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SIVAN BLONZ MS
NPI 1558550475
Audiologist-Hearing Aid Fitter in Park Ridge, IL

Active since October 16, 2007Accepts Medicare Assignment
2604 DEMPSTER ST STE 501, PARK RIDGE, IL 60068(847) 674-5585 Get Directions Write a Review

NPPES record last updated: May 13, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Sivan Blonz Ms NPPES

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

SIVAN BLONZ MS (NPI 1558550475) is an individual audiologist-hearing aid fitter provider in Park Ridge, Illinois, licensed in Illinois (147000868) and active in the NPI registry since October 2007. She maintains a secondary practice location in Niles and is a graduate of Other (1997).

NPPES Registry Identity

NPI1558550475
Entity TypeIndividualFemale
Primary Taxonomy237600000X
Provider Legal NameSIVAN BLONZCredential: MS
Location Address2604 DEMPSTER ST STE 501Park Ridge, IL 60068-8429
Mailing Address8780 W Golf Rd Ste 200Niles, IL 60714-5611 · (847) 824-4390 · Fax (847) 824-1712
Phone(847) 674-5585
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateOctober 16, 2007
Last NPPES UpdateMay 13, 2024
NPPES CertifiedMay 13, 2024
✔ NPI 1558550475 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
Taxonomy Code237600000X
License✔ Licensed in IL · 147000868
Definition
An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as audiologist-hearing aid fitters as opposed to states that license individuals as audiologists.
2604 DEMPSTER ST STE 501, Park Ridge, IL 60068
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Secondary Practice Location 1

Location 18780 W Golf Rd Ste 200Niles, IL 60714-5611 · Phone (847) 824-4390 · Fax (847) 824-1712

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

Sivan Blonz Ms 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 ID2062574486
PECOS Enrollment IDI20081218000759

Medicare Billing Reassignments

2

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

Ear, Nose & Throat Specialists Of Illinois Ltd
Same address
Specialist
2604 DEMPSTER ST STE 501
Park Ridge, IL 60068
  • Reassigned Medicare billing, Illinois enrollment
  • 27 clinicians in this Medicare group
NPI 1750340949 (847) 674-5585
Midwest Ent Alliance PLLC
30 mi
Otolaryngology
16001 108TH AVE
Orland Park, IL 60467
  • Reassigned Medicare billing, Illinois enrollment
  • 98 clinicians in this Medicare group
NPI 1588449458 (708) 460-0007

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Test to assess middle ear function 92567
A test to assess middle ear function, also known as an impedance audiometry, helps evaluate how well your middle ear works. It measures the movement of your eardrum in response to changes in air pressure. This can help identify issues like fluid build-up, ear infections, or eardrum perforations.
61 services60 patients
Comprehensive hearing and speech recognition test 92557
A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.
59 services58 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60068 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$60.08 typical visit price
range $60.08 – $183.39
Typical copayment $15.02 (range $15.02 – $45.84)
Most-billed visit code 99202
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 19

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

HEARING PROFESSIONALS OF IL LTD
Audiologist
2604 DEMPSTER ST STE 501
PARK RIDGE, IL 60068
Cook County (847) 674-5585
DR. GREGORY S. BUSSELL M.D.
Otolaryngology
2604 DEMPSTER ST STE 501
PARK RIDGE, IL 60068
Cook County (847) 674-5585
SAMANTHA BLOODGOOD AU.D.
Audiologist
2604 DEMPSTER ST STE 501
PARK RIDGE, IL 60068
Cook County (847) 674-5585
DR. LAUREN E MOSS AUD
Audiologist
2604 DEMPSTER ST STE 501
PARK RIDGE, IL 60068
Cook County (847) 674-5585
DR. FRANCIS A. CASPER M.D.
Otolaryngology
2604 DEMPSTER ST STE 501
PARK RIDGE, IL 60068
Cook County (847) 674-5585
DR. BRITTANY NGUYEN AU.D.
Audiologist
2604 DEMPSTER ST STE 501
PARK RIDGE, IL 60068
Cook County (847) 674-5585
DR. SUSAN RICKELS HARRIS AU.D., CCC-A
Audiologist
2604 DEMPSTER ST STE 501
PARK RIDGE, IL 60068
Cook County (847) 674-5585
MERLE ANN NATHAN M.A.
Audiologist-Hearing Aid Fitter
2604 DEMPSTER ST STE 501
PARK RIDGE, IL 60068
Cook County (847) 592-7725

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 Sivan Blonz's NPI number?

The NPI number for Sivan Blonz is 1558550475. It was assigned to this individual provider in the NPPES registry on October 16, 2007.

Where is Sivan Blonz located?

Sivan Blonz practices at 2604 Dempster St Ste 501, Park Ridge, IL 60068. The listed phone number is (847) 674-5585.

What is Sivan Blonz's specialty?

The primary specialty registered for this NPI is Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.

Is Sivan Blonz enrolled in Medicare?

Yes. Sivan Blonz 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 Sivan Blonz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sivan Blonz reassigns Medicare benefits to 2 organizations: Ear, Nose & Throat Specialists Of Illinois Ltd (Park Ridge, IL) and Midwest Ent Alliance PLLC (Orland Park, IL). 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 Sivan Blonz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sivan Blonz was last updated on May 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.