DR. MATTHEW LEWIS WALKER I MD
NPI 1063823896
Psychiatry & Neurology - Psychiatry in Jackson, MS
About Dr. Matthew Lewis Walker I Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW LEWIS WALKER I MD (NPI 1063823896) is an individual psychiatry provider in Jackson, Mississippi, licensed in Mississippi (T-2876) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS and is a graduate of Louisiana State University School Of Medicine In Shreveport (2014).
NPPES Registry Identity
Specialties & Licenses
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. Matthew Lewis Walker I Md 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
2Medicare enrollment records show Matthew Walker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Smyrna, GA 30080
- Reassigned Medicare billing, Georgia enrollment
- 64 clinicians in this Medicare group
Seneca, SC 29678
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: Prisma Health University Medical Group
- 3,281 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39216 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
JACKSON, MS 39216
JACKSON, MS 39216
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 Matthew Walker's NPI number?
The NPI number for Matthew Walker is 1063823896. It was assigned to this individual provider in the NPPES registry on May 14, 2014.
Where is Matthew Walker located?
Matthew Walker practices at 2500 N State St, Jackson, MS 39216. The listed phone number is (601) 984-5601.
What is Matthew Walker's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Matthew Walker enrolled in Medicare?
Yes. Matthew Walker 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 Matthew Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Walker reassigns Medicare benefits to 2 organizations: Saint Joseph's Mercy Care Services, Inc. (Smyrna, GA) and Ghs Partners In Health, Inc. (Seneca, SC). 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 Matthew Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Walker accept?
Health plans from Oscar Health list Matthew Walker 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 Matthew Walker was last updated on July 21, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. Matthew Lewis Walker I, MD · NPI 1063823896
Psychiatry physician in Jackson, Mississippi. Individual provider, active in the CMS NPPES registry since May 14, 2014.
## Identity
- **NPI:** 1063823896 (Entity type: Individual)
- **Enumerated:** May 14, 2014
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** T-2876 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 2500 N STATE ST, Jackson, MS 39216-4500
- **Phone:** (601) 984-5601
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Saint Joseph's Mercy Care Services, Inc. (NPI 1205243029, Smyrna, GA); Ghs Partners In Health, Inc. (NPI 1457730814, Seneca, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Louisiana State University School Of Medicine In Shreveport, class of 2014
## Record status
- **NPPES last updated:** July 21, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1063823896) · Data from the CMS NPPES public registry.