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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.

MS. NIEKA HARRIS M.D.
NPI 1396825618
Internal Medicine - Gastroenterology in Southaven, MS

Active since October 17, 2006PECOS EnrolledAccepts Medicare Assignment
96.52/100
CMS Quality Rating
363 SOUTHCREST CIR STE 302, SOUTHAVEN, MS 38671(901) 226-4003(901) 227-8591 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2026, Aug 3, 2026, Apr 29, 2026 and 4 more (7 updates tracked since 2016).

About Ms. Nieka Harris M.d. NPPES

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

MS. NIEKA HARRIS M.D. (NPI 1396825618) is an individual gastroenterology provider in Southaven, Mississippi, licensed in Tennessee (74361) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Unc Health Nash, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1396825618
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameMS. NIEKA HARRISCredential: M.D.
Location Address363 SOUTHCREST CIR STE 302Southaven, MS 38671-4737
Mailing Address350 N Humphreys BlvdMemphis, TN 38120-2177 · (901) 226-4003 · Fax (901) 227-8591
Phone(901) 226-4003
Fax(901) 227-8591
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 2006
Enumeration DateOctober 17, 2006
Last NPPES UpdateSeptember 3, 20267 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1396825618 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in TN · 74361✔ Licensed in MS · 35720
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
363 SOUTHCREST CIR STE 302, Southaven, MS 38671
Open in Google Maps ↗

Secondary Practice Locations 6

Location 17601 Southcrest PkwySouthaven, MS 38671-4739 · Phone (901) 226-4003 · Fax (901) 227-8591
Location 21500 W Poplar Ave Ste 201Collierville, TN 38017-0601 · Phone (901) 226-4003 · Fax (901) 227-8591
Location 36019 Walnut Grove RdMemphis, TN 38120-2113 · Phone (901) 226-4003 · Fax (901) 227-8591
Location 480 Humphreys Center Dr Ste 201Memphis, TN 38120-2361 · Phone (901) 226-4003 · Fax (901) 227-8591
Location 52100 Exeter RdGermantown, TN 38138-3922 · Phone (901) 226-4003 · Fax (901) 227-8591
Location 66225 Humphreys BlvdMemphis, TN 38120-2373 · Phone (901) 226-4003 · Fax (901) 227-8591

Other Identifiers 1

Medicaid019041800FL

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 and accepts Medicare assignment

Ms. Nieka Harris M.d. 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 ID547408395
PECOS Enrollment IDI20171031003297, I20251015001879, I20251229001229
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

9

Medicare enrollment records show Nieka Harris reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gastrointestinal Specialists Foundation, Inc
14 mi
Gastroenterology
80 HUMPHREYS CENTER DR STE 200
Memphis, TN 38120
  • Reassigned Medicare billing, Mississippi and Tennessee enrollments
  • 7 clinicians in this Medicare group
NPI 1942546452 (901) 578-2538
Baptist Memorial Medical Group Inc
14 mi
Internal Medicine
8970 WINCHESTER RD
Memphis, TN 38125
  • Reassigned Medicare billing, Tennessee enrollment
  • 581 clinicians in this Medicare group
NPI 1306089206 (901) 227-4068
Columbus Ambulatory Healthcare Services, Inc.
336 mi
Family Medicine
1800 10TH AVE
Columbus, GA 31901
  • Reassigned Medicare billing, Georgia enrollment
  • 391 clinicians in this Medicare group
NPI 1790733244 (706) 571-1120
Hospital Authority Of Valdosta And Lowndes County, Georgia
469 mi
Clinic/Center
603 E DENNIS AVE
Nashville, GA 31639
  • Reassigned Medicare billing, Georgia enrollment
  • 112 clinicians in this Medicare group
NPI 1447591649 (229) 686-2096
Lexington Health Inc
490 mi
Family Medicine
338 E COLUMBIA AVE
Batesburg Leesville, SC 29070
  • Reassigned Medicare billing, South Carolina enrollment
  • 1,219 clinicians in this Medicare group
NPI 1891392221 (803) 604-0066
Prisma Health Medical Group-Midlands
508 mi
Interventional Cardiology
300 PALMETTO HEALTH PKWY STE 400
Columbia, SC 29212
  • Reassigned Medicare billing, South Carolina enrollment
  • 1,466 clinicians in this Medicare group
NPI 1003307166 (803) 765-0871
Nhcs Physicians Inc
688 mi
Physician Assistant
2460 CURTIS ELLIS DRIVE
Rocky Mount, NC 27804
  • Reassigned Medicare billing, North Carolina enrollment
  • 205 clinicians in this Medicare group
NPI 1003028630 (252) 443-8540
Bon Secours Medical Group Richmond Specialty Care LLC
724 mi
Cardiovascular Disease
8580 MAGELLAN PKWY
Richmond, VA 23227
  • Reassigned Medicare billing, Virginia enrollment
  • 581 clinicians in this Medicare group
NPI 1477112225 (804) 627-5573
Sentara Medical Group
783 mi
Family Medicine
824 N MILITARY HWY STE 100
Norfolk, VA 23502
  • Reassigned Medicare billing, Virginia enrollment
  • 1,901 clinicians in this Medicare group
NPI 1265485270 (757) 252-2900

