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

ROBERT JUDSON WILLIAMS ANP
NPI 1407825987
Nurse Practitioner - Adult Health in Jackson, MS

Active since March 16, 2006PECOS Enrolled
7275 S SIWELL RD, JACKSON, MS 39272(601) 373-7722(601) 373-7378 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Robert Judson Williams Anp NPPES

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

ROBERT JUDSON WILLIAMS ANP (NPI 1407825987) is an individual adult health provider in Jackson, Mississippi, licensed in Mississippi (R703788) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1407825987
Entity TypeIndividualMale
Primary Taxonomy363LA2200X
Provider Legal NameROBERT JUDSON WILLIAMSCredential: ANP
Location Address7275 S SIWELL RDJackson, MS 39272-9776
Mailing Address1151 N State St, Suite 408Jackson, MS 39202-2407 · (601) 373-7722 · Fax (601) 373-7378
Fax(601) 373-7378
Sole ProprietorNo
Enumeration DateMarch 16, 2006
Last NPPES UpdateSeptember 29, 2026
✔ NPI 1407825987 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in MS · R703788
7275 S SIWELL RD, Jackson, MS 39272

Other Identifiers 6

Medicaid00114465MS
Other168390702MS · Us Dept Of Labor
Other753068151MS · Ms Physicians Care Networ
Other753068151008MS · Tricare
OtherP00302039MS · Rr Medicare - Found
Other753068151MS · Ms Health Partners

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert Judson Williams Anp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Robert Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

General Acute Care Hospital
300 3RD AVE SE
Magee, MS 39111
  • Reassigned Medicare billing, Mississippi enrollment
  • Medicare enrollment name: Magee Benevolent Association
  • 87 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 39272 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
$80.50 typical visit price
range $51.65 – $159.18
Typical copayment $20.12 (range $12.91 – $39.79)
Most-billed visit code 99203
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.

Other Providers at the Same Location NPPES 9

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

Physician Assistant (Medical)
7275 S SIWELL RD
JACKSON, MS 39272
Family Medicine
7275 S SIWELL RD
JACKSON, MS 39272
Physician Assistant
7275 S SIWELL RD
BYRAM, MS 39272
Family Medicine
7275 S SIWELL RD
JACKSON, MS 39272
Physician Assistant
7275 S SIWELL RD
BYRAM, MS 39272
Family Medicine
7275 S SIWELL RD
BYRAM, MS 39272
Nurse Practitioner (Family)
7275 S SIWELL RD
BYRAM, MS 39272
Family Medicine
7275 S SIWELL RD
BYRAM, MS 39272

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 Robert Williams's NPI number?

The NPI number for Robert Williams is 1407825987. It was assigned to this individual provider in the NPPES registry on March 16, 2006.

Where is Robert Williams located?

Robert Williams practices at 7275 S Siwell Rd, Jackson, MS 39272. The listed phone number is (601) 373-7722.

What is Robert Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Robert Williams enrolled in Medicare?

Yes. Robert Williams is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Robert Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Williams reassigns Medicare benefits to Magee Benevolent Associatino (Magee, MS). 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 Robert Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Robert Williams was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 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.