1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Hospitalist
  6. NPI Profile

AHSAN WAHAB MD
NPI 1548644180
Hospitalist in Chicago, IL

Active since July 14, 2015PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
840 S WOOD ST, CHICAGO, IL 60612(312) 996-5680 Get Directions Write a Review

NPPES record last updated: July 30, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 11, 2025, Jul 15, 2024, May 4, 2023 and 6 more (9 updates tracked since 2022).

About Ahsan Wahab Md NPPES

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

AHSAN WAHAB MD (NPI 1548644180) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036164046) and active in the NPI registry since July 2015. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1548644180
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameAHSAN WAHABCredential: MD
Location Address840 S WOOD STChicago, IL 60612-4325
Mailing Address637 E Woodland Park Ave Apt 107Chicago, IL 60616-4160 · (810) 931-9919
Phone(312) 996-5680
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateJuly 14, 2015
Last NPPES UpdateJuly 30, 20259 updates tracked since enumeration
NPPES CertifiedJuly 23, 2025
✔ NPI 1548644180 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in IL · 036164046
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 036164046 (IL)
840 S WOOD ST, Chicago, IL 60612
Open in Google Maps ↗

Secondary Practice Locations 5

Location 12650 Ridge Ave., IM/ICU HospitalistsEvanston, IL 60201-1718 · Phone (847) 570-1010 · Fax (847) 733-5108
Location 25145 N. California Ave., IM/ICU Hospitalists-Suite 331Chicago, IL 60625-3661 · Phone (847) 570-1027 · Fax (773) 989-1734
Location 39600 Gross Point Rd., IM/ICU HospitalistsSkokie, IL 60076-1214 · Phone (847) 933-6410 · Fax (847) 933-6411
Location 42100 Pfingsten Rd., IM/ICU HospitalistsGlenview, IL 60026-1301 · Phone (847) 657-5840 · Fax (847) 657-5732
Location 5777 Park Ave. West, IM HospitalistsHighland Park, IL 60035-2433 · Phone (847) 926-5840 · Fax (847) 926-5835

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

Ahsan Wahab Md 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 ID42512816
PECOS Enrollment IDI20250711003027, I20250808000092
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.

Hospital Affiliations CMS Care Compare 2

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

Osf Sacred Heart Medical Center

Acute Care Hospitals · Danville, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140093
Location812 N Logan AveDanville, IL 61832 · Vermilion County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability99
Improvement Activities40

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%74 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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
2 suppliers86 claims86 services$17.22 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier17 claims17 services$5.68 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 suppliers84 claims84 services$87.46 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 20

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

DR. KYLE CORSO MORK PHARMD, MBA
Pharmacist (Ambulatory Care)
840 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 996-6783
DR. ALEXANDER SALIM GEHA MD
Surgery
840 S WOOD ST, SUITE 417 CSB
CHICAGO, IL 60612
Cook County (312) 996-5402
DR. KAREN STEINMETZ PATER PHARMD, BCPS, CDE
Pharmacist (Pharmacotherapy)
840 S WOOD ST, SUITE 163, CSB
CHICAGO, IL 60612
Cook County (312) 996-0870
MISS SHIYUN KIM PHARMD
Pharmacist (Pharmacotherapy)
840 S WOOD ST, SUITE 163 CLINICAL SCIENCES BUILDING
CHICAGO, IL 60612
Cook County (312) 996-5025
OANA CRISTINA DANCIU M.D.
Internal Medicine (Hematology & Oncology)
840 S WOOD ST, MC-713
CHICAGO, IL 60612
Cook County (312) 996-1581
DR. MARY BIGLIN MD
Internal Medicine (Gastroenterology)
840 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 996-6651
ALICIA CHANG COJULUN MD
Student in an Organized Health Care Education/Training Program
840 S WOOD ST, MC 856
CHICAGO, IL 60612
Cook County (708) 691-0426
ABDUL KHAYYAM MOHAMMED MD
Pathology (Anatomic Pathology)
840 S WOOD ST
CHICAGO, IL 60612
Cook County (331) 300-9864

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 Ahsan Wahab's NPI number?

The NPI number for Ahsan Wahab is 1548644180. It was assigned to this individual provider in the NPPES registry on July 14, 2015.

Where is Ahsan Wahab located?

Ahsan Wahab practices at 840 S Wood St, Chicago, IL 60612. The listed phone number is (312) 996-5680.

What is Ahsan Wahab's specialty?

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

Is Ahsan Wahab enrolled in Medicare?

Yes. Ahsan Wahab 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 Ahsan Wahab affiliated with any hospitals?

According to CMS data, Ahsan Wahab is affiliated with Northshore University Healthsystem - Evanston Hospital and Osf Sacred Heart Medical Center.

When was this NPI record last updated?

The NPPES record for Ahsan Wahab was last updated on July 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.