Syed Ommar Hassan, MD - Medicare Family Practice in Mchenry, IL

Syed Ommar Hassan, MD is a medicare enrolled "Family Medicine" physician in Mchenry, Illinois. He graduated from medical school in 1998 and has 26 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Mercy Health System Corporation and his current practice location is 3922 Mercy Dr, Mchenry, Illinois. You can reach out to his office (for appointments etc.) via phone at (815) 344-4499.

Syed Ommar Hassan is licensed to practice in Illinois (license number 036-133790) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1063637544.

Contact Information

Syed Ommar Hassan, MD
3922 Mercy Dr,
Mchenry, IL 60050-3179
(815) 344-4499
(815) 344-4779

Map and Direction




Physician's Profile

Full NameSyed Ommar Hassan
GenderMale
SpecialityFamily Practice
Experience26 Years
Location3922 Mercy Dr, Mchenry, Illinois
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Syed Ommar Hassan graduated from medical school in 1998
  NPI Data:
  • NPI Number: 1063637544
  • Provider Enumeration Date: 04/17/2007
  • Last Update Date: 08/04/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7517013154
  • Enrollment ID: I20131021001358

Medical Identifiers

Medical identifiers for Syed Ommar Hassan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063637544NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 57012414 (Ohio)Secondary
207Q00000XFamily Medicine 036-133790 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Assure Home Healthcare, IncSkokie, ILHome health agency
Amedisys Home HealthLake zurich, ILHome health agency
Mercy Health System CorpJanesville, WIHospital
Northwestern Medicine Mchenry HospitalMchenry, ILHospital
Mercy Harvard HospitalHarvard, ILHospital
Mercy Walworth Hospital & Medical CenterLake geneva, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Health System Corporation7416860440475

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Syed Ommar Hassan allows following entities to bill medicare on his behalf.
Entity NameMercy Health System Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598718603
PECOS PAC ID: 7416860440
Enrollment ID: O20031111000307

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Syed Ommar Hassan is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Syed Ommar Hassan, MD
3922 Mercy Dr,
Mchenry, IL 60050-3179

Ph: (815) 344-4499
Syed Ommar Hassan, MD
3922 Mercy Dr,
Mchenry, IL 60050-3179

Ph: (815) 344-4499

Reviews and Comments


Family Medicine Doctors in Mchenry, IL

Napoleon S Belo, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 620 South Rt 31, Suite 4, Mchenry, IL 60050
Phone: 815-759-2306    
Mazhar Hussain Zaidi, MD
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Practice Location: 2507 N Richmond Rd, Mchenry, IL 60051
Phone: 815-338-6600    
Oscar Mauricio Sanchez, M.D.
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Practice Location: 5435 Bull Valley Rd, Ste 218, Mchenry, IL 60050
Phone: 815-578-0224    Fax: 815-578-0525
Dr. Manoj Ratilal Patel, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2507 N Richmond Rd, Mchenry, IL 60051
Phone: 847-802-7300    Fax: 815-385-3374
Dr. Maria F Vlahos, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3922 Mercy Dr, Mchenry, IL 60050
Phone: 815-344-4499    
Anthony J Weston, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2507 N Richmond Rd, Mchenry, IL 60051
Phone: 815-344-2300    Fax: 815-344-8957

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.