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DR. YOUSHAY HUMAYUN M.D.
NPI 1093010423
Hospitalist in Chicago, IL

Active since January 15, 2011PECOS EnrolledAccepts Medicare Assignment
5140 N CALIFORNIA AVE, SUITE 700, CHICAGO, IL 60625(773) 784-2101 Get Directions Write a Review

NPPES record last updated: June 5, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 5, 2025, Jun 28, 2018 (2 updates tracked since 2018).

About Dr. Youshay Humayun M.d. NPPES

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

DR. YOUSHAY HUMAYUN M.D. (NPI 1093010423) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036128668) and active in the NPI registry since January 2011. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1093010423
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameDR. YOUSHAY HUMAYUNCredential: M.D.
Location Address5140 N CALIFORNIA AVE, SUITE 700Chicago, IL 60625
Mailing Address5140 N California Ave, Suite 700Chicago, IL 60625-3645 · (773) 784-2101
Phone(773) 784-2101
Sole ProprietorYes
Medical School CMSOtherGraduated 2007
Enumeration DateJanuary 15, 2011
Last NPPES UpdateJune 5, 20252 updates tracked since enumeration
NPPES CertifiedJune 5, 2025
✔ NPI 1093010423 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in IL · 036128668
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 ListedInternal MedicineTaxonomy 207R00000X · License 125054777 (IL)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 036128668 (IL)
Also ListedInternal Medicine · NephrologyTaxonomy 207RN0300X · License 036128668 (IL)
5140 N CALIFORNIA AVE, Chicago, IL 60625
Open in Google Maps ↗

Secondary Practice Location 1

Location 15145 N California AveChicago, IL 60625-3687 · Phone (177) 387-8820

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. Youshay Humayun 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 ID6709015621
PECOS Enrollment IDI20140218001193
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 9

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.
1,949 services197 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.
302 services61 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.
271 services123 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.
192 services145 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
68 services58 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.
50 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140010
Location2650 Ridge AveEvanston, IL 60201 · Cook County
Emergency services Birthing friendly

Swedish Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140114
Location5145 N California AveChicago, IL 60625 · 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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60625 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.

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.

DR. CHATHUSHKI BANDARA DO
Emergency Medicine
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
PIERCE MICHAEL PATERAKOS
Internal Medicine
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
DR. VASEEM QURESHI M.D.
Internal Medicine (Nephrology)
5140 N CALIFORNIA AVE, SUITE 700
CHICAGO, IL 60625
Cook County (773) 784-2101
DR. WASAY HUMAYUN M.D.
Family Medicine
5140 N CALIFORNIA AVE, STE 700
CHICAGO, IL 60625
Cook County (773) 784-2101
DR JOSEPH S KIM DPM
Podiatrist (Foot & Ankle Surgery)
5140 N CALIFORNIA AVE, STE 515
CHICAGO, IL 60625
Cook County (773) 989-1699
DR. MORGAN CLEM DO
Hospitalist
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (217) 836-1376
LLOYD QUINN YOUNG
Podiatrist (Foot & Ankle Surgery)
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
SHANNON SIKKILA N.P.
Nurse Practitioner (Adult Health)
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 293-4178

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 Youshay Humayun's NPI number?

The NPI number for Youshay Humayun is 1093010423. It was assigned to this individual provider in the NPPES registry on January 15, 2011.

Where is Youshay Humayun located?

Youshay Humayun practices at 5140 N California Ave Suite 700, Chicago, IL 60625. The listed phone number is (773) 784-2101.

What is Youshay Humayun's specialty?

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

Is Youshay Humayun enrolled in Medicare?

Yes. Youshay Humayun 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 Youshay Humayun affiliated with any hospitals?

According to CMS data, Youshay Humayun is affiliated with Northshore University Healthsystem - Evanston Hospital, Swedish Hospital and Thorek Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Youshay Humayun was last updated on June 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.