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NIKKI HALLA DEVENNY WALKER M.S., CCC-SLP
NPI 1265168801
Speech-Language Pathologist in Mobile, AL

Active since July 26, 2022
1610 CENTER ST STE B, MOBILE, AL 36604(251) 415-1670(251) 415-1671 Get Directions Write a Review

NPPES record last updated: March 13, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 13, 2025, Jul 26, 2022 (2 updates tracked since 2022).

About Nikki Halla Devenny Walker M.s., Ccc-slp NPPES

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

NIKKI HALLA DEVENNY WALKER M.S., CCC-SLP (NPI 1265168801) is an individual speech-language pathologist provider in Mobile, Alabama, licensed in Alabama (5769) and active in the NPI registry since July 2022.

NPPES Registry Identity

NPI1265168801
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameNIKKI HALLA DEVENNY WALKERCredential: M.S., CCC-SLP
Location Address1610 CENTER ST STE BMobile, AL 36604-1543
Mailing AddressPo Box 746450Atlanta, GA 30374-6450 · (866) 401-3057 · Fax (318) 868-6430
Phone(251) 415-1670
Fax(251) 415-1671
Sole ProprietorNo
Enumeration DateJuly 26, 2022
Last NPPES UpdateMarch 13, 20252 updates tracked since enumeration
NPPES CertifiedMarch 13, 2025
✔ NPI 1265168801 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
Licenses✔ Licensed in AL · 5769✔ Licensed in WY · SP-1274
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
1610 CENTER ST STE B, Mobile, AL 36604
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Alabama, Oscar Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nikki Halla Devenny Walker M.s., Ccc-slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Nikki Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Usa Health Physician Billing Services LLC
0.1 mi
Obstetrics & Gynecology
1601 CENTER ST
Mobile, AL 36604
  • Reassigned Medicare billing, Alabama enrollment
  • 857 clinicians in this Medicare group
NPI 1013574722 (251) 415-1496

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

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.

USA HEALTH PHYSICIAN BILLING SERVICES LLC
Physical Therapist
1610 CENTER ST STE B
MOBILE, AL 36604
Mobile County (251) 415-1670
UNIVERSITY OF SOUTH ALABAMA
Clinic/Center (Occupational Medicine)
1610 CENTER ST STE B
MOBILE, AL 36604
Mobile County (251) 415-1670
JAMIE STAUTER
Speech-Language Pathologist
1610 CENTER ST STE B
MOBILE, AL 36604
Mobile County (251) 415-1670
JENNIFER TRENIER MCCLENDON
Speech-Language Pathologist
1610 CENTER ST STE B
MOBILE, AL 36604
Mobile County (251) 415-1670
JOYCE KELTON HUFFMAN MS, CCC-SLP
Speech-Language Pathologist
1610 CENTER ST STE B
MOBILE, AL 36604
Mobile County (251) 415-1670
USA CHILDREN'S AND WOMEN'S HOSPITAL
General Acute Care Hospital (Children)
1610 CENTER ST STE B
MOBILE, AL 36604
Mobile County (251) 415-1670
ELISABETH CLARK
Speech-Language Pathologist
1610 CENTER ST STE B
MOBILE, AL 36604
Mobile County (251) 415-1670
UNIVERSITY OF SOUTH ALABAMA
Clinic/Center (Hearing and Speech)
1610 CENTER ST STE B
MOBILE, AL 36604
Mobile County (251) 415-1670

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 Nikki Walker's NPI number?

The NPI number for Nikki Walker is 1265168801. It was assigned to this individual provider in the NPPES registry on July 26, 2022.

Where is Nikki Walker located?

Nikki Walker practices at 1610 Center St Ste B, Mobile, AL 36604. The listed phone number is (251) 415-1670.

What is Nikki Walker's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Nikki Walker enrolled in Medicare?

Yes. Nikki Walker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nikki Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nikki Walker reassigns Medicare benefits to Usa Health Physician Billing Services LLC (Mobile, AL). 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 Nikki Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nikki Walker accept?

Health plans from Blue Cross and Blue Shield of Alabama and Oscar Health Plan, Inc. list Nikki 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 Nikki Walker was last updated on March 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.