KATHRYN WILLIS CALLAHAN MS, RDN, LD
NPI 1356992937
Dietitian, Registered in Boise, ID

Q: What is Kathryn Callahan's NPI number?

The NPI number for Kathryn Callahan is 1356992937. It was assigned to this individual provider in the NPPES registry on September 24, 2019.

Q: What is Kathryn Callahan's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Q: When was this NPI record last updated?

The NPPES record for Kathryn Callahan was last updated on May 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since September 24, 2019

3350 W AMERICANA TER, STE 215, BOISE, ID 83706(208) 629-2441(208) 342-0667 Get Directions Write a Review

NPPES record last updated: May 13, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 13, 2020, Sep 24, 2019 (2 updates tracked since 2019).

On this page

About Kathryn Willis Callahan Ms, Rdn, Ld NPPES

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

KATHRYN WILLIS CALLAHAN MS, RDN, LD (NPI 1356992937) is an individual dietitian, registered in Boise, Idaho, licensed in Idaho (D-1152) and active in the NPI registry since September 2019.

NPPES Registry Identity

NPI1356992937

Entity TypeIndividualFemale

Primary Taxonomy133V00000X

Provider Legal NameKATHRYN WILLIS CALLAHANCredential: MS, RDN, LD

Location Address3350 W AMERICANA TER, STE 215Boise, ID 83706-2545

Mailing Address3350 W Americana Ter, Ste 215Boise, ID 83706-2545 · (208) 629-2441

Phone(208) 629-2441

Fax(208) 342-0667

Sole ProprietorNo

Enumeration DateSeptember 24, 2019

Last NPPES UpdateMay 13, 20202 updates tracked since enumeration

NPPES CertifiedMay 13, 2020

✔ NPI 1356992937 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers

Taxonomy Code133V00000X

License✔ Licensed in ID · D-1152

Definition

A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.

3350 W AMERICANA TER, Boise, ID 83706

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Select Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kathryn Willis Callahan Ms, Rdn, Ld is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Nutrition Dejunked LLC

Same address

Dietitian, Registered

3350 W AMERICANA TER STE 215
Boise, ID 83706

Reassigned Medicare billing, Idaho enrollment
2 clinicians in this Medicare group

NPI 1437779469 (208) 629-2441

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 9

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

MARCI M DANIELSON M.S.

Marriage & Family Therapist

3350 W AMERICANA TER, SUITE 215
BOISE, ID 83706

Ada County (208) 989-0333

MRS. BIANCA ANNA VILLASANO

Counselor (Mental Health)

3350 W AMERICANA TER
BOISE, ID 83706

Ada County (626) 303-1541

NICHOLE JORDAN M. COUN., LCPC, NCC

Counselor (Mental Health)

3350 W AMERICANA TER, SUITE #215
BOISE, ID 83706

Ada County (208) 342-7030

MRS. KRISTINE ANN KIRSCH MCOUN., LPC

Counselor (Mental Health)

3350 W AMERICANA TER, SUITE #215
BOISE, ID 83706

Ada County (208) 830-8658

MS. KAREN KRISTINE NEWKIRK LCPC

Counselor (Mental Health)

3350 W AMERICANA TER, SUITE 300
BOISE, ID 83706

Ada County (208) 343-1113

AMEE HARDY, LLC

Counselor (Mental Health)

3350 W AMERICANA TER
BOISE, ID 83706

Ada County (208) 254-1433

SUZANNE BURTON LPC

Counselor (Professional)

3350 W AMERICANA TER, SUITE 215
BOISE, ID 83706

Ada County (208) 287-9420

AMEE E HARDY LCPC

Counselor (Mental Health)

3350 W AMERICANA TER
BOISE, ID 83706

Ada County (208) 254-1433

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 Callahan's NPI number?

The NPI number for Kathryn Callahan is 1356992937. It was assigned to this individual provider in the NPPES registry on September 24, 2019.

Where is Kathryn Callahan located?

Kathryn Callahan practices at 3350 W Americana Ter Ste 215, Boise, ID 83706. The listed phone number is (208) 629-2441.

What is Kathryn Callahan's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Kathryn Callahan enrolled in Medicare?

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

Which organization bills Medicare for Kathryn Callahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Callahan reassigns Medicare benefits to Nutrition Dejunked LLC (Boise, ID). 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 Callahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kathryn Callahan accept?

Health plans from PacificSource Health Plans and Select Health list Kathryn Callahan 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 Callahan was last updated on May 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.