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

Dr. Daniel Mackay, DC

Individual provider Chiropractor · NPI 1144601451

Dr. Daniel Mackay, DC is registered under Chiropractic in Tigard, Oregon. Graduated from Western States College of Chiropractic in 2015, 11 years ago. Practices with S2 Collaborations LLC, a 2-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
11
Trained at
Western States College of Chiropractic
Licensed in
OR
In the registry since
2015
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

7430 SW Cherry Dr
Tigard, OR 97223-8041
Phone: (503) 860-4672
Fax: (503) 296-5992
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 5643 (OR)

Record details

NPI number1144601451
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedJune 11, 2015
Last updated in NPPESFebruary 10, 2017

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolWESTERN STATES COLLEGE OF CHIROPRACTIC
Graduated 2015 (11 years in practice)
Group practice S2 Collaborations Llc — 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 patients33
Services billed 122 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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 S2 Collaborations LLC

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

Other providers in Tigard