Dr. Mason M. Greenslade , DC
Chiropractor β’ Seattle, WA
928 Nw Leary Way, Suite 203
Seattle, WA 98107
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
928 Nw Leary Way
Suite 203
Seattle, WA 98107
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Stanwood, WA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Chiropractor: NPPES taxonomy is a reported classification, not proof of board certification.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
NPI first issued
2014
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Greenslade has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Seattle and Washington
350 active clinicians are listed under Chiropractor with a practice address in Seattle, WA (3,009 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Seattle
0% of these 350 clinicians have the CMS telehealth indicator.
23.7% of these 350 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-01-15NUCC Taxonomy Code: 111N00000X
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CHIROPRACTIC
I20150107000394
WA
9739402306
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
27514 82nd Dr Nw
Stanwood, WA 982929564
Phone: 4253877215
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 928 NW LEARY WAY, SUITE 203, SEATTLE, WA 98107 (Tel: 4253877215)
Registered at 928 NW LEARY WAY, SUITE 203, SEATTLE, WA 98107 (Tel: 4253877215)
NPI status registered as active in NPPES database
Registered at 27514 82ND DR NW, STANWOOD, STANWOOD, WA 982929564 (Tel: 4253877215)
Registered at 101 TAYLOR AVE N, SEATTLE, SEATTLE, WA 981095146
Recorded as MASON GREENSLADE, D.C.
Chiropractor (license number reported to NPPES: WA 60431420)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Chiropractors in Seattle
- Dr. Alyssa Quintos, DC
- Dr. David Ramaley, DC, ND
- Dr. David Kirdahy, DC
- Dr. Seann Hunter, DC
- Eugene Kearney
- Dr. Ian Davis, DC
Mailing Address
928 Nw Leary Way, Suite 203
Seattle, WA 98107
Phone: 4253877215