MRS. KATHRYN GRANGER OLIVIER RDN, LDN
NPI 1023816360
Dietitian, Registered - Nutrition, Oncology in Baton Rouge, LA

Q: What is Kathryn Olivier's NPI number?

The NPI number for Kathryn Olivier is 1023816360. It was assigned to this individual provider in the NPPES registry on March 4, 2025.

Q: What is Kathryn Olivier's specialty?

The primary specialty registered for this NPI is Dietitian, Registered, specializing in Nutrition, Oncology, with taxonomy code 133VN1301X.

Q: When was this NPI record last updated?

The NPPES record for Kathryn Olivier was last updated on March 27, 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.

Active since March 04, 2025

4950 ESSEN LN, BATON ROUGE, LA 70809(225) 521-1216 Get Directions Write a Review

NPPES record last updated: March 27, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 27, 2025, Mar 4, 2025 (2 updates tracked since 2025).

On this page

About Mrs. Kathryn Granger Olivier Rdn, Ldn NPPES

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

MRS. KATHRYN GRANGER OLIVIER RDN, LDN (NPI 1023816360) is an individual nutrition, oncology provider in Baton Rouge, Louisiana, licensed in Louisiana (2681) and active in the NPI registry since March 2025.

NPPES Registry Identity

NPI1023816360

Entity TypeIndividualFemale

Primary Taxonomy133VN1301X

Provider Legal NameMRS. KATHRYN GRANGER OLIVIERCredential: RDN, LDN

Location Address4950 ESSEN LNBaton Rouge, LA 70809-3738

Mailing Address4950 Essen LnBaton Rouge, LA 70809-3738 · (225) 521-1216

Phone(225) 521-1216

Sole ProprietorNo

Enumeration DateMarch 4, 2025

Last NPPES UpdateMarch 27, 20252 updates tracked since enumeration

NPPES CertifiedMarch 27, 2025

✔ NPI 1023816360 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, Registered · Nutrition, OncologyDietary & Nutritional Service Providers

Taxonomy Code133VN1301X

License✔ Licensed in LA · 2681

Definition

An individual who is a Board Certified Specialist in Oncology Nutrition and provides direct nutrition care for individuals at risk for or diagnosed with cancer. RDNs working directly with individuals at risk for, or diagnosed with, any type of malignancy or pre-malignant condition, in a variety of settings (e.g. hospitals, clinics, cancer centers, hospices, public health), OR indirectly through roles in management, education, industry, and research practice linked specifically to oncology nutrition. RDN who works indirectly with oncology nutrition through roles in management, education, industry, and research.

4950 ESSEN LN, Baton Rouge, LA 70809

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, HMO Louisiana, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Kathryn Granger Olivier Rdn, Ldn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Mary Bird Perkins Cancer Center

Same address

Clinical Medical Laboratory

4950 ESSEN LANE
Baton Rouge, LA 70809

Reassigned Medicare billing, Louisiana enrollment
120 clinicians in this Medicare group

NPI 1295833580 (225) 215-1223

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.

DR. DAVID SAM HANSON MD

Internal Medicine (Hematology & Oncology)

4950 ESSEN LN, SUITE 500
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-1311

DUSTIN DAVID DENICOLA N.P.

Nurse Practitioner (Adult Health)

4950 ESSEN LN, SUITE 300
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 490-8882

MS. MARTHA A BROUSSARD CRNA

Nurse Anesthetist, Certified Registered

4950 ESSEN LN, REGIONAL EYE SURGERY CENTER
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 214-6688

AULDYN FONTAINE HIRSCHEY N.P.

Nurse Practitioner (Adult Health)

4950 ESSEN LN, SUITE 300
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 757-0343

DR. DEBORAH ALISON ABERNATHY MD

Internal Medicine (Hematology & Oncology)

4950 ESSEN LN, SUITE 300
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 757-0343

JINGYA WANG M.D.

Radiology (Radiation Oncology)

4950 ESSEN LN
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-0847

OUR LADY OF THE LAKE PHYSICIAN GROUP LLC

Internal Medicine (Hematology & Oncology)

4950 ESSEN LN
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-1311

LAUREN ZATARAIN M.D.

Internal Medicine (Hematology & Oncology)

4950 ESSEN LN, SUITE 300
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 757-0343

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 Kathryn Olivier's NPI number?

The NPI number for Kathryn Olivier is 1023816360. It was assigned to this individual provider in the NPPES registry on March 4, 2025.

Where is Kathryn Olivier located?

Kathryn Olivier practices at 4950 Essen Ln, Baton Rouge, LA 70809. The listed phone number is (225) 521-1216.

What is Kathryn Olivier's specialty?

The primary specialty registered for this NPI is Dietitian, Registered, specializing in Nutrition, Oncology, with taxonomy code 133VN1301X.

Is Kathryn Olivier enrolled in Medicare?

Yes. Kathryn Olivier is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kathryn Olivier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Olivier reassigns Medicare benefits to Mary Bird Perkins Cancer Center (Baton Rouge, LA). 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 Kathryn Olivier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kathryn Olivier accept?

Health plans from Blue Cross and Blue Shield of Louisiana, HMO Louisiana and UnitedHealthcare list Kathryn Olivier 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 Kathryn Olivier was last updated on March 27, 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.