Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Mark Jacob Pendergrass, DC

Individual provider Chiropractor · NPI 1891038642

Dr. Mark Jacob Pendergrass, DC is registered under Chiropractic in Smyrna, Tennessee. Graduated from Life Chiropractic College in 2012, 14 years ago. Practices with Rock Springs Family Chiropractic, a 2-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
14
Trained at
Life Chiropractic College
Licensed in
TN
In the registry since
2013
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

325 Sam Ridley Pkwy W
Smyrna, TN 37167-5625 Not confirmed with CMS for 11 years — call before visiting
Phone: (615) 239-0907
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 2587 (TN)

Record details

NPI number1891038642
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedMarch 30, 2013
Last updated in NPPESOctober 19, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCHIROPRACTIC
Medical schoolLIFE CHIROPRACTIC COLLEGE
Graduated 2012 (14 years in practice)
Group practice Rock Springs Family Chiropractic — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients14
Services billed 146 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Rock Springs Family Chiropractic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Smyrna