DR. WILLIAM R CHATLOS (PHD) – Psychologist, NPI 1639477557

DR. WILLIAM R CHATLOS (PHD) is a healthcare provider. based in Reston, Virginia. specializing in Psychologist. They hold the professional credentials PHD. They hold a License No. 0811000922 (VA). The NPI Number for DR. WILLIAM R CHATLOS (PHD) is 1639477557

Main info

Male
Sole Proprietor
Name
DR. WILLIAM R CHATLOS (PHD)
NPI
1639477557
Phone
(703) 437-9103
Address
11333 SUNSET HILLS ROAD
Enumeration Date
1 March 2011
Last Update Date
1 March 2011
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience44
Completeness75
Years active:15State licenses:1Digital endpointsOther names

Provider Addresses for DR. WILLIAM R CHATLOS (PHD)

  • 11333 SUNSET HILLS ROAD

    RESTON, VA 201905205

    Phone: (703) 437-9103

    Fax: (703) 464-0507

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 20190)

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Reviews

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Frequently asked questions

Can I use this page to confirm DR. WILLIAM R CHATLOS (PHD)'s NPI?
Yes. DR. WILLIAM R CHATLOS (PHD) is listed with NPI 1639477557 in the public NPI dataset.
Can I rely on DR. WILLIAM R CHATLOS (PHD) being an active provider?
As of the registry snapshot, DR. WILLIAM R CHATLOS (PHD) is marked active.
What is DR. WILLIAM R CHATLOS (PHD)'s specialty?
The listing groups DR. WILLIAM R CHATLOS (PHD) with Psychologist. Clinical services aligned with this taxonomy classification.
What address line appears for DR. WILLIAM R CHATLOS (PHD)?
DR. WILLIAM R CHATLOS (PHD)'s geographic hint is Reston, Virginia in our summary view.
Is the information about DR. WILLIAM R CHATLOS (PHD) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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