Doctor profile · Federal record

Dr. Stephen Denagy, M4915

Internal Medicine Physician (CMS: Internal Medicine) · Ammon, ID

  • NPI 1336273085
  • Accepts Medicare
  • 44 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2705 E 17Th St
Ammon, ID 834066601
(208) 346-7500
fax (208) 346-7501

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
April 3, 2015
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Idaho #M4915
Medicaid
ID #002648500

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336273085. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
881
Distinct HCPCS
5
Medicare allowed
$82,372
HCPCS Description Services Patients Avg allowed
90834 Psychotherapy, 45 minutes 421 22 $93
90833 Psychotherapy with evaluation and management visit, 30 minutes 218 90 $64
99214 Established patient office or other outpatient visit, 30-39 minutes 208 89 $114
99215 Established patient office or other outpatient visit, 40-54 minutes 22 15 $165
90791 Psychiatric diagnostic evaluation 12 12 $166

In context: peer comparison

Among 1 peers in Ammon Internal Medicine Physician, average services per provider: 176. This provider delivers 5.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$582
Transactions
34
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 15 $231.16
Axsome Therapeutics, INC. 6 $107.14
Vanda Pharmaceuticals INC. 3 $63.22
Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) 2 $40.16
Indivior INC. 2 $35.83
Otsuka America Pharmaceutical, INC. 2 $31.27
E.R. Squibb & Sons, L.L.C. 1 $20.29
Corium, LLC 1 $18.50
Teva Pharmaceuticals USA, INC. 1 $17.71
Neurocrine Biosciences, INC. 1 $16.22

By nature of payment

Food and Beverage
$582

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,066
Patients
377
Total drug cost
$169,611
Drug Type Claims Patients Total cost
Lamotrigine Generic 251 34 $2,343
Trazodone Hcl Generic 249 31 $2,935
Quetiapine Fumarate Generic 241 30 $5,410
Prazosin Hcl Generic 234 24 $6,553
Divalproex Sodium Generic 217 20 $8,585
Clozapine Generic 214 18 $27,300
Lithium Carbonate Generic 214 27 $1,698
Olanzapine Generic 207 20 $4,425
Gabapentin Generic 192 29 $4,818
Minocycline Hcl Generic 182 27 $8,778

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Denagy's medical specialty?
Dr. Stephen Denagy practices Internal Medicine Physician in Ammon, ID.
Where does Dr. Stephen Denagy practice?
Dr. Stephen Denagy practices at 2705 E 17Th St, Ammon, ID 834066601. Office phone: 2083467500.
What is Dr. Stephen Denagy's NPI?
Dr. Stephen Denagy's National Provider Identifier (NPI) is 1336273085, issued by NPPES.
Does Dr. Stephen Denagy accept Medicare assignment?
Yes. Dr. Stephen Denagy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Denagy commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834); Psychotherapy with evaluation and management visit (HCPCS 90833); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.