Clinical Nurse Specialist
NUCC 364S00000X
1,760 CMS NPPES-registered providers across 51 states · 210th of 690 specialties by headcount.
Where this specialty sits in the corpus
Clinical Nurse Specialist ranks 210th of 690 NUCC specialties by CMS NPPES headcount (0.02% of all registered NPIs), densest in Ohio; per resident Delaware leads.
- 1,760
- NPPES providers in specialty
- 210th
- of 690 specialties
- 549
- state-share HHI
- 22.3%
- Part D prescriber share
Delaware is densest per capita (4.3× the national rate; Minnesota 4.1×).
Taxonomy fingerprint
Clinical Nurse Specialist (NUCC 364S00000X; 22.3% Part D prescribers (392 of 1,760); avg 1,012 Part D claims/prescriber (146th of 572); Open Payments avg $800/physician (301st of 551; 465 paid, $372K total); state-share HHI 549; next-larger headcount neighbor Geriatric Medicine (Family Medicine) Physician (+32); next-smaller Clinical Cardiac Electrophysiology Physician (-92)).
Next larger: Geriatric Medicine (Family Medicine) Physician (1,792) Next smaller: Clinical Cardiac Electrophysiology Physician (1,668)
Population-adjusted state index
Each multiple is this specialty's providers-per-resident in a state divided by the national rate (Census Vintage population estimates). Raw headcount favors large states; this ranking surfaces denser markets.
Over-indexed vs national rate
- Delaware 4.3× · 2.2/100k
- Minnesota 4.1× · 2.1/100k
- Ohio 3.9× · 2/100k
- North Dakota 3.7× · 1.9/100k
- Oklahoma 3.4× · 1.8/100k
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | Ohio | 236 |
| 2 | Texas | 154 |
| 3 | California | 141 |
| 4 | Illinois | 137 |
| 5 | Minnesota | 123 |
| 6 | Oklahoma | 71 |
| 7 | Indiana | 67 |
| 8 | Michigan | 62 |
| 9 | Massachusetts | 57 |
| 10 | Wisconsin | 51 |
| 11 | Colorado | 46 |
| 12 | North Carolina | 45 |
| 13 | Florida | 43 |
| 14 | Pennsylvania | 41 |
| 15 | Virginia | 37 |
Top Cities for Clinical Nurse Specialist
| # | City | Providers |
|---|---|---|
| 1 | ClevelandOhio | 83 |
| 2 | RochesterMinnesota | 36 |
| 3 | AustinTexas | 34 |
| 4 | HoustonTexas | 34 |
| 5 | TulsaOklahoma | 31 |
| 6 | IndianapolisIndiana | 26 |
| 7 | ColumbusOhio | 26 |
| 8 | Oklahoma CityOklahoma | 26 |
| 9 | MinneapolisMinnesota | 24 |
| 10 | CincinnatiOhio | 24 |
| 11 | ChicagoIllinois | 23 |
| 12 | PeoriaIllinois | 23 |
Sample Clinical Nurse Specialist NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Louise Frederick, APRN, CNSLafayette, LA |
| 2 | Susan Berg, A.R.N.P.Cave Junction, OR |
| 3 | Lori Quinn-Tate, R.N., M.N.Baton Rouge, LA |
| 4 | Barbara Crosby, A.R.N.P.Asheville, NC |
| 5 | Tammy McCarty, APRNFort Myers, FL |
| 6 | Leigh Harkcom, MN/ARNPSpokane, WA |
| 7 | Carrie Lapham, CNSLa Crosse, WI |
| 8 | Cynthia Simons, APRN, BC-PCMNewark, OH |
| 9 | Michele Knapik-Smith, APNAiken, SC |
| 10 | Donna Williams, CNSColumbus, OH |
| 11 | Susan Ruda, RN,MS,APN,ONCPalos Heights, IL |
| 12 | Sonja BruneSan Antonio, TX |
| 13 | Marjorie Wood, CNSDallas, TX |
| 14 | Nancy Smith, MSN, RN, CSCary, NC |
| 15 | Shaleen Ayers, CNSEvansville, IN |
| 16 | Linda Hill, APNSan Antonio, TX |
| 17 | Cristin Rassi, APN CNSPeoria, IL |
| 18 | Daniel Gauntner, CNS, CRNPCleveland, OH |
Related Specialties
Adjacent specialties in the NUCC Health Care Provider Taxonomy.
Compare Clinical Nurse Specialist vs Adult Health Clinical Nurse Specialist →
Frequently Asked Questions
Where does the large Clinical Nurse Specialist headcount concentrate?
How large is Clinical Nurse Specialist's Open Payments footprint?
How heavy is Clinical Nurse Specialist Part D prescribing at scale?
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 2026-08-27.