DR. MARK STEPHEN TIERNEY D.C.
NPI 1588754378
Chiropractor - Orthopedic in Reading, MA

Active since October 13, 2006
301 MAIN ST, READING, MA 01867(781) 942-3660(781) 942-1866 Get Directions Write a Review

NPPES record last updated: October 7, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Mark Stephen Tierney D.c. NPPES

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

DR. MARK STEPHEN TIERNEY D.C. (NPI 1588754378) is an individual orthopedic provider in Reading, Massachusetts, licensed in Massachusetts (1909) and active in the NPI registry since October 2006. He is a graduate of Logan College Of Chiropractic (1993).

NPPES Registry Identity

NPI1588754378
Entity TypeIndividualMale
Primary Taxonomy111NX0800X
Provider Legal NameDR. MARK STEPHEN TIERNEYCredential: D.C.
Location Address301 MAIN STReading, MA 01867-3616
Mailing Address103 Hartshorn StReading, MA 01867-2018 · (781) 942-4484
Fax(781) 942-1866
Sole ProprietorYes
Medical School CMSLogan College Of ChiropracticGraduated 1993
Enumeration DateOctober 13, 2006
Last NPPES UpdateOctober 7, 2024
NPPES CertifiedOctober 7, 2024
✔ NPI 1588754378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractor · OrthopedicChiropractic Providers
Taxonomy Code111NX0800X
License✔ Licensed in MA · 1909
Definition
Chiropractic Orthopedics/Neuromusculoskeletal Medicine is defined as that branch of chiropractic medicine that includes the continued acquisition of knowledge relative to both normal functions and diseases of the human body as they relate to the bones, joints, capsules, discs, muscles, ligaments, tendons, their complete neurological and vascular components, referred organ systems and contiguous tissues. This also includes the development and perfection of skills relative to health maintenance when such exists and when not, the investigations, historical review, physical detection, correlative diagnosis development and complete management of any disorder within the bounds defined herein. Also necessary is the delivery of the combined knowledge and skill on a primary basis to patients who both need and desire this service to the eventual outcome of remissions, whenever resolution is not readily achievable. In addition the certified chiropractic orthopedist/neuromusculoskeletal medicine specialist provides consultation services at the request of other qualified doctors seeking assistance in the care of their patients. The chiropractic orthopedist/neuromusculoskeletal medicine specialist may also engage in the teaching and or research of subjects and materials relevant to pursuing the quest for knowledge in the ever changing field of the orthopedic specialty.
301 MAIN ST, Reading, MA 01867

Other Identifiers 1

Medicaid1611461MA

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)

Dr. Mark Stephen Tierney D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7517977226
PECOS Enrollment IDI20060426000112

Medicare Billing Reassignment

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

Orthopedic
301 MAIN ST
Reading, MA 01867
  • Reassigned Medicare billing, Massachusetts enrollment

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

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.
626 services65 patients

Other Providers at the Same Location NPPES

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

Chiropractor (Orthopedic)
301 MAIN ST
READING, MA 01867

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 Mark Tierney's NPI number?

The NPI number for Mark Tierney is 1588754378. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Where is Mark Tierney located?

Mark Tierney practices at 301 Main St, Reading, MA 01867. The listed phone number is (781) 942-3660.

What is Mark Tierney's specialty?

The primary specialty registered for this NPI is Chiropractor, specializing in Orthopedic, with taxonomy code 111NX0800X.

Is Mark Tierney enrolled in Medicare?

Yes. Mark Tierney is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Tierney's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Tierney reassigns Medicare benefits to Tierney Chiropractic (Reading, MA). 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 Mark Tierney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Tierney accept?

Health plans from Providence Health Plan list Mark Tierney 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 Mark Tierney was last updated on October 7, 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.