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

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Unc Health Nash

Acute Care Hospitals · Rocky Mount, NC
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number340147
Location2460 Curtis Ellis DriveRocky Mount, NC 27804 · Nash County
Emergency services Birthing friendly

Lexington Medical Center

Acute Care Hospitals · West Columbia, SC
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number420073
Location2720 Sunset BlvdWest Columbia, SC 29169 · Lexington County
Emergency services Birthing friendly

Prisma Health Baptist

Acute Care Hospitals · Columbia, SC
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number420086
Location1330 Taylor At Marion StColumbia, SC 29220 · Richland County
Emergency services Birthing friendly

Bon Secours Memorial Regional Medical Center

Acute Care Hospitals · Mechanicsville, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number490069
Location8260 Atlee RoadMechanicsville, VA 23116 · Hanover County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 38671 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
$120.41 typical visit price
range $51.65 – $159.18
Typical copayment $30.10 (range $12.91 – $39.79)
Most-billed visit code 99204
Established Patient
$92.20 typical visit price
range $16.15 – $129.61
Typical copayment $23.05 (range $4.03 – $32.40)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

96.52/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality93.05
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185
Other-Enteral and Parenteral · category OB005N
1 supplier13 claims455 services$11.19 avg. paid by Medicare
Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements and vitamins, including preparation, any strength, 74 to 100 grams of protein - premix B4197
Other-Enteral and Parenteral · category OB005N
1 supplier13 claims85 services$278.52 avg. paid by Medicare
Parenteral nutrition supply kit; premix, per day B4220
Other-Enteral and Parenteral · category OB005N
1 supplier11 claims77 services$7.97 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Nieka Harris's NPI number?

The NPI number for Nieka Harris is 1396825618. It was assigned to this individual provider in the NPPES registry on October 17, 2006.

Where is Nieka Harris located?

Nieka Harris practices at 363 Southcrest Cir Ste 302, Southaven, MS 38671. The listed phone number is (901) 226-4003.

What is Nieka Harris's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Nieka Harris enrolled in Medicare?

Yes. Nieka Harris 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 organizations bill Medicare for Nieka Harris's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nieka Harris reassigns Medicare benefits to 9 organizations: Gastrointestinal Specialists Foundation, Inc (Memphis, TN), Baptist Memorial Medical Group Inc (Memphis, TN), Columbus Ambulatory Healthcare Services, Inc. (Columbus, GA), Hospital Authority Of Valdosta And Lowndes County, Georgia (Nashville, GA), Lexington Health Inc (Batesburg Leesville, SC) and 4 more organizations, listed in the Medicare section above. 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 Nieka Harris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nieka Harris accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and Cigna Healthcare and 6 other insurers list Nieka Harris 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.

Is Nieka Harris affiliated with any hospitals?

According to CMS data, Nieka Harris is affiliated with Unc Health Nash, Lexington Medical Center, Prisma Health Baptist and Bon Secours Memorial Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Nieka Harris was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 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.