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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.

HELEN S MCMILLAN LPC, LMHC
NPI 1942896089
Counselor - Professional in Belvedere, SC

Active since December 13, 2020PECOS Enrolled
509 BELVEDERE CLEARWATER RD UNIT A, BELVEDERE, SC 29841(803) 450-4459(803) 859-9031 Get Directions Write a Review

NPPES record last updated: October 23, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 6, 2026, Jun 9, 2025, Dec 13, 2020 (3 updates tracked since 2020).

About Helen S Mcmillan Lpc, Lmhc NPPES

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

HELEN S MCMILLAN LPC, LMHC (NPI 1942896089) is an individual professional provider in Belvedere, South Carolina, licensed in South Carolina (8783) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942896089
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameHELEN S MCMILLANCredential: LPC, LMHC
Location Address509 BELVEDERE CLEARWATER RD UNIT ABelvedere, SC 29841-2591
Mailing Address557 Yuma LnNorth Augusta, SC 29860-9432 · (803) 450-4459 · Fax (803) 859-9031
Phone(803) 450-4459
Fax(803) 859-9031
Sole ProprietorYes
Enumeration DateDecember 13, 2020
Last NPPES UpdateOctober 23, 20263 updates tracked since enumeration
NPPES CertifiedOctober 23, 2026
✔ NPI 1942896089 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
Licenses✔ Licensed in SC · 8783✔ Licensed in GA · 015793✔ Licensed in WA · 70010024
509 BELVEDERE CLEARWATER RD UNIT A, Belvedere, SC 29841
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina 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)

Helen S Mcmillan Lpc, Lmhc 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 Reassignment

Medicare enrollment records show Helen Mcmillan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Brightside Medical, P.C.
2,280 mi
Psychiatry
5214F DIAMOND HEIGHTS BLVD # 345
San Francisco, CA 94131
  • Reassigned Medicare billing, South Carolina enrollment
  • Medicare enrollment name: Brightside Medical PC
  • 34 clinicians in this Medicare group
NPI 1801355482 (415) 360-3348

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

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

CONVERGE COUNSELING
Counselor (Professional)
509 BELVEDERE CLEARWATER RD UNIT A
BELVEDERE, SC 29841
Aiken County (803) 450-4459

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 Helen Mcmillan's NPI number?

The NPI number for Helen Mcmillan is 1942896089. It was assigned to this individual provider in the NPPES registry on December 13, 2020.

Where is Helen Mcmillan located?

Helen Mcmillan practices at 509 Belvedere Clearwater Rd Unit A, Belvedere, SC 29841. The listed phone number is (803) 450-4459.

What is Helen Mcmillan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Helen Mcmillan enrolled in Medicare?

Yes. Helen Mcmillan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Helen Mcmillan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Helen Mcmillan reassigns Medicare benefits to Brightside Medical, P.C. (San Francisco, CA). The 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 Helen Mcmillan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Helen Mcmillan accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and UnitedHealthcare list Helen Mcmillan 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 Helen Mcmillan was last updated on October 23, 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.