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WAHID KASSAR M.D.
NPI 1144203647
Internal Medicine - Endocrinology, Diabetes & Metabolism in Chicago, IL

Active since November 29, 2005PECOS EnrolledAccepts Medicare Assignment
15.01/100
CMS Quality Rating
7447 W TALCOTT AVE STE 467, CHICAGO, IL 60631(630) 866-3636(773) 692-2035 Get Directions Write a Review

NPPES record last updated: October 2, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 11, 2023, Sep 17, 2021, Mar 17, 2021 and 1 more (4 updates tracked since 2020).

About Wahid Kassar M.d. NPPES

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

WAHID KASSAR M.D. (NPI 1144203647) is an individual endocrinology, diabetes & metabolism provider in Chicago, Illinois, licensed in Illinois (036107989) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Presence Saint Francis Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1144203647
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameWAHID KASSARCredential: M.D.
Location Address7447 W TALCOTT AVE STE 467Chicago, IL 60631-3715
Mailing Address7447 W Talcott Ave Ste 467Chicago, IL 60631-3715 · (630) 866-3636 · Fax (773) 692-2035
Phone(630) 866-3636
Fax(773) 692-2035
Sole ProprietorNo
Medical School CMSOtherGraduated 1987
Enumeration DateNovember 29, 2005
Last NPPES UpdateOctober 2, 20254 updates tracked since enumeration
NPPES CertifiedOctober 2, 2025
✔ NPI 1144203647 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in IL · 036107989
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
7447 W TALCOTT AVE STE 467, Chicago, IL 60631
Open in Google Maps ↗

Secondary Practice Locations 2

Location 16050 Sterling Creek RdPortage, IN 46368-7752 · Phone (219) 763-8112 ext. 4959
Location 2900 S Frontage Rd Ste 375Woodridge, IL 60517-5144 · Phone (630) 866-3636 · Fax (773) 692-2035

Other Identifiers 4

Medicaid036107989IL
Other206147IL · Medicare Ptan (group)
OtherF400094850IL · Medicare Ptan (individual)
OtherP00078735IL · Rr Medciare Ptan (individual)

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Wahid Kassar M.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 ID4789573692
PECOS Enrollment IDI20040310001340, I20191030003637
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.

Areas of Expertise CMS Part B claims 11

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
784 services274 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
650 services343 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
443 services251 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
409 services168 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
376 services209 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
315 services284 patients

Hospital Affiliations CMS Care Compare 5

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

Presence Saint Francis Hospital

Acute Care Hospitals · Evanston, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140080
Location355 Ridge AveEvanston, IL 60202 · Cook County
Emergency services

Amita Health Resurrection Medical Center

Acute Care Hospitals · Chicago, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140117
Location7435 W Talcott AvenueChicago, IL 60631 · Cook County
Emergency services Birthing friendly

Silver Cross Hospital And Medical Centers

Acute Care Hospitals · New Lenox, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140213
Location1900 Silver Cross BlvdNew Lenox, IL 60451 · Will County
Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Community Hospital

Acute Care Hospitals · Munster, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150125
Location901 Macarthur BlvdMunster, IN 46321 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60631 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
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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.

15.01/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0
Cost50.03

Referred Medical Equipment & Supplies CMS DME claims 5

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

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
4 suppliers14 claims177 services$17.76 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
4 suppliers14 claims420 services$2.35 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
54 suppliers154 claims674 services$5.78 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
27 suppliers60 claims98 services$1.07 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
24 suppliers419 claims420 services$185.57 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 2

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

WAHID KASSAR MD LTD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
7447 W TALCOTT AVE STE 467
CHICAGO, IL 60631
Cook County (630) 866-3636
MS. TONYA LYNETTE GOLLAHALLI PA-C
Physician Assistant
7447 W TALCOTT AVE STE 467
CHICAGO, IL 60631
Cook County (630) 866-3636

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 Wahid Kassar's NPI number?

The NPI number for Wahid Kassar is 1144203647. It was assigned to this individual provider in the NPPES registry on November 29, 2005.

Where is Wahid Kassar located?

Wahid Kassar practices at 7447 W Talcott Ave Ste 467, Chicago, IL 60631. The listed phone number is (630) 866-3636.

What is Wahid Kassar's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Wahid Kassar enrolled in Medicare?

Yes. Wahid Kassar 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.

What insurance does Wahid Kassar accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource list Wahid Kassar 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.

Is Wahid Kassar affiliated with any hospitals?

According to CMS data, Wahid Kassar is affiliated with Presence Saint Francis Hospital, Amita Health Resurrection Medical Center, Silver Cross Hospital And Medical Centers, Northwestern Medicine Central Dupage Hospital and Community Hospital.

When was this NPI record last updated?

The NPPES record for Wahid Kassar was last updated on October 2, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.