Mary Day, MS
NPI 1871676726 · Mental Health Counselor · Ellensburg, WA
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Day, MS is a Mental Health Counselor provider in Ellensburg, WA (NPI 1871676726).
Provider details
- NPI number
- 1871676726
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- MS
- Sex
- Female
- Sole proprietor
- No
- License
- LH00009968 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-10-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Day's NPI number?
- Mary Day's National Provider Identifier (NPI) is 1871676726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Day's specialty?
- Mary Day is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mary Day located?
- Mary Day's practice location on file with NPPES is 220 W 4th Ave, Ellensburg, WA 98926-3060.
- What is Mary Day's phone number?
- The practice phone number listed in the NPPES registry for Mary Day is (509) 925-9861.
- Does Mary Day accept Medicare?
- Mary Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Day's NPI active?
- Yes — Mary Day's NPI (1871676726) 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.