Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Gardner McCullough, LCSW

Individual provider Social Worker · NPI 1538787726

Mr. Gardner McCullough, LCSW is a Clinical Social Worker in Alexandria, Virginia. Qualified in 2019, 7 years ago. Practices with Sondermind Provider Network LLC, a 1,258-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
7
Licensed in
MD
In the registry since
2020
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

3301 Richmond Hwy # 1192
Alexandria, VA 22305-3044
Phone: (571) 596-7864
Fax: (833) 542-3318
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 25268 (MD)

Record details

NPI number1538787726
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJuly 14, 2020
Last updated in NPPESDecember 17, 2025
Certification dateDecember 17, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Sondermind Provider Network Llc — 1258 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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