What is Cornelius Mahoney's NPI number?

Cornelius Mahoney's National Provider Identifier (NPI) is 1003895657, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Cornelius Mahoney's specialty?

Cornelius Mahoney is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is Cornelius Mahoney located?

Cornelius Mahoney's practice location on file with NPPES is 900 North Shore Dr, Lake Bluff, IL 60044-2243.

What is Cornelius Mahoney's phone number?

The practice phone number listed in the NPPES registry for Cornelius Mahoney is (847) 295-0340.

Is Cornelius Mahoney's NPI active?

Yes — Cornelius Mahoney's NPI (1003895657) is active in the NPPES registry as of the last update on 2014-12-02.

IndividualActive

Cornelius Mahoney, PHD

NPI 1003895657 · Clinical Psychologist · Lake Bluff, IL

Cornelius Mahoney, PHD is a Clinical Psychologist provider in Lake Bluff, IL (NPI 1003895657).

Provider details

NPI number: 1003895657
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PHD
Sex: Male
Sole proprietor: No
License: 071003138 (IL)

Practice location

900 North Shore Dr

Ste 200

Lake Bluff, IL 60044-2243

Phone: (847) 295-0340

Fax: (847) 295-0351

Street-level locationGet directions

More IL providers

Mailing address

900 North Shore Dr

Lake Bluff, IL 60044-2243

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense 071003138 (IL)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(91/100 index)

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

Registry tenure38% of score
20 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: 2006-01-12
Last updated: 2014-12-02

Frequently asked questions

What is Cornelius Mahoney's NPI number?: Cornelius Mahoney's National Provider Identifier (NPI) is 1003895657, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Cornelius Mahoney's specialty?: Cornelius Mahoney is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
Where is Cornelius Mahoney located?: Cornelius Mahoney's practice location on file with NPPES is 900 North Shore Dr, Lake Bluff, IL 60044-2243.
What is Cornelius Mahoney's phone number?: The practice phone number listed in the NPPES registry for Cornelius Mahoney is (847) 295-0340.
Is Cornelius Mahoney's NPI active?: Yes — Cornelius Mahoney's NPI (1003895657) is active in the NPPES registry as of the last update on 2014-12-02.

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