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Edit this profileWilliam R. Slagle, PhD is a psychologist — clinical based in Henderson, NV. According to Medicare claims data, the services billed most often include psychotherapy, 1 hour. The provider's National Provider Identifier (NPI) is 1114943016.
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.
1070 WIGWAM PKWY STE 100
Henderson, NV 89074
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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200 services · 19 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy, 1 hour | Treatment | 90837 |
200 | As often as other peers in Psychologist — Clinical |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Slagle is a psychologist in Henderson, NV. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.
NPI registry
Dr. Slagle is listed at 1070 Wigwam Pkwy Ste 100, Henderson, NV 89074. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (702) 454-0201. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Slagle's National Provider Identifier is 1114943016. 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. Slagle has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, Dr. Slagle provides treatments such as psychotherapy, 1 hour. 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. Slagle. If this is you, claiming it is free.
Guide.md
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