Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Martin Leichtman, PH. D.

Clinical Psychologist in Naperville, IL · enumerated 2006 · practices at Sk Primary Care and Wellness Center, S.C..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1700823390

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Registry record

Entity type Individual (Type 1)

Name Martin Leichtman

Credential PH. D.

Sex Male

Practice address Naperville, IL, 60564

Phone (630) 753-9800

Fax (913) 345-1464

Enumeration date Jun 1, 2006

Last updated in NPPES Dec 10, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 296 (KS) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 071.011161 (IL) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Martin Leichtman?

The National Provider Identifier (NPI) for Martin Leichtman is 1700823390, a Type 1 (individual) record in the CMS NPPES registry.

Where does Martin Leichtman practice?

The practice location on file with NPPES is in Naperville, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Brian Page Prescribing (Medical) Psychologist · Naperville, IL NPI 1073971396 Stephanie Wollert Professional Counselor · Naperville, IL NPI 1679137582 Melissa Pacione Professional Counselor · Naperville, IL NPI 1396377479 Abby Lauer Professional Counselor · Naperville, IL NPI 1386270486 Adriana Del Olmo Mental Health Counselor · Naperville, IL NPI 1184397028 Rebecca Bullock Professional Counselor · Naperville, IL NPI 1184388845 Julie Mostyn Professional Counselor · Naperville, IL NPI 1285388835 Sotiria Kapsis Professional Counselor · Naperville, IL NPI 1609503671

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-10.