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

MARY MARSHALL SIMONSON LPC
NPI 1609142702
Counselor - Mental Health in Raleigh, NC

Active since March 22, 2012PECOS EnrolledAccepts Medicare Assignment
3125 POPLARWOOD CT, SUITE 203, RALEIGH, NC 27604(919) 571-2932 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 6, 2026, Aug 27, 2026, Jan 7, 2026 (3 updates tracked since 2026).

About Mary Marshall Simonson Lpc NPPES

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

MARY MARSHALL SIMONSON LPC (NPI 1609142702) is an individual mental health provider in Raleigh, North Carolina, licensed in North Carolina (8492) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Cary, and is a graduate of Johns Hopkins University School Of Medicine (2012).

NPPES Registry Identity

NPI1609142702
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMARY MARSHALL SIMONSONCredential: LPC
Location Address3125 POPLARWOOD CT, SUITE 203Raleigh, NC 27604-1084
Mailing Address408 Heritage Village LnApex, NC 27502-8492 · (910) 619-4650
Sole ProprietorNo
Medical School CMSJohns Hopkins University School Of MedicineGraduated 2012
Enumeration DateMarch 22, 2012
Last NPPES UpdateOctober 6, 20263 updates tracked since enumeration
NPPES CertifiedOctober 6, 2026
✔ NPI 1609142702 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in NC · 8492
3125 POPLARWOOD CT, Raleigh, NC 27604

Secondary Practice Location 1

Location 1600 New Waverly Pl Ste 203Cary, NC 27518-7404 · Phone (919) 410-7083 · Fax (919) 436-2144

Other Identifiers 1

Medicaid5917231NC

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Marshall Simonson Lpc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133578875
PECOS Enrollment IDI20231207000126
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 Mary Simonson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Family Medicine
4905 GREEN RD, STE 100
Raleigh, NC 27616
  • Reassigned Medicare billing, North Carolina enrollment
  • 88 clinicians in this Medicare group

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 20

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

Social Worker (Clinical)
3125 POPLARWOOD CT, ASPEN BLDG., SUITE 100
RALEIGH, NC 27604
Social Worker (Clinical)
3125 POPLARWOOD CT, THE ASPEN BLDG STE 100
RALEIGH, NC 27604
Counselor (Mental Health)
3125 POPLARWOOD CT
RALEIGH, NC 27604
Nurse Practitioner
3125 POPLARWOOD CT, ASPEN BLDG, SUITE 100
RALEIGH, NC 27604
Social Worker (Clinical)
3125 POPLARWOOD CT, SUITE 203
RALEIGH, NC 27604
Counselor (Mental Health)
3125 POPLARWOOD CT
RALEIGH, NC 27604
Social Worker (Clinical)
3125 POPLARWOOD CT
RALEIGH, NC 27604
Counselor (Addiction (Substance Use Disorder))
3125 POPLARWOOD CT, SUITE #121
RALEIGH, NC 27604

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 Mary Simonson's NPI number?

The NPI number for Mary Simonson is 1609142702. It was assigned to this individual provider in the NPPES registry on March 22, 2012.

Where is Mary Simonson located?

Mary Simonson practices at 3125 Poplarwood Ct Suite 203, Raleigh, NC 27604. The listed phone number is (919) 571-2932.

What is Mary Simonson's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Mary Simonson enrolled in Medicare?

Yes. Mary Simonson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Mary Simonson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Simonson reassigns Medicare benefits to Raleigh Durham Medical Group PA (Raleigh, NC). 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 Mary Simonson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Simonson accept?

Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee, AmeriHealth Caritas Next and Blue Cross and Blue Shield of NC and 3 other insurers list Mary Simonson 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 Mary Simonson was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.