IndividualActive
Roy Mass, D.C.
NPI 1295812253 · Chiropractor · Ontario, OR
Roy Mass, D.C. is a Chiropractor provider in Ontario, OR (NPI 1295812253).
Provider details
- NPI number
- 1295812253
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 11336 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
2075 Sunset Dr
Ontario, OR 97914-4148
Phone: (541) 889-4197
Fax: (541) 889-4197
Street-level locationGet directions
Mailing address
2075 Sunset Dr
Ontario, OR 97914-4148
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Roy Mass's NPI number?
- Roy Mass's National Provider Identifier (NPI) is 1295812253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roy Mass's specialty?
- Roy Mass is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Roy Mass located?
- Roy Mass's practice location on file with NPPES is 2075 Sunset Dr, Ontario, OR 97914-4148.
- What is Roy Mass's phone number?
- The practice phone number listed in the NPPES registry for Roy Mass is (541) 889-4197.
- Is Roy Mass's NPI active?
- Yes — Roy Mass's NPI (1295812253) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.