1. Home
  2. Directory
  3. Illinois
  4. Oak Lawn
  5. Audiologist
  6. NPI Profile

DR. CHRISTINA ASHLEY DREFFEIN AU.D.
NPI 1356010342
Audiologist in Oak Lawn, IL

Active since September 13, 2021Accepts Medicare Assignment
4928 W 95TH ST, OAK LAWN, IL 60453(708) 424-0143 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 29, 2021, Sep 13, 2021 (2 updates tracked since 2021).

About Dr. Christina Ashley Dreffein Au.d. NPPES

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

DR. CHRISTINA ASHLEY DREFFEIN AU.D. (NPI 1356010342) is an individual audiologist in Oak Lawn, Illinois, licensed in Illinois (147.001849) and active in the NPI registry since September 2021. She is a graduate of Other (2021).

NPPES Registry Identity

NPI1356010342
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameDR. CHRISTINA ASHLEY DREFFEINCredential: AU.D.
Location Address4928 W 95TH STOak Lawn, IL 60453-2504
Mailing Address4928 W 95th StOak Lawn, IL 60453-2504 · (708) 424-0143
Phone(708) 424-0143
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateSeptember 13, 2021
Last NPPES UpdateNovember 29, 20212 updates tracked since enumeration
NPPES CertifiedNovember 29, 2021
✔ NPI 1356010342 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
License✔ Licensed in IL · 147.001849
Definition
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.
Also ListedAudiologist-Hearing Aid FitterTaxonomy 237600000X · License 147.001849 (IL)
4928 W 95TH ST, Oak Lawn, IL 60453
Open in Google Maps ↗

Other Names 1

Other Name (5)Ms. Christina Ashley Dreffein

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

Dr. Christina Ashley Dreffein Au.d. 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 ID4284032426
PECOS Enrollment IDI20211001002095

Medicare Billing Reassignments

3

Medicare enrollment records show Christina Dreffein reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Midwest Ent Alliance PLLC
11 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
Hearing Professionals Of Il Ltd
23 mi
Audiologist
2604 DEMPSTER ST STE 501
Park Ridge, IL 60068
  • Reassigned Medicare billing, Illinois enrollment
  • 6 clinicians in this Medicare group
NPI 1003010364 (847) 674-5585
Austin Ent Associates
952 mi
Plastic Surgery within the Head & Neck
7200 WYOMING SPRINGS DR STE 1400
Round Rock, TX 78681
  • Reassigned Medicare billing, Texas enrollment
  • 7 clinicians in this Medicare group
NPI 1891840575 (512) 458-6391

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 4

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.
255 services248 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.
228 services228 patients
Test for hearing various pitches using earphone 92552
This is a hearing test where earphones are worn to detect different pitch levels. Sounds of various frequencies are played, and you indicate when you hear them. This helps evaluate your hearing ability. It's safe, comfortable, and non-invasive.
25 services24 patients
Test for ability to detect and repeat spoken words 92555
This procedure assesses your ability to understand and repeat spoken words. You'll listen to a series of words and then repeat them back. It helps identify any issues related to hearing or speech comprehension, crucial for effective communication.
20 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60453 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 5

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

SONUS-USA, INC.
Audiologist-Hearing Aid Fitter
4928 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 424-0143
DIANA N CHEN
Audiologist-Hearing Aid Fitter
4928 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 424-0143
KALEY BABICH AU.D.
Audiologist
4928 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 424-0143
MR. STEVEN JAMES FORNERO H.I.S.
Hearing Instrument Specialist
4928 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 424-0143
LAURA SHAHTAJI
Audiologist
4928 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 424-0143

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 Christina Dreffein's NPI number?

The NPI number for Christina Dreffein is 1356010342. It was assigned to this individual provider in the NPPES registry on September 13, 2021. The provider is also known as Ms. Christina Ashley Dreffein.

Where is Christina Dreffein located?

Christina Dreffein practices at 4928 W 95th St, Oak Lawn, IL 60453. The listed phone number is (708) 424-0143.

What is Christina Dreffein's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

Is Christina Dreffein enrolled in Medicare?

Yes. Christina Dreffein 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 Christina Dreffein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christina Dreffein reassigns Medicare benefits to 3 organizations: Midwest Ent Alliance PLLC (Orland Park, IL), Hearing Professionals Of Il Ltd (Park Ridge, IL) and Austin Ent Associates (Round Rock, TX). 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 Christina Dreffein'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 Christina Dreffein was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.