Mary Lou Lyon , MA
Counselor - Professional • Mc Lean, VA
Notice of NPI Deactivation & Inactive Practice Status
According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Mary Lyon has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Mary Lyon, MA was a registered Counselor - Professional practicing in Mc Lean, VA. Throughout an active medical career spanning 18 years, Mary Lyon provided care at the practice location at 6723 WHITTIER AVE until profile deactivation on 2025-03-13.
Practice Location & Contact Primary Location
6723 Whittier Ave
Suite 406
Mc Lean, VA 221014522
Specialty Benchmarks & Practice Insights
Comparative analytics for Counselor - Professional in Mc Lean, VA
Practicing in Mc Lean, VA (6609 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 101YP2500X
Definition to come...
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Psychologist - Clinical
Doctor of Philosophy (Ph.D.)
Psychologist - Clinical
Doctor of Philosophy (Ph.D.)
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Psychologist - Clinical
Doctor of Philosophy (Ph.D.)
Psychologist
Doctor of Philosophy (Ph.D.)
Psychologist - Clinical
Doctor of Psychology (Psy.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on March 13, 2025
Counselor (License #LC1509 in MD)
NPI status registered as active in NPPES database
Registered at 6723 WHITTIER AVE, SUITE 406, MC LEAN, VA 221014522 (Tel: 7039636301)
Registered at 6723 WHITTIER AVE, SUITE 406, MC LEAN, VA 221014522 (Tel: 7039636301)
Recorded as MARY LYON, MA
Counselor (License #0701004017 in VA)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
6723 Whittier Ave, Suite 406
Mc Lean, VA 221014522
Phone: 7039636301
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