Dagan Hammar, MD - Medicare Hospitalist in Winfield, IL

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Dagan Hammar, MD is a medicare enrolled "Hospitalist" physician in Winfield, Illinois. He went to Western Michigan Un Homer Stryker School Of Med and graduated in 2019 and has 7 years of diverse experience with area of expertise as Hospitalist. He is a member of the group practice Central Dupage Physician Group and his current practice location is 25 N Winfield Rd, Winfield, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 933-4700.

Dagan Hammar is licensed to practice in Illinois (license number 036174384) 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 1194287151.

Contact Information

Dagan Hammar, MD
25 N Winfield Rd,
Winfield, IL 60190-1379
(630) 933-4700
(630) 933-4427

Map and Direction




Physician's Profile

Full NameDagan Hammar
GenderMale
SpecialityHospitalist
Experience7 Years
Location25 N Winfield Rd, Winfield, 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:
  • Dagan Hammar attended and graduated from Western Michigan Un Homer Stryker School Of Med in 2019
  NPI Data:
  • NPI Number: 1194287151
  • Provider Enumeration Date: 04/01/2019
  • Last Update Date: 09/24/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3577806801
  • Enrollment ID: I20250617001571

Medical Identifiers

Medical identifiers for Dagan Hammar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194287151NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 036174384 (Illinois)Primary
208M00000XHospitalist 068209 (Colorado)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northwestern Medicine Central Dupage HospitalWinfield, ILHospital
Northwestern Memorial HospitalChicago, ILHospital
Northwestern Medicine Delnor Community HospitalGeneva, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Central Dupage Physician Group58906962311087

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. Dagan Hammar allows following entities to bill medicare on his behalf.
Entity NameCentral Dupage Physician Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033149844
PECOS PAC ID: 5890696231
Enrollment ID: O20040303000601

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. Dagan Hammar 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
Dagan Hammar, MD
25 N Winfield Rd,
Winfield, IL 60190-1379

Ph: (630) 933-4700		Dagan Hammar, MD
25 N Winfield Rd,
Winfield, IL 60190-1379

Ph: (630) 933-4700

Reviews and Comments


Hospitalist Doctors in Winfield, IL

Timothy R Long, D.O.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 400, Winfield, IL 60190
Phone: 630-456-7178    Fax: 630-456-7486
Sarah Jaber, DO
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 400, Winfield, IL 60190
Phone: 630-456-7178    Fax: 630-456-7486
Lipi Mehul Sekhadia, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 400, Winfield, IL 60190
Phone: 630-456-7178    
Dr. Hossam Nader Abdel Aziz, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd, Winfield, IL 60190
Phone: 630-933-4700    Fax: 630-933-4427
Mohammad Alghalith, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 400, Winfield, IL 60190
Phone: 630-456-7178    Fax: 630-456-7486
Priya Venkataraman, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 400, Winfield, IL 60190
Phone: 630-456-7178    Fax: 630-456-7486
Nikolay Zlatarov, DO
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 400, Winfield, IL 60190
Phone: 630-456-7178    Fax: 773-989-1648

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.