0.3 |
In federal data
- NUCC code163WX0003X · Registered Nurse
- Size rank342nd of 688 specialties by records (0.01% of all)
- In its family27th of 56 Registered Nurse codes, 0.2% of the family
- Part D prescribers9 (1.9% of records)
- Part D claims813 a year per prescriber, on average (107th of 496)
- Industry payments11 physicians paid $9K in 2024, $840 each on average
- Concentration9 states hold half of all records
Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.
A sample of inpatient obstetric registered nurse records
- Arianne MorrisonAnchorage, AK1669301867
- Mary Jane Ackerman, RNFairbanks, AK1275504086
- Kelly Neiheiser, RNBarrow, AK1174747802
- Elsa GilbertKotzebue, AK1073470472
- Christine Dangel, RNSitka, AK1538359609
- Wendy Imhoff, RNCSitka, AK1396926713
- Margaret Shea, RNSitka, AK1295970317
- Carolyn Jarvill, RNSitka, AK1629212543
- Carol Tolle, RNSitka, AK1346575545
- Jennifer Corak, RNSitka, AK1558683128
- Taylor LeonardBirmingham, AL1659917730
- Destyni Goode, RNBirmingham, AL1679269997
Registry order, not a ranking. Search by name to find one provider.
Common questions
How should I read Inpatient Obstetric Registered Nurse's mid-pack national roster?
475 CMS-registered Inpatient Obstetric Registered Nurse providers sit across 50 states; Arizona leads with 40. Rank 342nd of 688 NUCC specialties by headcount.
How does Inpatient Obstetric Registered Nurse show up in Open Payments mid-pack?
CMS Open Payments 2024 lists 11 Inpatient Obstetric Registered Nurse physicians receiving $9K across 395 payments (average $840; 248th of 470 specialties). Not a quality score.
How much Part D prescribing does this specialty do?
Among Inpatient Obstetric Registered Nurse NPIs, 9 appear in the Medicare Part D Prescriber PUF (average 813 claims and $92K drug cost per prescriber; 107th of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.