Doctor profile · Federal record
Dr. James Duffy, MD
Psychiatry Physician (CMS: Psychiatry) · Mystic, CT
- NPI 1831118736
- Accepts Medicare
- MIPS 81.7 / 100 · 2023
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
100 Perkins Farm Drive, Suite 102
Mystic, CT 06355
(860) 870-6385
fax (860) 245-0000
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- July 19, 2022
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- California #C56124
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831118736. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
193
Distinct HCPCS
3
Medicare allowed
$34,081
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 129 | 37 | $178 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 34 | 34 | $223 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 30 | 19 | $116 |
In context: peer comparison
Among 1 peers in Mystic Psychiatry Physician, average services per provider: 64. This provider delivers 3.0× the peer median.Open Payments
Industry payments received
All-time total
$20
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amneal Pharmaceuticals LLC | 1 | $19.61 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
236
Patients
42
Total drug cost
$85,858
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Buspirone Hcl | Generic | 54 | 20 | $940 |
| Mirtazapine | Generic | 37 | 11 | $979 |
| Escitalopram Oxalate | Generic | 36 | 11 | $731 |
| Clonazepam | Generic | 31 | 0 | $271 |
| Sertraline Hcl | Generic | 22 | 0 | $156 |
| Nuplazid (Pimavanserin Tartrate) | Brand | 16 | 0 | $82,098 |
| Bupropion Xl (Bupropion Hcl) | Brand | 14 | 0 | $457 |
| Fluoxetine Hcl | Generic | 14 | 0 | $84 |
| Trazodone Hcl | Generic | 12 | 0 | $143 |
Frequently asked questions
What is Dr. James Duffy's medical specialty?
Dr. James Duffy practices Psychiatry Physician in Mystic, CT.
Where does Dr. James Duffy practice?
Dr. James Duffy practices at 100 Perkins Farm Drive, Mystic, CT 06355. Office phone: 8608706385.
What is Dr. James Duffy's NPI?
Dr. James Duffy's National Provider Identifier (NPI) is 1831118736, issued by NPPES.
Does Dr. James Duffy accept Medicare assignment?
Yes. Dr. James Duffy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Duffy commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.