1. Home
  2. Directory
  3. Illinois
  4. Peoria
  5. Internal Medicine
  6. NPI Profile

MUHAMMAD WAQAR KHATTAK M.D.
NPI 1669648309
Internal Medicine - Nephrology in Peoria, IL

Active since May 02, 2008PECOS EnrolledAccepts Medicare Assignment
420 NE GLEN OAK AVE STE 401, PEORIA, IL 61603(309) 676-8123(309) 676-8455 Get Directions Write a Review

NPPES record last updated: June 26, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 15, 2021, Oct 29, 2018, Dec 28, 2017 (3 updates tracked since 2017).

About Muhammad Waqar Khattak M.d. NPPES

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

MUHAMMAD WAQAR KHATTAK M.D. (NPI 1669648309) is an individual nephrology provider in Peoria, Illinois, licensed in Illinois (036-139349) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, is affiliated with Proctor Hospital, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1669648309
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameMUHAMMAD WAQAR KHATTAKCredential: M.D.
Location Address420 NE GLEN OAK AVE STE 401Peoria, IL 61603
Mailing Address420 Ne Glen Oak Ave Ste 401Peoria, IL 61603-3112 · (309) 676-8123 · Fax (309) 676-8455
Phone(309) 676-8123
Fax(309) 676-8455
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateMay 2, 2008
Last NPPES UpdateJune 26, 20263 updates tracked since enumeration
NPPES CertifiedJune 26, 2026
✔ NPI 1669648309 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in IL · 036-139349
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
420 NE GLEN OAK AVE STE 401, Peoria, IL 61603
Open in Google Maps ↗

Secondary Practice Locations 4

Location 11051 W South StKewanee, IL 61443-8354 · Phone (309) 676-8123 · Fax (309) 676-8455
Location 21000 Health Center DrMattoon, IL 61938-4644 · Phone (217) 238-6247 · Fax (217) 258-4175
Location 3834 N Seminary St Ste 501Galesburg, IL 61401 · Phone (309) 676-8123 · Fax (309) 676-8455
Location 4525 Grant St 2nd floorMacomb, IL 61455 · Phone (309) 676-8123 · Fax (309) 676-8455

Other Identifiers 1

Medicaid036139349IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health and more.Insurance ›

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

Muhammad Waqar Khattak 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 ID9739254418
PECOS Enrollment IDI20160115000133
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

4

Medicare enrollment records show Muhammad Khattak reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Renalcare Associates, S.C.
Same address
Nephrology
420 NE GLEN OAK AVE STE 401
Peoria, IL 61603
  • Reassigned Medicare billing, Illinois enrollment
  • 52 clinicians in this Medicare group
NPI 1649300377 (309) 676-8123
Osf Multi-Specialty Group
7.4 mi
Internal Medicine
8600 N STATE ROUTE 91
Peoria, IL 61615
  • Reassigned Medicare billing, Illinois enrollment
  • 2,944 clinicians in this Medicare group
NPI 1922445527 (309) 683-5050
Mendota Community Hospital
64 mi
Family Medicine
1401 EAST 12TH STREET
Mendota, IL 61342
  • Reassigned Medicare billing, Illinois enrollment
  • 95 clinicians in this Medicare group
NPI 1407872997 (815) 539-7461
Sarah Bush Lincoln Health Center
109 mi
Family Medicine
1000 HEALTH CENTER DR
Mattoon, IL 61938
  • Reassigned Medicare billing, Illinois enrollment
  • 652 clinicians in this Medicare group
NPI 1568581379 (217) 258-2525

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 8

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 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.
414 services172 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.
307 services237 patients
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.
161 services77 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
103 services100 patients
Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
99 services22 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
74 services42 patients

Hospital Affiliations CMS Care Compare 5

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

Proctor Hospital

Acute Care Hospitals · Peoria, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140013
Location5409 N Knoxville AvePeoria, IL 61614 · Peoria County
Emergency services

St Mary Medical Center

Acute Care Hospitals · Galesburg, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140064
Location3333 North SeminaryGalesburg, IL 61401 · Knox County
Emergency services Birthing friendly

Saint Francis Medical Center

Acute Care Hospitals · Peoria, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140067
Location530 NE Glen Oak AvePeoria, IL 61637 · Peoria County
Emergency services Birthing friendly

Mc Donough District Hospital

Acute Care Hospitals · Macomb, IL
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number140089
Location525 East Grant StreetMacomb, IL 61455 · Mc Donough County
Emergency services Birthing friendly

Methodist Medical Center Of Illinois

Acute Care Hospitals · Peoria, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140209
Location221 N E Glen Oak AvePeoria, IL 61636 · Peoria County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61603 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
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
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.

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.

COURTNEY HARLEY ANP
Nurse Practitioner
420 NE GLEN OAK AVE STE 401
PEORIA, IL 61603
Peoria County (309) 676-8123
KUMARPAL SHRISHRIMAL MD
Internal Medicine (Nephrology)
420 NE GLEN OAK AVE STE 401
PEORIA, IL 61603
Peoria County (309) 676-8123
DR. IAN ZACHARY LEWIS D.O.
Internal Medicine (Nephrology)
420 NE GLEN OAK AVE STE 401
PEORIA, IL 61603
Peoria County (309) 676-8123
ALEXANDER J. ALONSO M.D.
Internal Medicine (Nephrology)
420 NE GLEN OAK AVE STE 401
PEORIA, IL 61603
Peoria County (309) 676-8123
GORDON W JAMES MD
Internal Medicine (Nephrology)
420 NE GLEN OAK AVE STE 401
PEORIA, IL 61603
Peoria County (309) 676-8123
ROBERT T SPARROW MD
Internal Medicine (Nephrology)
420 NE GLEN OAK AVE STE 401
PEORIA, IL 61603
Peoria County (309) 676-8123
TIMOTHY A PFLEDERER MD
Internal Medicine (Nephrology)
420 NE GLEN OAK AVE STE 401
PEORIA, IL 61603
Peoria County (309) 676-8123
MS. TIARA J MULLEN APRN
Nurse Practitioner (Family)
420 NE GLEN OAK AVE STE 401
PEORIA, IL 61603
Peoria County (309) 676-8123

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 Muhammad Khattak's NPI number?

The NPI number for Muhammad Khattak is 1669648309. It was assigned to this individual provider in the NPPES registry on May 2, 2008.

Where is Muhammad Khattak located?

Muhammad Khattak practices at 420 NE Glen Oak Ave Ste 401, Peoria, IL 61603. The listed phone number is (309) 676-8123.

What is Muhammad Khattak's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Muhammad Khattak enrolled in Medicare?

Yes. Muhammad Khattak 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 Muhammad Khattak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Muhammad Khattak reassigns Medicare benefits to 4 organizations: Renalcare Associates, S.C. (Peoria, IL), Osf Multi-Specialty Group (Peoria, IL), Mendota Community Hospital (Mendota, IL) and Sarah Bush Lincoln Health Center (Mattoon, 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 Muhammad Khattak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Muhammad Khattak accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Oscar Health and Oscar Insurance Company list Muhammad Khattak 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 Muhammad Khattak affiliated with any hospitals?

According to CMS data, Muhammad Khattak is affiliated with Proctor Hospital, St Mary Medical Center, Saint Francis Medical Center, Mc Donough District Hospital and Methodist Medical Center Of Illinois.

When was this NPI record last updated?

The NPPES record for Muhammad Khattak was last updated on June 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.