Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. MARC GENSON LCPC
NPI 1437547858
Counselor - Professional in Westmont, IL

Active since January 07, 2015PECOS EnrolledAccepts Medicare Assignment
700 E OGDEN AVE STE 304, WESTMONT, IL 60559(847) 232-4535 Get Directions Write a Review

NPPES record last updated: September 18, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 18, 2026, Jul 10, 2026 (2 updates tracked since 2026).

About Mr. Marc Genson Lcpc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. MARC GENSON LCPC (NPI 1437547858) is an individual professional provider in Westmont, Illinois, licensed in Illinois (180009487) and active in the NPI registry since January 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1437547858
Entity TypeIndividualMale
Primary Taxonomy101YP2500X
Provider Legal NameMR. MARC GENSONCredential: LCPC
Location Address700 E OGDEN AVE STE 304Westmont, IL 60559-5554
Mailing Address700 E Ogden Ave Ste 304Westmont, IL 60559-5554 · (847) 232-4616 · Fax (847) 230-7626
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateJanuary 7, 2015
Last NPPES UpdateSeptember 18, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 18, 2026
✔ NPI 1437547858 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in IL · 180009487
700 E OGDEN AVE STE 304, Westmont, IL 60559

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Marc Genson Lcpc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8628443660
PECOS Enrollment IDI20240227000443
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Marc Genson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mental Health (Including Community Mental Health Center)
16335 HARLEM AVE STE 300
Tinley Park, IL 60477
  • Reassigned Medicare billing, Illinois enrollment
  • 14 clinicians in this Medicare group
Mental Health
66 W FLAGLER ST STE 900
Miami, FL 33130
  • Reassigned Medicare billing, Illinois enrollment
  • 581 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
700 E OGDEN AVE STE 304
WESTMONT, IL 60559
Counselor (Mental Health)
700 E OGDEN AVE STE 304
WESTMONT, IL 60559
Counselor (Professional)
700 E OGDEN AVE STE 304
WESTMONT, IL 60559
Acupuncturist
700 E OGDEN AVE STE 304
WESTMONT, IL 60559
Counselor (Mental Health)
700 E OGDEN AVE STE 304
WESTMONT, IL 60559
Counselor (Mental Health)
700 E OGDEN AVE STE 304
WESTMONT, IL 60559
Counselor (Mental Health)
700 E OGDEN AVE STE 304
WESTMONT, IL 60559
Social Worker (Clinical)
700 E OGDEN AVE STE 304
WESTMONT, IL 60559

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marc Genson's NPI number?

The NPI number for Marc Genson is 1437547858. It was assigned to this individual provider in the NPPES registry on January 7, 2015.

Where is Marc Genson located?

Marc Genson practices at 700 E Ogden Ave Ste 304, Westmont, IL 60559. The listed phone number is (847) 232-4535.

What is Marc Genson's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Marc Genson enrolled in Medicare?

Yes. Marc Genson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Marc Genson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marc Genson reassigns Medicare benefits to 2 organizations: Serene Health (Tinley Park, IL) and Grow Healthcare Group PA (Miami, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marc Genson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marc Genson accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Marc Genson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marc Genson was last updated on September 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 51 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.