Gerontology Clinical Nurse Specialist
NUCC 364SG0600X · Clinical Nurse Specialist
395 CMS NPPES-registered providers across 47 states · 359th of 690 specialties by headcount.
Where this specialty sits in the corpus
Gerontology Clinical Nurse Specialist ranks 359th of 690 NUCC specialties by CMS NPPES headcount (0.01% of all registered NPIs), densest in California; per resident Oklahoma leads.
- 395
- NPPES providers in specialty
- 359th
- of 690 specialties
- 589
- state-share HHI
- 30.9%
- Part D prescriber share
Oklahoma is densest per capita (6.5× the national rate; Ohio 2.9×); 4.4% of the Clinical Nurse Specialist category.
Taxonomy fingerprint
Gerontology Clinical Nurse Specialist (NUCC 364SG0600X; 30.9% Part D prescribers (122 of 395); avg 906 Part D claims/prescriber (158th of 567); Open Payments avg $638/physician (331st of 552; 120 paid, $77K total); state-share HHI 589; next-larger headcount neighbor Homeopath (+2); next-smaller Pediatric Rheumatology Physician (-1)).
Next larger: Homeopath (397) Next smaller: Pediatric Rheumatology Physician (394)
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 46 |
| 2 | Texas | 45 |
| 3 | Ohio | 40 |
| 4 | Oklahoma | 31 |
| 5 | Illinois | 25 |
| 6 | Michigan | 17 |
| 7 | Florida | 16 |
| 8 | Minnesota | 14 |
Sample Gerontology Clinical Nurse Specialist NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Cheryl Hart, ARNP Bartlesville, OK |
| 2 | Judith Petrin, APRN Fort Myers, FL |
| 3 | Helena Chmielowicz, APRN New Haven, CT |
| 4 | Nicole Blackwood, CRNP Minneapolis, MN |
| 5 | Sharon Marshall, RN GNP CS BC Manvel, TX |
| 6 | Martha Anderson, CNS Roanoke, VA |
| 7 | Jill Bass, CNS Roanoke, VA |
| 8 | Sherry Robinson, RNCS Springfield, IL |
| 9 | Kathleen Ondus, GCNS, BC Lorain, OH |
| 10 | Barbara Cunningham, BSN, MS,APRN,BC, CNS Palo Alto, CA |
| 11 | Betty Wexler, RN CNS Palo Alto, CA |
| 12 | Patricia Brogan, ADVANCE PRACTICE NUR Manchester, NJ |
Frequently Asked Questions
How many Gerontology Clinical Nurse Specialist providers are in the US?
Do Gerontology 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.