William Walter Clark, PHD
Clinical Psychologist · Vienna, VA
William Walter Clark, PHD is a clinical psychologist with a practice address in Vienna, Virginia, and NPI 1972716702, issued on May 8, 2007. Check the license (Virginia 0810002215, as entered in NPPES) with the Virginia board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Walter Clark
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 0810002215 VA
Self-reported in NPPES; status is on the state search - Practice location
- 2110 Gallows RD # B, Vienna, VA 22182
- Phone
- (703) 506-8378
- Enumerated
- May 8, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (703) 893-1011
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 2,329 in Virginia → Look up another NPI →
Verify William Walter Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Virginia board licenses this profession
Search for license 0810002215Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Walter Clark among 2,329 clinical psychologist records in Virginia
William Walter Clark, PHD is one of 2,329 clinical psychologist records with a practice address in Virginia. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 58% newer
- In a Medicare fileNo · 11% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2007 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 clinical psychologist records list a practice address in Vienna
They are 49 of the 1,554 NPPES records with a practice address in Vienna, and 2,329 clinical psychologist records in Virginia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,329 in Virginia → Every provider in Vienna → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Puran Douglass, PSYDVienna, VA 221821417209164
- Ashley Hallheimer, PSY.D.Vienna, VA 221821740614783
- Russell Hunter, PSY.DVienna, VA 221821679612485
- Harold Kaplan, PH.DVienna, VA 221821679574271
- Ashley Kaplan, PSY.D.Vienna, VA 221821710343454
- Sally Kugler, PH.D.Vienna, VA 221821366658007
- Christopher Lane, PH.D.Vienna, VA 221821053439281
- Samantha Madhosingh, PSYDVienna, VA 221821922301423
Common questions
What is William Walter Clark, PHD's NPI number?
William Walter Clark, PHD's National Provider Identifier (NPI) is 1972716702, issued on May 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Walter Clark, PHD located?
The NPPES record lists a practice address at 2110 Gallows RD # B, Vienna, VA, 22182. Phone: (703) 506-8378. Providers update this record themselves, so call before visiting.
How can I verify William Walter Clark, PHD's license?
NPPES lists Virginia license number 0810002215, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.