What is Sistere Inc.'s NPI number?

Sistere Inc.'s National Provider Identifier (NPI) is 1023243508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

Where is Sistere Inc. located?

Sistere Inc.'s practice location on file with NPPES is 1610 W Powell Blvd, Gresham, OR 97030-6843.

What is Sistere Inc.'s phone number?

The practice phone number listed in the NPPES registry for Sistere Inc. is (503) 665-5193.

Who is the authorized official for Sistere Inc.?

The authorized official listed on Sistere Inc.'s NPPES record is Shannan Mays, Administrater. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is Sistere Inc.'s NPI active?

Yes — Sistere Inc.'s NPI (1023243508) is active in the NPPES registry as of the last update on 2010-02-18.

OrganizationActive

Sistere Inc.

NPI 1023243508 · Mental Illness Community Based Residential Treatment Facility · Gresham, OR

Sistere Inc. is a Mental Illness Community Based Residential Treatment Facility organization in Gresham, OR (NPI 1023243508).

Provider details

NPI number: 1023243508
Entity type: Organization
Primary specialty: Mental Illness Community Based Residential Treatment FacilityResidential Treatment Facilities
Organization subpart: No
Authorized official: Shannan Mays, Administrater(503) 665-5193
License: 320800000X (OR)

Practice location

1610 W Powell Blvd

Gresham, OR 97030-6843

Phone: (503) 665-5193

Fax: (503) 665-8454

Street-level locationGet directions

More OR providers

Mailing address

Po Box 582

Gresham, OR 97030-0137

Specialties & taxonomies

Mental Illness Community Based Residential Treatment FacilityPrimary320800000XLicense 320800000X (OR)
Residential Treatment Facilities

Profile Score

Detailed profile(86/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
17 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.

Enumerated: 2009-05-27
Last updated: 2010-02-18

Frequently asked questions

What is Sistere Inc.'s NPI number?: Sistere Inc.'s National Provider Identifier (NPI) is 1023243508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What type of organization is Sistere Inc.?: Sistere Inc. is classified in the NPPES registry as Mental Illness Community Based Residential Treatment Facility (Residential Treatment Facilities).
Where is Sistere Inc. located?: Sistere Inc.'s practice location on file with NPPES is 1610 W Powell Blvd, Gresham, OR 97030-6843.
What is Sistere Inc.'s phone number?: The practice phone number listed in the NPPES registry for Sistere Inc. is (503) 665-5193.
Who is the authorized official for Sistere Inc.?: The authorized official listed on Sistere Inc.'s NPPES record is Shannan Mays, Administrater. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
Is Sistere Inc.'s NPI active?: Yes — Sistere Inc.'s NPI (1023243508) is active in the NPPES registry as of the last update on 2010-02-18.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions