Mary Elizabeth Strain, PHD PLLC
NPI 1841795275 · Clinical Psychologist · Barrington, IL
Mary Elizabeth Strain, PHD PLLC is a Clinical Psychologist organization in Barrington, IL (NPI 1841795275).
Provider details
- NPI number
- 1841795275
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Mary Strain, Owner(847) 920-7888
- License
- 071007296 (IL)
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
8 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
- 2018-03-27
- Last updated
- 2026-01-27
- Certified
- 2026-01-27
Frequently asked questions
- What is Mary Elizabeth Strain, PHD PLLC's NPI number?
- Mary Elizabeth Strain, PHD PLLC's National Provider Identifier (NPI) is 1841795275, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mary Elizabeth Strain, PHD PLLC?
- Mary Elizabeth Strain, PHD PLLC is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mary Elizabeth Strain, PHD PLLC located?
- Mary Elizabeth Strain, PHD PLLC's practice location on file with NPPES is 901 Fox Glen, Barrington, IL 60010-1863.
- What is Mary Elizabeth Strain, PHD PLLC's phone number?
- The practice phone number listed in the NPPES registry for Mary Elizabeth Strain, PHD PLLC is (847) 920-7888.
- Who is the authorized official for Mary Elizabeth Strain, PHD PLLC?
- The authorized official listed on Mary Elizabeth Strain, PHD PLLC's NPPES record is Mary Strain, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mary Elizabeth Strain, PHD PLLC's NPI active?
- Yes — Mary Elizabeth Strain, PHD PLLC's NPI (1841795275) is active in the NPPES registry as of the last update on 2026-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.