Sarah Sirbasku Williams, PH.D.
NPI 1417961756 · Clinical Psychologist · Vienna, VA
Sarah Sirbasku Williams, PH.D. is a Clinical Psychologist provider in Vienna, VA (NPI 1417961756).
Provider details
- NPI number
- 1417961756
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0810004728 (VA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2006-07-29
- Last updated
- 2014-06-18
Frequently asked questions
- What is Sarah Sirbasku Williams's NPI number?
- Sarah Sirbasku Williams's National Provider Identifier (NPI) is 1417961756, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Sirbasku Williams's specialty?
- Sarah Sirbasku Williams is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Sarah Sirbasku Williams located?
- Sarah Sirbasku Williams's practice location on file with NPPES is 1604 Spring Hill Rd, Vienna, VA 22182-7510.
- What is Sarah Sirbasku Williams's phone number?
- The practice phone number listed in the NPPES registry for Sarah Sirbasku Williams is (571) 766-8717.
- Is Sarah Sirbasku Williams's NPI active?
- Yes — Sarah Sirbasku Williams's NPI (1417961756) is active in the NPPES registry as of the last update on 2014-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.