Are you Patrick Duffy, PsyD? This profile is yours to edit: update your address, phone, photo and services.
Edit this profilePatrick Duffy, PsyD is a clinical psychologist practicing in Charleston, SC. Patrick is also listed as specializing in psychologist — clinical. According to Medicare claims data, Patrick cared for 40 Medicare patients across 139 services. The services billed most often include psychotherapy, 30 minutes, psychotherapy, 45 minutes, and psychotherapy, 1 hour. This provider record is associated with NPI 1417203696.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
171 ASHLEY AVE
Charleston, SC 29425
125 Wappoo Creek Dr
Charleston, SC 29412
Within Clinical Psychology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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139 services · 40 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy, 30 minutes | Treatment | 90832 |
67 | As often as other peers in Clinical Psychologist |
| Psychotherapy, 45 minutes | Treatment | 90834 |
48 | Less often than most peers in Clinical Psychologist |
| Psychotherapy, 1 hour | Treatment | 90837 |
24 | Less often than most peers in Clinical Psychologist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Patrick Duffy is a clinical psychologist in Charleston, SC. That is the designation recorded for this NPI in the federal registry.
NPI registry
Patrick Duffy is listed at 171 Ashley Ave, Charleston, SC 29425. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (843) 792-1414. Contact the office directly to confirm availability and scheduling.
NPI registry
Patrick Duffy's National Provider Identifier is 1417203696. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Patrick Duffy attended Other, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
Patrick Duffy has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Patrick Duffy provides treatments such as psychotherapy, 30 minutes and psychotherapy, 45 minutes. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Patrick Duffy. If this is you, claiming it is free.
Guide.md
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