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

Dr. John Robert Mack, DC

Individual provider Chiropractor · NPI 1235276221

Dr. John Robert Mack, DC is registered under Chiropractic in White Bear Lake, Minnesota. Graduated from Northwestern College of Chiropractic in 2001, 25 years ago. Practices with Hmms Holdings PLLC, a 4-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
25
Trained at
Northwestern College of Chiropractic
Licensed in
MN
In the registry since
2007
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

935 Wildwood Rd
White Bear Lake, MN 55115-1847 Not confirmed with CMS for 19 years — call before visiting
Phone: (651) 779-4263
Fax: (651) 779-4274
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 4261 (MN)

Record details

NPI number1235276221
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedJanuary 31, 2007
Last updated in NPPESJuly 9, 2007

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolNORTHWESTERN COLLEGE OF CHIROPRACTIC
Graduated 2001 (25 years in practice)
Group practice Hmms Holdings Pllc — 4 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 patients12
Services billed 150 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Hmms Holdings PLLC

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

Other providers in White Bear Lake