William Orr Hahn, PhD is a clinical psychologist practising in New Kensington, PA. William trained at University of Pittsburgh School of Medicine, graduating in 1984. William is also listed as specialising in psychologist and psychologist — clinical.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Hahn is a clinical psychologist in New Kensington, PA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CLINICAL PSYCHOLOGIST”.
NPI registry
Dr. Hahn is listed at 365 FREEPORT ST, New Kensington, PA 15068. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (724) 337-0066. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Hahn's National Provider Identifier is 1568426765. 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
Dr. Hahn attended University of Pittsburgh School of Medicine, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
Dr. Hahn has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Hahn provides treatments such as psychiatric diagnostic evaluation and psychotherapy, 30 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 Dr. Hahn. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
365 FREEPORT ST
New Kensington, PA 15068
179 services · 167 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Psychiatric diagnostic evaluation | Treatment | 90791 |
129 |
| Psychotherapy, 30 minutes | Treatment | 90832 |
50 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileConnections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other providers in the same specialty who trained at the same institution.
Providers who graduated from the same medical school in the same year.
Providers in PA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.