Oncology Clinical Nurse Specialist
NUCC 364SX0200X · Clinical Nurse Specialist
211 CMS NPPES-registered providers across 39 states · 431st of 690 specialties by headcount.
Where this specialty sits in the corpus
Oncology Clinical Nurse Specialist ranks 431st of 690 NUCC specialties by CMS NPPES headcount (0% of all registered NPIs), densest in Ohio; per resident Connecticut leads.
- 211
- NPPES providers in specialty
- 431st
- of 690 specialties
- 646
- state-share HHI
- 27.5%
- Part D prescriber share
Connecticut is densest per capita (3.5× the national rate; Ohio 3.5×); 2.3% of the Clinical Nurse Specialist category.
Taxonomy fingerprint
Oncology Clinical Nurse Specialist (NUCC 364SX0200X; 27.5% Part D prescribers (58 of 211); avg 435 Part D claims/prescriber (299th of 567); Open Payments avg $2K/physician (180th of 552; 89 paid, $207K total); state-share HHI 646; next-larger headcount neighbor School Nurse Practitioner (+4); next-smaller Critical Care Medicine Clinical Nurse Specialist (-3)).
Next larger: School Nurse Practitioner (215) Next smaller: Critical Care Medicine Clinical Nurse Specialist (208)
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | Ohio | 26 |
| 2 | California | 25 |
| 3 | Illinois | 25 |
| 4 | Florida | 17 |
| 5 | New Jersey | 14 |
| 6 | New York | 9 |
| 7 | Connecticut | 8 |
| 8 | Indiana | 6 |
Sample Oncology Clinical Nurse Specialist NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Toni Klatt-Ellis, CNSElkhart, IN |
| 2 | Natalie Mandolfo, APRNPapillion, NE |
| 3 | Elizabeth Hamlin, MSN, APRNManchester, NH |
| 4 | Susan Herbst, PN MS AOCNCoeur D Alene, ID |
| 5 | Pamela Bolton, APRNPort Charlotte, FL |
| 6 | Mary Thomas, RN, MS, AOCNPalo Alto, CA |
| 7 | Mary Duong, PACLos Angeles, CA |
| 8 | Lynette Kemp, A.P.R.N.Spartanburg, SC |
| 9 | Shanda Bruner, APRNKnoxville, TN |
| 10 | Jennifer Carrier-Myers, N.P.Torrington, CT |
| 11 | Lisa Stucky-Marshall, APNElmhurst, IL |
| 12 | Eris Zagar, APRNColumbia, MO |
Frequently Asked Questions
How many Oncology Clinical Nurse Specialist providers are in the US?
Do Oncology Clinical Nurse Specialist clinicians appear in Open Payments?
How much Part D prescribing does this specialty do?
Data sources and methodology
Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). Part D averages from the CMS Medicare Part D Prescriber PUF; industry payments from CMS Open Payments 2024. Counts reflect self-designated primary taxonomy at NPI enrollment. PlainDoctor does not rate or rank providers. Methodology · About
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.