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DR. HANNAH DIXON O'BRIEN DC
NPI 1457815987
Chiropractor in Nashville, TN

Active since January 29, 2019Accepts Medicare Assignment
211 OLD HICKORY BLVD, NASHVILLE, TN 37221(615) 646-1003 Get Directions Write a Review

NPPES record last updated: February 12, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Hannah Dixon O'brien Dc NPPES

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

DR. HANNAH DIXON O'BRIEN DC (NPI 1457815987) is an individual chiropractor in Nashville, Tennessee, licensed in Tennessee (3169) and active in the NPI registry since January 2019. She is a graduate of Palmer College Chiropractic - West Sunnyvale (2018).

NPPES Registry Identity

NPI1457815987
Entity TypeIndividualFemale
Primary Taxonomy111N00000X
Provider Legal NameDR. HANNAH DIXON O'BRIENCredential: DC
Location Address211 OLD HICKORY BLVDNashville, TN 37221-1301
Mailing Address211 Old Hickory BlvdNashville, TN 37221-1301 · (615) 646-1003
Phone(615) 646-1003
Sole ProprietorNo
Medical School CMSPalmer College Chiropractic - West SunnyvaleGraduated 2018
Enumeration DateJanuary 29, 2019
Last NPPES UpdateFebruary 12, 2024
NPPES CertifiedFebruary 12, 2024
✔ NPI 1457815987 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in TN · 3169
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.
211 OLD HICKORY BLVD, Nashville, TN 37221
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Hannah Dixon O'brien Dc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8628318508
PECOS Enrollment IDI20190313001783

Medicare Billing Reassignment

Medicare enrollment records show Hannah O'brien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dixon Center Of Chiropractic Inc
Same address
Chiropractor
211 OLD HICKORY BLVD
Nashville, TN 37221
  • Reassigned Medicare billing, Tennessee enrollment
  • 4 clinicians in this Medicare group
NPI 1437358025 (615) 646-1003

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Chiropractic manipulative treatment, 3-4 spinal regions 98941
Chiropractic manipulative treatment for 3-4 spinal regions involves a trained professional applying controlled force to specific areas of your spine. This can help alleviate pain, improve physical function, and support your body's natural healing process.
73 services18 patients
Chiropractic manipulative treatment, 1-2 spinal regions 98940
Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's physical function. In this service, a chiropractor applies controlled force to 1-2 spinal regions. This helps to restore mobility and alleviate discomfort in those areas.
65 services17 patients

Other Providers at the Same Location NPPES 6

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

DR. CHRISTY D DIAZ D.C.
Chiropractor
211 OLD HICKORY BLVD
NASHVILLE, TN 37221
Davidson County (615) 646-1003
MRS. WENONA E DOTSON FNP-C
Nurse Practitioner (Family)
211 OLD HICKORY BLVD
NASHVILLE, TN 37221
Davidson County (615) 646-1003
DR. ANDREW S DIXON D.C.
Chiropractor
211 OLD HICKORY BLVD
NASHVILLE, TN 37221
Davidson County (615) 646-1003
DIXON CENTER OF CHIROPRACTIC INC
Chiropractor
211 OLD HICKORY BLVD
NASHVILLE, TN 37221
Davidson County (615) 646-1003
DR. JASON E PAYNE D.C.
Chiropractor
211 OLD HICKORY BLVD
NASHVILLE, TN 37221
Davidson County (615) 646-1003
ALAN RAY POWERS D.C
Chiropractor
211 OLD HICKORY BLVD
NASHVILLE, TN 37221
Davidson County (615) 646-1003

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 Hannah O'brien's NPI number?

The NPI number for Hannah O'brien is 1457815987. It was assigned to this individual provider in the NPPES registry on January 29, 2019.

Where is Hannah O'brien located?

Hannah O'brien practices at 211 Old Hickory Blvd, Nashville, TN 37221. The listed phone number is (615) 646-1003.

What is Hannah O'brien's specialty?

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

Is Hannah O'brien enrolled in Medicare?

Yes. Hannah O'brien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Hannah O'brien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hannah O'brien reassigns Medicare benefits to Dixon Center Of Chiropractic Inc (Nashville, TN). 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 Hannah O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hannah O'brien accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 2 other insurers list Hannah O'brien 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 Hannah O'brien was last updated on February 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.