Tonya Mestemaker, PSY.D.
NPI 1659460715 · Clinical Psychologist · Lake Bluff, IL
Tonya Mestemaker, PSY.D. is a Clinical Psychologist provider in Lake Bluff, IL (NPI 1659460715).
Provider details
- NPI number
- 1659460715
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
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
83% 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
- 2006-10-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Tonya Mestemaker's NPI number?
- Tonya Mestemaker's National Provider Identifier (NPI) is 1659460715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tonya Mestemaker's specialty?
- Tonya Mestemaker is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Tonya Mestemaker located?
- Tonya Mestemaker's practice location on file with NPPES is 900 N Shore Dr, Lake Bluff, IL 60044-2243.
- What is Tonya Mestemaker's phone number?
- The practice phone number listed in the NPPES registry for Tonya Mestemaker is (773) 383-7700.
- Is Tonya Mestemaker's NPI active?
- Yes — Tonya Mestemaker's NPI (1659460715) 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.