MALLORIE GRETCHEN GREGG DC
NPI 1447041611
Chiropractor in Rockville, IN

Q: What is Mallorie Gregg's NPI number?

The NPI number for Mallorie Gregg is 1447041611. It was assigned to this individual provider in the NPPES registry on May 15, 2025.

Q: What is Mallorie Gregg's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Q: When was this NPI record last updated?

The NPPES record for Mallorie Gregg was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 May 15, 2025

393 W US HIGHWAY 36, ROCKVILLE, IN 47872(765) 569-3440(765) 569-3362 Get Directions Write a Review

NPPES record last updated: June 23, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Mallorie Gretchen Gregg Dc NPPES

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

MALLORIE GRETCHEN GREGG DC (NPI 1447041611) is an individual chiropractor in Rockville, Indiana, licensed in Indiana (08003515A) and active in the NPI registry since May 2025. She is a graduate of Other (2025).

NPPES Registry Identity

NPI1447041611

Entity TypeIndividualFemale

Primary Taxonomy111N00000X

Provider Legal NameMALLORIE GRETCHEN GREGGCredential: DC

Location Address393 W US HIGHWAY 36Rockville, IN 47872-7384

Mailing Address393 W Us Highway 36Rockville, IN 47872-7384 · (765) 569-3440 · Fax (765) 569-3362

Phone(765) 569-3440

Fax(765) 569-3362

Sole ProprietorNo

Medical School CMSOtherGraduated 2025

Enumeration DateMay 15, 2025

Last NPPES UpdateJune 23, 2026

NPPES CertifiedJune 23, 2026

✔ NPI 1447041611 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers

Taxonomy Code111N00000X

License✔ Licensed in IN · 08003515A

Definition

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

393 W US HIGHWAY 36, Rockville, IN 47872

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mallorie Gretchen Gregg Dc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5092210732

PECOS Enrollment IDI20250924003098

Medicare Billing Reassignment

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

Dr Larry J Russell Inc

26 mi

Clinic/Center

406 E SOUTH BLVD
Crawfordsville, IN 47933

Reassigned Medicare billing, Indiana enrollment
3 clinicians in this Medicare group

NPI 1225388044 (765) 362-1111

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

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

FERGUSON CHIROPRACTIC CENTER

Chiropractor

393 W US HIGHWAY 36
ROCKVILLE, IN 47872

Parke County (765) 569-3440

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 Mallorie Gregg's NPI number?

The NPI number for Mallorie Gregg is 1447041611. It was assigned to this individual provider in the NPPES registry on May 15, 2025.

Where is Mallorie Gregg located?

Mallorie Gregg practices at 393 W Us Highway 36, Rockville, IN 47872. The listed phone number is (765) 569-3440.

What is Mallorie Gregg's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Mallorie Gregg enrolled in Medicare?

Yes. Mallorie Gregg is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mallorie Gregg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mallorie Gregg reassigns Medicare benefits to Dr Larry J Russell Inc (Crawfordsville, IN). 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 Mallorie Gregg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mallorie Gregg accept?

Health plans from Anthem Blue Cross and Blue Shield list Mallorie Gregg 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 Mallorie Gregg was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.