What is William Chatlos's NPI number?

William Chatlos's National Provider Identifier (NPI) is 1639477557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Chatlos's specialty?

William Chatlos is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).

Where is William Chatlos located?

William Chatlos's practice location on file with NPPES is 11333 Sunset Hills Road, Reston, VA 20190-5205.

What is William Chatlos's phone number?

The practice phone number listed in the NPPES registry for William Chatlos is (703) 437-9103.

Is William Chatlos's NPI active?

Yes — William Chatlos's NPI (1639477557) is active in the NPPES registry as of the last update on 2011-03-01.

IndividualActive

William Chatlos, PHD

NPI 1639477557 · Psychologist · Reston, VA

William Chatlos, PHD is a Psychologist provider in Reston, VA (NPI 1639477557).

Provider details

NPI number: 1639477557
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PHD
Sex: Male
Sole proprietor: Yes
License: 0811000922 (VA)

Specialties & taxonomies

PsychologistPrimary103T00000XLicense 0811000922 (VA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(82/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
15 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

11333 Sunset Hills Road

Reston, VA 20190-5205

Phone: (703) 437-9103

Fax: (703) 464-0507

Street-level locationGet directions

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Mailing address