Hoyee Chan, MD - Medicare Internal Medicine in Buffalo Grove, IL

Hoyee Chan, MD is a medicare enrolled "Internal Medicine" physician in Buffalo Grove, Illinois. She went to University Of Illinois College Of Med (chi/peor/rock/chm-urb) and graduated in 1983 and has 41 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Endeavor Health Medical Group and her current practice location is 400 Mchenry Rd, Town Center Shopping Center, Buffalo Grove, Illinois. You can reach out to her office (for appointments etc.) via phone at (847) 520-9424.

Hoyee Chan is licensed to practice in Illinois (license number 036-070726) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1336208297.

Contact Information

Hoyee Chan, MD
400 Mchenry Rd, Town Center Shopping Center,
Buffalo Grove, IL 60089-6740
(847) 520-9424
(847) 998-9918

Map and Direction




Physician's Profile

Full NameHoyee Chan
GenderFemale
SpecialityInternal Medicine
Experience41 Years
Location400 Mchenry Rd, Buffalo Grove, Illinois
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Hoyee Chan attended and graduated from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 1983
  NPI Data:
  • NPI Number: 1336208297
  • Provider Enumeration Date: 12/07/2006
  • Last Update Date: 10/13/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 3678509874
  • Enrollment ID: I20050711000347

Medical Identifiers

Medical identifiers for Hoyee Chan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336208297NPI-NPPES
110206890OtherILRAILROAD MEDICARE PIN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 036-070726 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northshore University Healthsystem Home & HospiceSkokie, ILHome health agency
Northshore University Healthsystem - Evanston HospitalEvanston, ILHospital
Northwest Community Hospital 1Arlington heights, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Endeavor Health Medical Group21633346992710

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. Hoyee Chan allows following entities to bill medicare on her behalf.
Entity NameNorthshore University Healthsystem Faculty Practice Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497701882
PECOS PAC ID: 2163334699
Enrollment ID: O20040524000118

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. Hoyee Chan 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
Hoyee Chan, MD
2650 Ridge Ave, Evanston Hospital,
Evanston, IL 60201-1718

Ph: (847) 570-1206
Hoyee Chan, MD
400 Mchenry Rd, