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HASSAN ABOUMERHI M.D.
NPI 1336528637
Anesthesiology in Chicago, IL

Active since May 20, 2015PECOS EnrolledAccepts Medicare Assignment
97.71/100
CMS Quality Rating
5841 S MARYLAND AVE, CHICAGO, IL 60637(888) 824-0200 Get Directions Write a Review

NPPES record last updated: December 17, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 17, 2025, Dec 19, 2024, Aug 15, 2023 and 2 more (5 updates tracked since 2016).

About Hassan Aboumerhi M.d. NPPES

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

HASSAN ABOUMERHI M.D. (NPI 1336528637) is an individual anesthesiology provider in Chicago, Illinois, licensed in Illinois (036153171) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1336528637
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameHASSAN ABOUMERHICredential: M.D.
Location Address5841 S MARYLAND AVEChicago, IL 60637-1443
Mailing Address251 E Huron St # F5-704Chicago, IL 60611-2908 · (312) 695-0116
Phone(888) 824-0200
Sole ProprietorYes
Medical School CMSNortheastern Ohio University College Of MedicineGraduated 2015
Enumeration DateMay 20, 2015
Last NPPES UpdateDecember 17, 20255 updates tracked since enumeration
NPPES CertifiedDecember 17, 2025
✔ NPI 1336528637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 036153171
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License 35.148781 (OH), 125067937 (IL)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
5841 S MARYLAND AVE, Chicago, IL 60637
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1251 E Huron St # F5-704Chicago, IL 60611-2908 · Phone (312) 695-0116
Location 25105 SOM Center Rd, Suite 202Willoughby, OH 44094 · Phone (440) 953-5780 · Fax (440) 953-5761

Other Identifiers 2

Other35.148781OH · Ohio Medical Licensure
Medicaid0153547OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource 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

Hassan Aboumerhi 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 ID1850696063
PECOS Enrollment IDI20200722003300, I20230828002505
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

6

Medicare enrollment records show Hassan Aboumerhi reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The University Of Chicago Medical Center
Same address
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
University Of Chicago
Same address
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200
North American Partners In Anesthesia (illinois), LLC
12 mi
Anesthesiology
3 ERIE CT
Oak Park, IL 60302
  • Reassigned Medicare billing, Illinois enrollment
  • 826 clinicians in this Medicare group
NPI 1699032524 (315) 413-5229
Pain Therapy Associates Ltd.
34 mi
Specialist
3200 W HIGGINS RD STE 101
Hoffman Estates, IL 60169
  • Reassigned Medicare billing, Illinois enrollment
  • 9 clinicians in this Medicare group
NPI 1053425454 (847) 352-5511
University Primary Care Practices Inc
279 mi
Pediatrics
3600 KOLBE RD STE 120
Lorain, OH 44053
  • Reassigned Medicare billing, Ohio enrollment
  • 1,437 clinicians in this Medicare group
NPI 1851422315 (440) 282-7408
Lake Hospital System, Inc.
315 mi
Vascular Surgery
20050 HARVARD AVE
Warrensville Heights, OH 44122
  • Reassigned Medicare billing, Ohio enrollment
  • 285 clinicians in this Medicare group
NPI 1669609756 (440) 953-1898

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 10

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.

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.
243 services88 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
81 services81 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.
45 services33 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
40 services20 patients
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152
This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.
26 services21 patients
Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 64483
This procedure involves injecting a mix of numbing and anti-inflammatory medication into a specific nerve root in the lower back. It helps manage pain and reduce inflammation. The process is guided by imaging technology for precision.
20 services18 patients

Hospital Affiliations CMS Care Compare 5

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

The University Of Chicago Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140088
Location5841 South MarylandChicago, IL 60637 · Cook County
Emergency services Birthing friendly

Uh Regional Hospitals

Acute Care Hospitals · Chardon, OH
3/5 CMS rating
OwnershipProprietary
CMS Certification Number360075
Location13207 Ravenna RoadChardon, OH 44024 · Geauga County
Emergency services Birthing friendly

Lake Health

Acute Care Hospitals · Concord, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360098
Location7590 Auburn RoadConcord, OH 44077 · Lake County
Emergency services

Uh Cleveland Medical Center

Acute Care Hospitals · Cleveland, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360137
Location11100 Euclid AvenueCleveland, OH 44106 · Cuyahoga County
Emergency services Birthing friendly

Uhhs Memorial Hospital Of Geneva

Critical Access Hospitals · Geneva, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number361307
Location870 West Main StreetGeneva, OH 44041 · Ashtabula County
Emergency services

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.

97.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality75.43
Promoting Interoperability100
Improvement Activities40

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. DON MARTINEZ M.D.
Radiology (Diagnostic Radiology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 926-8318
ALEXANDRA DUMITRESCU
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
PELEG HOROWITZ
Neurological Surgery
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
SANDEEP GURBUXANI
Pathology (Hematology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
DR. NIREN GANDRA M.D.
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-0240
ALLIE DAKROUB MD MS
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-1000
SCOTT VASHER MD
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-1000
DR. NATHAN CHARLES NOWALK M.D.
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200

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 Hassan Aboumerhi's NPI number?

The NPI number for Hassan Aboumerhi is 1336528637. It was assigned to this individual provider in the NPPES registry on May 20, 2015.

Where is Hassan Aboumerhi located?

Hassan Aboumerhi practices at 5841 S Maryland Ave, Chicago, IL 60637. The listed phone number is (888) 824-0200.

What is Hassan Aboumerhi's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Hassan Aboumerhi enrolled in Medicare?

Yes. Hassan Aboumerhi 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 Hassan Aboumerhi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hassan Aboumerhi reassigns Medicare benefits to 6 organizations: The University Of Chicago Medical Center (Chicago, IL), University Of Chicago (Chicago, IL), North American Partners In Anesthesia (illinois), LLC (Oak Park, IL), Pain Therapy Associates Ltd. (Hoffman Estates, IL), University Primary Care Practices Inc (Lorain, OH) and 1 more organization, listed in the Medicare section above. 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 Hassan Aboumerhi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hassan Aboumerhi accept?

Health plans from Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource and MedMutual list Hassan Aboumerhi 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 Hassan Aboumerhi affiliated with any hospitals?

According to CMS data, Hassan Aboumerhi is affiliated with The University Of Chicago Medical Center, Uh Regional Hospitals, Lake Health, Uh Cleveland Medical Center and Uhhs Memorial Hospital Of Geneva.

When was this NPI record last updated?

The NPPES record for Hassan Aboumerhi was last updated on December 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.