Doctor profile · Federal record

Dr. Gwynn Stup, A.P.R,N.

Clinical Nurse Specialist (CMS: Nurse Practitioner) · Psychiatric/Mental Health Clinical Nurse Specialist · Dover, DE

  • NPI 1942242664
  • Accepts Medicare
  • 22 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1326 S Governors Ave, Ste C
Dover, DE 199044800
(302) 222-8304
fax (302) 736-1280

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
March 5, 2017
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
364S00000X — NUCC code
State license (1)
Delaware #LE-0000166
Medicaid
DE #1000036563

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942242664. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
187
Distinct HCPCS
3
Medicare allowed
$11,800
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 87 27 $67
Q3014 Telehealth originating site facility fee 56 22 $28
99214 Established patient office or other outpatient visit, 30-39 minutes 44 13 $101

In context: peer comparison

Among 2 peers in Dover Clinical Nurse Specialist, average services per provider: 71. This provider delivers 2.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$296
Transactions
14
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, INC 4 $103.07
Tris Pharma INC 3 $42.40
Otsuka America Pharmaceutical, INC. 2 $30.01
Axsome Therapeutics, INC. 1 $29.64
Lundbeck LLC 1 $27.89
Takeda Pharmaceuticals U.S.A., INC. 1 $24.22
Alkermes, INC. 1 $21.19
Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) 1 $17.30

By nature of payment

Food and Beverage
$296

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
659
Patients
0
Total drug cost
$25,752
Drug Type Claims Patients Total cost
Aripiprazole Generic 84 0 $9,277
Dextroamphetamine-Amphetamine (Dextroamphetamine/Amphetamine) Brand 55 0 $3,080
Fluoxetine Hcl Generic 54 0 $746
Clonazepam Generic 53 0 $500
Clonidine Hcl Generic 53 0 $588
Benztropine Mesylate Generic 52 0 $694
Quetiapine Fumarate Generic 52 0 $1,010
Trazodone Hcl Generic 47 0 $1,112
Alprazolam Generic 39 0 $507
Divalproex Sodium ER (Divalproex Sodium) Brand 39 0 $2,144

Frequently asked questions

Auto-generated from federal data
What is Dr. Gwynn Stup's medical specialty?
Dr. Gwynn Stup practices Clinical Nurse Specialist in Dover, DE.
Where does Dr. Gwynn Stup practice?
Dr. Gwynn Stup practices at 1326 S Governors Ave, Dover, DE 199044800. Office phone: 3022228304.
What is Dr. Gwynn Stup's NPI?
Dr. Gwynn Stup's National Provider Identifier (NPI) is 1942242664, issued by NPPES.
Does Dr. Gwynn Stup accept Medicare assignment?
Yes. Dr. Gwynn Stup accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gwynn Stup commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Telehealth originating site facility fee (HCPCS Q3014); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.