Doctor profile · Federal record
Dr. Patrick Duffy, PSY.D.
Clinical Psychologist · Charleston, SC
- NPI 1417203696
- Accepts Medicare
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
171 Ashley Ave
Charleston, SC 294252163
(843) 792-1414 - Additional location
-
125 Wappoo Creek Dr
Charleston, SC 294122163
(843) 762-6311 - Mailing address
-
Po Box 751461
Charlotte, NC 282751461
Credentials & registration
- NPI registered
- July 2012 — 14 yrs on file
- Profile last updated
- March 23, 2021
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 103TC0700X — NUCC code
- State license (1)
- South Carolina #1105
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1417203696. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
116
Distinct HCPCS
2
Medicare allowed
$11,056
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90832 |
Psychotherapy, 30 minutes | 77 | 14 | $72 | |
90837 |
Psychotherapy, 1 hour | 39 | 11 | $141 |
In context: peer comparison
Among 8 peers in Charleston Clinical Psychologist, average services per provider: 59. This provider delivers 2.0× the peer median.Frequently asked questions
What is Dr. Patrick Duffy's medical specialty?
Dr. Patrick Duffy practices Clinical Psychologist in Charleston, SC.
Where does Dr. Patrick Duffy practice?
Dr. Patrick Duffy practices at 171 Ashley Ave, Charleston, SC 294252163. Office phone: 8437921414.
What is Dr. Patrick Duffy's NPI?
Dr. Patrick Duffy's National Provider Identifier (NPI) is 1417203696, issued by NPPES.
Does Dr. Patrick Duffy accept Medicare assignment?
Yes. Dr. Patrick Duffy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patrick Duffy commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90832); Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.