Gwynn Stup, A.P.R,N.
NPI 1942242664 · Clinical Nurse Specialist · Dover, DE
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gwynn Stup, A.P.R,N. is a Clinical Nurse Specialist provider in Dover, DE (NPI 1942242664).
Provider details
- NPI number
- 1942242664
- Entity type
- Individual
- Primary specialty
- Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- A.P.R,N.
- Sex
- Female
- Sole proprietor
- Yes
- License
- LE-0000166 (DE)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
702 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 308 | $97 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 203 | $73 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 76 | $60 |
| Psychiatric Services Complicated By Communication Factor90785 | 42 | $12 |
| Assessment of Emotional Or Behavioral Problems96127 | 34 | $5 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 20 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluoxetine Hcl | 143 | 15 |
| Risperidone | 106 | 12 |
| Aripiprazole | 97 | 13 |
| Clonazepam | 96 | 12 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 86 | — |
| Benztropine Mesylate | 84 | 11 |
| Clonidine Hcl | 76 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$296 across 14 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-11
- Last updated
- 2017-03-05
Frequently asked questions
- What is Gwynn Stup's NPI number?
- Gwynn Stup's National Provider Identifier (NPI) is 1942242664, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwynn Stup's specialty?
- Gwynn Stup is listed in the NPPES registry with a primary specialty of Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gwynn Stup located?
- Gwynn Stup's practice location on file with NPPES is 1326 S Governors Ave, Dover, DE 19904-4800.
- What is Gwynn Stup's phone number?
- The practice phone number listed in the NPPES registry for Gwynn Stup is (302) 222-8304.
- Does Gwynn Stup accept Medicare?
- Gwynn Stup is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gwynn Stup's NPI active?
- Yes — Gwynn Stup's NPI (1942242664) is active in the NPPES registry as of the last update on 2017-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.