CONSTANTINE WONAIS MD
NPI 1457340267
Internal Medicine in Naperville, IL

Q: What is Constantine Wonais's NPI number?

The NPI number for Constantine Wonais is 1457340267. It was assigned to this individual provider in the NPPES registry on October 14, 2005.

Q: What is Constantine Wonais's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since October 14, 2005PECOS Enrolled

91.35/100

CMS Quality Rating

2255 MONARCH DR, NAPERVILLE, IL 60563(630) 300-1125(630) 300-1394 Get Directions Write a Review

NPPES record last updated: February 4, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Constantine Wonais Md NPPES

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

CONSTANTINE WONAIS MD (NPI 1457340267) is an individual internal medicine provider in Naperville, Illinois, licensed in Illinois (036062093) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457340267

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameCONSTANTINE WONAISCredential: MD

Location Address2255 MONARCH DRNaperville, IL 60563-4164

Mailing Address2255 Monarch DrNaperville, IL 60563-4164 · (630) 300-1125 · Fax (630) 300-1394

Phone(630) 300-1125

Fax(630) 300-1394

Sole ProprietorNo

Enumeration DateOctober 14, 2005

Last NPPES UpdateFebruary 4, 2021

NPPES CertifiedFebruary 4, 2021

✔ NPI 1457340267 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in IL · 036062093

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

2255 MONARCH DR, Naperville, IL 60563

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Other Identifiers 2

Medicaid036062093 2IL

Other02222543IL · Bcbs

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Constantine Wonais Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Constantine Wonais reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Edward Health Ventures

0.1 mi

Internal Medicine

2255 MONARCH DR
Naperville, IL 60563

Reassigned Medicare billing, Illinois enrollment
561 clinicians in this Medicare group

NPI 1760749535 (630) 300-1125

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60563 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

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.35/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

82.71

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Power wheelchair, group 2 standard, captains chair, patient weight capacity up to and including 300 pounds K0823

DME-Wheelchairs · category DD009N

1 supplier59 claims59 services$124.84 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

WSSH ENCORE PREAKNESS, LLC

Clinic/Center (Rehabilitation)