Allison Hahn Sidley, PSY.D.
NPI 1669688578 · Clinical Psychologist · Arlington, VA
Allison Hahn Sidley, PSY.D. is a Clinical Psychologist provider in Arlington, VA (NPI 1669688578).
Provider details
- NPI number
- 1669688578
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0810002632 (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
- 2007-05-15
- Last updated
- 2012-03-07
Frequently asked questions
- What is Allison Hahn Sidley's NPI number?
- Allison Hahn Sidley's National Provider Identifier (NPI) is 1669688578, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison Hahn Sidley's specialty?
- Allison Hahn Sidley is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Allison Hahn Sidley located?
- Allison Hahn Sidley's practice location on file with NPPES is 3801 Fairfax Dr, Arlington, VA 22203-1762.
- What is Allison Hahn Sidley's phone number?
- The practice phone number listed in the NPPES registry for Allison Hahn Sidley is (703) 807-0454.
- Is Allison Hahn Sidley's NPI active?
- Yes — Allison Hahn Sidley's NPI (1669688578) is active in the NPPES registry as of the last update on 2012-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.