Provider Profile
Douglas L. William, PhD
Unclaimed ProfileAbout Dr. William
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Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (516) 931-0752
- Email not available
Practice Locations
30 FLOWER LN
Jericho, NY 11753
Common questions
What does Douglas L. William specialize in?
Douglas L. William is a psychologist in Jericho, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical Child & Adolescent”.
NPI registry
Where is Douglas L. William located?
Douglas L. William is listed at 30 Flower Ln, Jericho, NY 11753. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Douglas L. William's phone number?
The number on file is (516) 931-0752. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Douglas L. William?
Douglas L. William's National Provider Identifier is 1871632489. 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
How much experience does Douglas L. William have?
Douglas L. William has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Douglas L. William's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Douglas L. William. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.