Elroi Mental Health Services PLLC
NPI 1821702481 · Psychiatric/Mental Health Nurse Practitioner · Lacey, WA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elroi Mental Health Services PLLC is a Psychiatric/Mental Health Nurse Practitioner organization in Lacey, WA (NPI 1821702481).
Provider details
- NPI number
- 1821702481
- Entity type
- Organization
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Organization subpart
- No
- Authorized official
- Margie Williams, Owner/Provider(253) 300-3303
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2023-01-09
- Last updated
- 2023-05-15
- Certified
- 2023-05-15
Frequently asked questions
- What is Elroi Mental Health Services PLLC's NPI number?
- Elroi Mental Health Services PLLC's National Provider Identifier (NPI) is 1821702481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Elroi Mental Health Services PLLC?
- Elroi Mental Health Services PLLC is classified in the NPPES registry as Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Elroi Mental Health Services PLLC located?
- Elroi Mental Health Services PLLC's practice location on file with NPPES is 4405 7th Ave Se Ste 200-0501, Lacey, WA 98503-1062.
- What is Elroi Mental Health Services PLLC's phone number?
- The practice phone number listed in the NPPES registry for Elroi Mental Health Services PLLC is (253) 300-3303.
- Does Elroi Mental Health Services PLLC accept Medicare?
- Elroi Mental Health Services PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Elroi Mental Health Services PLLC?
- The authorized official listed on Elroi Mental Health Services PLLC's NPPES record is Margie Williams, Owner/Provider. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Elroi Mental Health Services PLLC's NPI active?
- Yes — Elroi Mental Health Services PLLC's NPI (1821702481) is active in the NPPES registry as of the last update on 2023-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.