NPPES file of Aug 9, 2026

Melissa Mahon, PSY.D.

Clinical Psychologist · Geneva, IL

Melissa Mahon, PSY.D. is a clinical psychologist with a practice address in Geneva, Illinois, and NPI 1932304102, issued on Jun 18, 2007. Check the license (Illinois 071-008253, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1932304102
Name
Melissa Mahon
Credential
PSY.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
071-008253 IL
Self-reported in NPPES; status is on the state search
Practice location
28 S 5TH St, Geneva, IL 60134
Phone
(847) 287-0916
Enumerated
Jun 18, 2007
Record last updated
Nov 10, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest clinical psychologist records → All 3,947 in Illinois → Look up another NPI →

Also registered at 28 S 5TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Bliss, LPCProfessional Counselor1811692924
  2. Patricia Ely, LCSWClinical Social Worker1700417045
  3. Olivia Espinosa, LCSWClinical Social Worker1700550324
  4. Julie Field, L.C.P.C. C.A.D.C.Professional Counselor1013060276
  5. Rose Klein, LPCProfessional Counselor1104553312
  6. Sean Martiny, LCPC, LPHA, NCCMental Health Counselor1770028912

Verify Melissa Mahon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 071-008253    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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Melissa Mahon among 3,947 clinical psychologist records in Illinois

Melissa Mahon, PSY.D. is one of 3,947 clinical psychologist records with a practice address in Illinois. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 24% of them.

  • NPI issued2007 · 24% of these records are older, 57% newer
  • In a Medicare fileNo · 16% of these records are
  • In the CMS Doctors and Clinicians fileNo · 27% of these records are
  • Record last updated2020 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 clinical psychologist records list a practice address in Geneva

They are 18 of the 1,023 NPPES records with a practice address in Geneva, and 3,947 clinical psychologist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3,947 in Illinois → Every provider in Geneva → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Treva Anderson, PH.D.Geneva, IL 601341669674792
  2. Kristin Anderson, PH.D., LCPGeneva, IL 601341245550797
  3. Annmarie Belmonte, PSY.D.Geneva, IL 601341518158948
  4. Chrstine Bruun, PHDGeneva, IL 601341538478326
  5. Denise Dojka, PSY.D.Geneva, IL 601341043367493
  6. Mary Englund, PSY.D.Geneva, IL 601341104047836
  7. Karen Meissler, PSY.D.Geneva, IL 601341063579118
  8. Katherine Miley, PSY.D.Geneva, IL 601341396060745

Common questions

What is Melissa Mahon, PSY.D.'s NPI number?

Melissa Mahon, PSY.D.'s National Provider Identifier (NPI) is 1932304102, issued on Jun 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Mahon, PSY.D. located?

The NPPES record lists a practice address at 28 S 5TH St, Geneva, IL, 60134. Phone: (847) 287-0916. Providers update this record themselves, so call before visiting.

How can I verify Melissa Mahon, PSY.D.'s license?

NPPES lists Illinois license number 071-008253, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.