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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM ARMOUR SMITH LMSW
NPI 1821368994
Social Worker in Marietta, GA

Active since January 06, 2012PECOS Enrolled
3113 ROSWELL RD STE 204, MARIETTA, GA 30062(770) 421-5271(404) 481-2031 Get Directions Write a Review

NPPES record last updated: October 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About William Armour Smith Lmsw NPPES

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

WILLIAM ARMOUR SMITH LMSW (NPI 1821368994) is an individual social worker in Marietta, Georgia, licensed in Georgia (MSW006418) and active in the NPI registry since January 2012. He is enrolled in Medicare PECOS and maintains a secondary practice location in Decatur.

NPPES Registry Identity

NPI1821368994
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameWILLIAM ARMOUR SMITHCredential: LMSW
Location Address3113 ROSWELL RD STE 204Marietta, GA 30062-5500
Mailing Address3113 Roswell Rd Ste 204Marietta, GA 30062-5500 · (770) 421-5271 · Fax (404) 481-2031
Phone(770) 421-5271
Fax(404) 481-2031
Sole ProprietorNo
Enumeration DateJanuary 6, 2012
Last NPPES UpdateOctober 16, 2026
NPPES CertifiedOctober 16, 2026
✔ NPI 1821368994 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in GA · MSW006418
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Also ListedCounselorTaxonomy 101Y00000X
3113 ROSWELL RD STE 204, Marietta, GA 30062
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Secondary Practice Location 1

Location 1165 Dekalb Industrial Way Ste B1Decatur, GA 30030-2230 · Phone (770) 421-5271 · Fax (404) 481-2031

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Armour Smith Lmsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show William Smith reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Greater Atlanta Family Counseling, LLC
17 mi
Clinical
165 DEKALB INDUSTRIAL WAY STE B1
Decatur, GA 30030
  • Reassigned Medicare billing, Georgia enrollment
  • 3 clinicians in this Medicare group
NPI 1629431390 (770) 421-5271
View Point Health
27 mi
Mental Health (Including Community Mental Health Center)
175 GWINNETT DR, POST OFFICE BOX 687
Lawrenceville, GA 30046
  • Reassigned Medicare billing, Georgia enrollment
  • 76 clinicians in this Medicare group
NPI 1609853860 (770) 339-5377

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 5

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

MADELINE ROSE TUFFORD BCBA
Behavior Analyst
3113 ROSWELL RD STE 204
MARIETTA, GA 30062
Cobb County (470) 344-4601
SHANNON MCMANUS PLPC
Counselor
3113 ROSWELL RD STE 204
MARIETTA, GA 30062
Cobb County (470) 396-0591
GREATER ATLANTA BEHAVIORAL CLINIC LLC
Behavior Analyst
3113 ROSWELL RD STE 204
MARIETTA, GA 30062
Cobb County (678) 447-3901
THE ATLANTA MARRIAGE AND MEDIATION CLINIC
Social Worker (Clinical)
3113 ROSWELL RD STE 204
MARIETTA, GA 30062
Cobb County (678) 744-8750
THE ATLANTA BEHAVIORAL CLINIC LLC
Behavior Analyst
3113 ROSWELL RD STE 204
MARIETTA, GA 30062
Cobb County (678) 447-3901

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 William Smith's NPI number?

The NPI number for William Smith is 1821368994. It was assigned to this individual provider in the NPPES registry on January 6, 2012.

Where is William Smith located?

William Smith practices at 3113 Roswell Rd Ste 204, Marietta, GA 30062. The listed phone number is (770) 421-5271.

What is William Smith's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is William Smith enrolled in Medicare?

Yes. William Smith is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Smith's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Smith reassigns Medicare benefits to 2 organizations: Greater Atlanta Family Counseling, LLC (Decatur, GA) and View Point Health (Lawrenceville, GA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Smith's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Smith accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list William Smith as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Smith was last updated on October 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.