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

Dr. Greg Walter Messer, DC

Individual provider Chiropractor · NPI 1114006558

Dr. Greg Walter Messer, DC is registered under Chiropractic in Seattle, Washington. Graduated from Western States College of Chiropractic in 2004, 22 years ago. Practices with Gig Harbor Wellness, Ps, a 3-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
22
Trained at
Western States College of Chiropractic
Licensed in
WA
In the registry since
2006
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

3514 Fremont Ave N
Seattle, WA 98103-8814 Not confirmed with CMS for 19 years — call before visiting
Phone: (206) 634-1300
Fax: (206) 547-2525
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence CH34445 (WA)

Record details

NPI number1114006558
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedNovember 5, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolWESTERN STATES COLLEGE OF CHIROPRACTIC
Graduated 2004 (22 years in practice)
Group practice Gig Harbor Wellness, Ps — 3 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 patients62
Services billed 841 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 Gig Harbor Wellness, Ps

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

Other providers in Seattle