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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MUTAZZ HAJ DARWEESH M.D.
NPI 1205934395
Hospitalist in Chicago, IL

Active since September 20, 2006PECOS EnrolledAccepts Medicare Assignment
1801 WEST 47TH STREET, CHILDRENS MEDICAL CENTER, CHICAGO, IL 60609(773) 847-9004(773) 847-9008 Get Directions Write a Review

NPPES record last updated: July 30, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Mutazz Haj Darweesh M.d. NPPES

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

DR. MUTAZZ HAJ DARWEESH M.D. (NPI 1205934395) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036.113595) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Trinity Hospital, and is a graduate of Other (1989).

NPPES Registry Identity

NPI1205934395
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameDR. MUTAZZ HAJ DARWEESHCredential: M.D.
Location Address1801 WEST 47TH STREET, CHILDRENS MEDICAL CENTERChicago, IL 60609-3872
Mailing Address1801 W 47th StChicago, IL 60609-3872 · (773) 847-9004 · Fax (773) 847-9008
Phone(773) 847-9004
Fax(773) 847-9008
Sole ProprietorYes
Medical School CMSOtherGraduated 1989
Enumeration DateSeptember 20, 2006
Last NPPES UpdateJuly 30, 2026
NPPES CertifiedJuly 30, 2026
✔ NPI 1205934395 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in IL · 036.113595
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedEmergency MedicineTaxonomy 207P00000X · License 036-113595 (IL)
Also ListedInternal MedicineTaxonomy 207R00000X · License 036.113595 (IL)
1801 WEST 47TH STREET, Chicago, IL 60609
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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

Dr. Mutazz Haj Darweesh 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 ID6901827716
PECOS Enrollment IDI20051208000295
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 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.

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.
920 services70 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.
900 services73 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.
57 services52 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.
16 services16 patients

Hospital Affiliations CMS Care Compare 4

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

Advocate Trinity Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140048
Location2320 E 93rd StChicago, IL 60617 · Cook County
Emergency services Birthing friendly

Thorek Memorial Hospital

Acute Care Hospitals · Chicago, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number140115
Location850 W Irving Park RdChicago, IL 60613 · Cook County
Emergency services

Fhn Memorial Hospital

Acute Care Hospitals · Freeport, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140160
Location1045 West Stephenson StreetFreeport, IL 61032 · Stephenson County
Emergency services Birthing friendly

Osf Little Company Of Mary Medical Center

Acute Care Hospitals · Evergreen Park, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140179
Location2800 W 95th StEvergreen Park, IL 60805 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60609 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.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
3 suppliers29 claims29 services$22.23 avg. paid by Medicare
Respiratory suction pump, home model, portable or stationary, electric E0600
DME-Other DME · category DE000N
1 supplier11 claims11 services$34.20 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers38 claims38 services$86.54 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Mutazz Darweesh's NPI number?

The NPI number for Mutazz Darweesh is 1205934395. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Mutazz Darweesh located?

Mutazz Darweesh practices at 1801 West 47th Street Childrens Medical Center, Chicago, IL 60609. The listed phone number is (773) 847-9004.

What is Mutazz Darweesh's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Mutazz Darweesh enrolled in Medicare?

Yes. Mutazz Darweesh 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.

Is Mutazz Darweesh affiliated with any hospitals?

According to CMS data, Mutazz Darweesh is affiliated with Advocate Trinity Hospital, Thorek Memorial Hospital, Fhn Memorial Hospital and Osf Little Company Of Mary Medical Center.

When was this NPI record last updated?

The NPPES record for Mutazz Darweesh was last updated on July 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 days 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.