DR. BRENDAN WILLIAMS DO
NPI 1932588407
Internal Medicine in Southaven, MS
About Dr. Brendan Williams Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRENDAN WILLIAMS DO (NPI 1932588407) is an individual internal medicine provider in Southaven, Mississippi, licensed in Mississippi (26703) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, is affiliated with Baptist Memorial Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
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
Dr. Brendan Williams Do 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.
Medicare Billing Reassignments
4Medicare enrollment records show Brendan Williams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Southaven, MS 38671
- Reassigned Medicare billing, Mississippi enrollment
- 92 clinicians in this Medicare group
Memphis, TN 38125
- Reassigned Medicare billing, Arkansas, Mississippi and Tennessee enrollments
- 95 clinicians in this Medicare group
West Memphis, AR 72301
- Reassigned Medicare billing, Arkansas enrollment
- 14 clinicians in this Medicare group
Oak Ridge, TN 37830
- Reassigned Medicare billing, Tennessee enrollment
- 1,085 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.
Areas of Expertise CMS Part B claims 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baptist Memorial Hospital
Acute Care Hospitals · Memphis, TNPhysician 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.
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.
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.
SOUTHAVEN, MS 38671
SOUTHAVEN, MS 38671
SOUTHAVEN, MS 38671
SOUTHAVEN, MS 38671
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 Brendan Williams's NPI number?
The NPI number for Brendan Williams is 1932588407. It was assigned to this individual provider in the NPPES registry on May 29, 2015.
Where is Brendan Williams located?
Brendan Williams practices at 7601 Southcrest Pkwy, Southaven, MS 38671. The listed phone number is (662) 772-2980.
What is Brendan Williams's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Brendan Williams enrolled in Medicare?
Yes. Brendan Williams 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 Brendan Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brendan Williams reassigns Medicare benefits to 4 organizations: Greenbrook Physician Services, LLC (Southaven, MS), Baptist Memorial Medical Group Inc (Memphis, TN), Southeastern Intensivist Services PC (West Memphis, AR) and Southeastern Physician Services PC (Oak Ridge, TN). 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 Brendan Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brendan Williams accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 3 other insurers list Brendan Williams 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 Brendan Williams affiliated with any hospitals?
According to CMS data, Brendan Williams is affiliated with Baptist Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Brendan Williams was last updated on March 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.
# Dr. Brendan Williams, DO · NPI 1932588407
Internal Medicine physician in Southaven, Mississippi. Individual provider, active in the CMS NPPES registry since May 29, 2015.
## Identity
- **NPI:** 1932588407 (Entity type: Individual)
- **Enumerated:** May 29, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 26703 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 7601 SOUTHCREST PKWY, Southaven, MS 38671-4739
- **Phone:** (662) 772-2980 · **Fax:** (662) 772-2960
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Greenbrook Physician Services, LLC (NPI 1801683008, Southaven, MS); Baptist Memorial Medical Group Inc (NPI 1306089206, Memphis, TN); Southeastern Intensivist Services PC (NPI 1912942665, West Memphis, AR); Southeastern Physician Services PC (NPI 1083835441, Oak Ridge, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lincoln Mem Univ, Debusk Col Of Osteopathic Med, class of 2015
## Record status
- **NPPES last updated:** March 12, 2021
- **Other identifiers:** Medicaid 024944600 (FL)
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Source: [NPI Profile](https://npiprofile.com/npi/1932588407) · Data from the CMS NPPES public registry.