DR. SIDNEY ALLEN PSYD
NPI 1174493282
Psychologist - Clinical in Fairfax, VA
About Dr. Sidney Allen Psyd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SIDNEY ALLEN PSYD (NPI 1174493282) is an individual clinical provider in Fairfax, Virginia, licensed in Virginia (0810009184) and active in the NPI registry since November 2025.
NPPES Registry Identity
Specialties & Licenses
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FAIRFAX, VA 22030
FAIRFAX, VA 22030
FAIRFAX, VA 22030
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sidney Allen's NPI number?
The NPI number for Sidney Allen is 1174493282. It was assigned to this individual provider in the NPPES registry on November 5, 2025.
Where is Sidney Allen located?
Sidney Allen practices at 4023 Chain Bridge Rd Ste 7, Fairfax, VA 22030. The listed phone number is (571) 520-5454.
What is Sidney Allen's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
When was this NPI record last updated?
The NPPES record for Sidney Allen was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.