MARY CAROLINE KING HAYNES SLP
NPI 1851747588
Speech-Language Pathologist in Ridgeland, MS

Active since May 12, 2016
950 E COUNTY LINE RD, SUITE E, RIDGELAND, MS 39157(601) 853-9747(601) 898-4761 Get Directions Write a Review

NPPES record last updated: August 17, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 17, 2021, Apr 17, 2017, May 12, 2016 (3 updates tracked since 2016).

About Mary Caroline King Haynes Slp NPPES

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

MARY CAROLINE KING HAYNES SLP (NPI 1851747588) is an individual speech-language pathologist provider in Ridgeland, Mississippi, licensed in Mississippi (S4193) and active in the NPI registry since May 2016.

NPPES Registry Identity

NPI1851747588
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMARY CAROLINE KING HAYNESCredential: SLP
Location Address950 E COUNTY LINE RD, SUITE ERidgeland, MS 39157-1928
Mailing Address950 E County Line Rd, Suite ERidgeland, MS 39157-1928 · (601) 853-9747 · Fax (601) 898-4761
Fax(601) 898-4761
Sole ProprietorNo
Enumeration DateMay 12, 2016
Last NPPES UpdateAugust 17, 20213 updates tracked since enumeration
NPPES CertifiedAugust 17, 2021
✔ NPI 1851747588 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
License✔ Licensed in MS · S4193
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.
950 E COUNTY LINE RD, Ridgeland, MS 39157

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Caroline King Haynes Slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Physical Therapist
110 N WALMART DR, SUITE F
Louisville, MS 39339
  • Reassigned Medicare billing, Mississippi enrollment
  • 324 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.

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.

Physical Therapist
950 E COUNTY LINE RD, SUITE C
RIDGELAND, MS 39157
Occupational Therapist
950 E COUNTY LINE RD, SUITE E
RIDGELAND, MS 39157
Occupational Therapist
950 E COUNTY LINE RD, SUITE E
RIDGELAND, MS 39157
Physical Therapist
950 E COUNTY LINE RD, SUITE E
RIDGELAND, MS 39157
Occupational Therapist
950 E COUNTY LINE RD, SUITE C
RIDGELAND, MS 39157
Physical Therapist
950 E COUNTY LINE RD, SUITE D
RIDGELAND, MS 39157
Occupational Therapist
950 E COUNTY LINE RD, STE E
RIDGELAND, MS 39157
Speech-Language Pathologist
950 E COUNTY LINE RD, SUITE C
RIDGELAND, MS 39157

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 Mary Haynes's NPI number?

The NPI number for Mary Haynes is 1851747588. It was assigned to this individual provider in the NPPES registry on May 12, 2016.

Where is Mary Haynes located?

Mary Haynes practices at 950 E County Line Rd Suite E, Ridgeland, MS 39157. The listed phone number is (601) 853-9747.

What is Mary Haynes's specialty?

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

Is Mary Haynes enrolled in Medicare?

Yes. Mary Haynes is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Haynes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Haynes reassigns Medicare benefits to Drayer Physical Therapy Mississippi LLC (Louisville, 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 Mary Haynes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Haynes accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee list Mary Haynes 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 Mary Haynes was last updated on August 17, 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.