1. Home
  2. Directory
  3. South Carolina
  4. Columbia
  5. Nurse Practitioner
  6. NPI Profile

DR. MARGARET SEXTON JOHNSON APRN BC, DNP
NPI 1750535530
Nurse Practitioner in Columbia, SC

Active since November 06, 2008PECOS EnrolledAccepts Medicare Assignment
1218 MILLER AVE, COLUMBIA, SC 29203(803) 497-9611(803) 764-2003 Get Directions Write a Review

NPPES record last updated: December 4, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 4, 2025, Dec 30, 2022, Sep 20, 2018 (3 updates tracked since 2018).

About Dr. Margaret Sexton Johnson Aprn Bc, Dnp NPPES

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

DR. MARGARET SEXTON JOHNSON APRN BC, DNP (NPI 1750535530) is an individual nurse practitioner in Columbia, South Carolina, licensed in South Carolina (3751) and active in the NPI registry since November 2008. She is enrolled in Medicare PECOS and is a graduate of University Of South Carolina School Of Medicine (2008).

NPPES Registry Identity

NPI1750535530
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameDR. MARGARET SEXTON JOHNSONCredential: APRN BC, DNP
Location Address1218 MILLER AVEColumbia, SC 29203-6417
Mailing Address108 Saluda Woods CtWest Columbia, SC 29169-3480 · (803) 497-9611 · Fax (803) 764-2003
Phone(803) 497-9611
Fax(803) 764-2003
Sole ProprietorNo
Medical School CMSUniversity Of South Carolina School Of MedicineGraduated 2008
Enumeration DateNovember 6, 2008
Last NPPES UpdateDecember 4, 20253 updates tracked since enumeration
NPPES CertifiedDecember 4, 2025
✔ NPI 1750535530 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in SC · 3751
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License APN3751 (SC)
Also ListedNurse Practitioner · Psychiatric/Mental HealthTaxonomy 363LP0808X · License APN3751 (SC)
1218 MILLER AVE, Columbia, SC 29203
Open in Google Maps ↗

Other Names 1

Other Name (5)Dr. Maggie S Johnson Aprn Bc, Dnp

Other Identifiers 3

MedicaidNP1369SC
Other3335SC · Medicare
Medicaid421504SC

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Margaret Sexton Johnson Aprn Bc, Dnp 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 ID3375691553
PECOS Enrollment IDI20090427000528
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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
44 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29203 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.18 typical visit price
range $53.57 – $163.84
Typical copayment $20.79 (range $13.39 – $40.96)
Most-billed visit code 99203
Established Patient
$95.12 typical visit price
range $16.96 – $133.52
Typical copayment $23.78 (range $4.24 – $33.38)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

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

VERONIQUE GILMORE MA, LPC
Counselor (Professional)
1218 MILLER AVE
COLUMBIA, SC 29203
Richland County (803) 497-9611
KIM J GILMORE CNS, NP, DNP
Clinical Nurse Specialist (Psychiatric/Mental Health, Adult)
1218 MILLER AVE
COLUMBIA, SC 29203
Richland County (803) 497-9611

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 Margaret Johnson's NPI number?

The NPI number for Margaret Johnson is 1750535530. It was assigned to this individual provider in the NPPES registry on November 6, 2008. The provider is also known as Dr. Maggie S Johnson Aprn Bc, Dnp.

Where is Margaret Johnson located?

Margaret Johnson practices at 1218 Miller Ave, Columbia, SC 29203. The listed phone number is (803) 497-9611.

What is Margaret Johnson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Margaret Johnson enrolled in Medicare?

Yes. Margaret Johnson 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.

What insurance does Margaret Johnson accept?

Health plans from UnitedHealthcare list Margaret Johnson 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 Margaret Johnson was last updated on December 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.