Gastroenterology Registered Nurse providers in the U.S.
362 NPPES records list gastroenterology registered nurse as their primary taxonomy, about 0.1 per 100,000 residents; Idaho and North Dakota have the most per resident. 5 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 163WG0100X means
163WG0100X is the National Uniform Claim Committee code for Registered Nurse, Gastroenterology, in the grouping Nursing Service Providers. 362 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 163WG0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Los Angeles has the most, 28
Source: CMS NPPES, primary taxonomy 163WG0100X by practice city, file of Aug 9, 2026.
All 44 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Nebraska | 8 | 0.4 |
| Nevada | 1 | 0.0 |
| New Jersey | 1 | 0.0 |
| New Mexico | 1 | 0.0 |
| New York | 9 | 0.0 |
| North Carolina | 4 | 0.0 |
| North Dakota | 7 | 0.9 |
| Ohio | 11 | 0.1 |
| Oklahoma | 2 | 0.0 |
| Oregon | 3 | 0.1 |
| Pennsylvania | 12 | 0.1 |
| Rhode Island | 1 | 0.1 |
| South Carolina | 6 | 0.1 |
| South Dakota | 1 | 0.1 |
| Tennessee | 1 | 0.0 |
| Texas | 27 | 0.1 |
| Vermont | 1 | 0.2 |
| Virginia | 9 | 0.1 |
| Washington | 3 | 0.0 |
| West Virginia | 1 | 0.1 |
| Wisconsin | 1 | 0.0 |
| Wyoming | 1 | 0.2 |
In federal data
- NUCC code163WG0100X · Registered Nurse
- Size rank374th of 688 specialties by records (0% of all)
- In its family31st of 56 Registered Nurse codes, 0.1% of the family
- Part D prescribers5 (1.4% of records)
- Part D claims628 a year per prescriber, on average (145th of 496)
- Industry payments10 physicians paid $7K in 2024, $657 each on average
- Concentration5 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 gastroenterology registered nurse records
- Jaime Liann PrestoAnchorage, AK1912399957
- Kimberly Velleman, NP-CAnchorage, AK1477413037
- Edwina Watson, NPBirmingham, AL1427228261
- April Benson, RNMobile, AL1407646797
- Rachel LongNorth Little Rock, AR1780355917
- Elizabeth Evanich, BSN, ANPPhoenix, AZ1043238207
- Alysia Iguado, RNPhoenix, AZ1891343976
- Ledonna Moose, BSN, RNPhoenix, AZ1740348820
- Deborah Copeland, RN, BSN, CGRNMesa, AZ1679545719
- Erika Frazer, RNChandler, AZ1437741105
- Rachel RowleyTucson, AZ1669206470
- Jennifer LehmannTucson, AZ1881254068
Registry order, not a ranking. Search by name to find one provider.
Common questions
How should I read Gastroenterology Registered Nurse's mid-pack national roster?
362 CMS-registered Gastroenterology Registered Nurse providers sit across 44 states; California leads with 69. Rank 374th of 688 NUCC specialties by headcount.
How does Gastroenterology Registered Nurse show up in Open Payments mid-pack?
CMS Open Payments 2024 lists 10 Gastroenterology Registered Nurse physicians receiving $7K across 314 payments (average $657; 264th of 470 specialties). Not a quality score.
How much Part D prescribing does this specialty do?
Among Gastroenterology Registered Nurse NPIs, 5 appear in the Medicare Part D Prescriber PUF (average 628 claims and $443K drug cost per prescriber; 145th 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.