CHESTER L DAY MD
NPI 1336224716
Psychiatry & Neurology - Psychiatry in Fairfax, VA

Q: What is Chester Day's NPI number?

The NPI number for Chester Day is 1336224716. It was assigned to this individual provider in the NPPES registry on October 26, 2006. The provider is also known as Chester L Day MD.

Q: What is Chester Day's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Chester Day was last updated on April 5, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.

Active since October 26, 2006

8221 WILLOW OAKS CORPORATE DR STE 4-420, FAIRFAX, VA 22031(703) 289-7560(703) 204-9001 Get Directions Write a Review

NPPES record last updated: April 5, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Chester L Day Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHESTER L DAY MD (NPI 1336224716) is an individual psychiatry provider in Fairfax, Virginia, licensed in Virginia (0101257280) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1336224716

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameCHESTER L DAYCredential: MD

Location Address8221 WILLOW OAKS CORPORATE DR STE 4-420Fairfax, VA 22031-4512

Mailing AddressPo Box 37174Baltimore, MD 21297-3174 · (571) 423-5699 · Fax (571) 423-5698

Phone(703) 289-7560

Fax(703) 204-9001

Sole ProprietorNo

Enumeration DateOctober 26, 2006

Last NPPES UpdateApril 5, 2022

NPPES CertifiedApril 5, 2022

✔ NPI 1336224716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

Licenses✔ Licensed in VA · 0101257280✔ Licensed in KS · 0415631

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

8221 WILLOW OAKS CORPORATE DR STE 4-420, Fairfax, VA 22031

Open in Google Maps ↗

Other Names 1

Other Name (5)Chester L Day Md

Other Identifiers 2

Other106662KS · Bcbs

Medicaid100139940CKS

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ERICA ENGLEFIELD

Counselor (Professional)