Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Justin Curtis Gronholz, DC

Individual provider Chiropractor · NPI 1245520659

Dr. Justin Curtis Gronholz, DC is registered under Chiropractic in Baxter, Minnesota. Graduated from Northwestern College of Chiropractic in 2010, 16 years ago. Practices with Holbrook Family Chiropractic PLLC, a 5-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
16
Trained at
Northwestern College of Chiropractic
Licensed in
MN
In the registry since
2011
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

15574 Edgewood Dr Ste 102
Baxter, MN 56401-6956
Phone: (218) 829-2665
Fax: (218) 829-4855
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 5481 (MN)

Record details

NPI number1245520659
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedApril 19, 2011
Last updated in NPPESJune 17, 2025
Certification dateJune 17, 2025

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolNORTHWESTERN COLLEGE OF CHIROPRACTIC
Graduated 2010 (16 years in practice)
Group practice Holbrook Family Chiropractic Pllc — 5 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 patients96
Services billed 878 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Holbrook Family Chiropractic PLLC

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

Other providers in Baxter