STEPHANIE KARAPAS
NPI 1053074021
Nurse Anesthetist, Certified Registered in Arlington Heights, IL

Active since October 18, 2021PECOS EnrolledAccepts Medicare Assignment
800 W CENTRAL RD, ARLINGTON HEIGHTS, IL 60005(847) 618-7140(847) 618-0228 Get Directions Write a Review

NPPES record last updated: April 30, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 30, 2026, Feb 17, 2025, Oct 21, 2021 (3 updates tracked since 2021).

About Stephanie Karapas NPPES

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

STEPHANIE KARAPAS (NPI 1053074021) is an individual nurse anesthetist, certified registered in Arlington Heights, Illinois, licensed in Illinois (209034803) and active in the NPI registry since October 2021. She is enrolled in Medicare PECOS, is affiliated with Northwest Community Hospital 1, and maintains a secondary practice location in Seattle.

NPPES Registry Identity

NPI1053074021
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameSTEPHANIE KARAPAS
Location Address800 W CENTRAL RDArlington Heights, IL 60005-2349
Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 570-2040
Fax(847) 618-0228
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateOctober 18, 2021
Last NPPES UpdateApril 30, 20263 updates tracked since enumeration
NPPES CertifiedApril 30, 2026
✔ NPI 1053074021 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
Licenses✔ Licensed in IL · 209034803✔ Licensed in WA · AP61214945
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
800 W CENTRAL RD, Arlington Heights, IL 60005

Other Names 1

Former Name (1)Stephanie Mazanek

Secondary Practice Location 1

Location 11100 9th AveSeattle, WA 98101-2756 · Phone (206) 223-6600

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

Stephanie Karapas 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 ID3375932767
PECOS Enrollment IDI20211104002338, I20260506001862
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 Stephanie Karapas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Allergy & Immunology
1000 CENTRAL ST
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
Internal Medicine
19116 33RD AVE W
Lynnwood, WA 98036
  • Reassigned Medicare billing, Washington enrollment
  • 1,021 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.

Areas of Expertise CMS Part B claims 3

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.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
33 services26 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
20 services20 patients
Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810
Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.
18 services18 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwest Community Hospital 1

Acute Care Hospitals · Arlington Heights, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140252
Location800 W Central RoadArlington Heights, IL 60005 · Cook County
Emergency services Birthing friendly

Virginia Mason Medical Center

Acute Care Hospitals · Seattle, WA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500005
Location925 Seneca StSeattle, WA 98101 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60005 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
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 20

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

Hospitalist
800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005
Hospitalist
800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005
Internal Medicine (Critical Care Medicine)
800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005
Pathology (Anatomic Pathology & Clinical Pathology)
800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005
Anesthesiology
800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005
Physical Therapist
800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005
Radiology (Radiation Oncology)
800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005
Emergency Medicine
800 W CENTRAL RD, NORTHWEST COMMUNITY HOSPITAL
ARLINGTON HEIGHTS, IL 60005

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 Stephanie Karapas's NPI number?

The NPI number for Stephanie Karapas is 1053074021. It was assigned to this individual provider in the NPPES registry on October 18, 2021. The provider is also known as Stephanie Mazanek.

Where is Stephanie Karapas located?

Stephanie Karapas practices at 800 W Central Rd, Arlington Heights, IL 60005. The listed phone number is (847) 618-7140.

What is Stephanie Karapas's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Stephanie Karapas enrolled in Medicare?

Yes. Stephanie Karapas 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 Stephanie Karapas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Karapas reassigns Medicare benefits to 2 organizations: Endeavor Health Medical Group (Evanston, IL) and Virginia Mason Medical Center (Lynnwood, WA). 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 Stephanie Karapas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Stephanie Karapas affiliated with any hospitals?

According to CMS data, Stephanie Karapas is affiliated with Northwest Community Hospital 1 and Virginia Mason Medical Center.

When was this NPI record last updated?

The NPPES record for Stephanie Karapas was last updated on April 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.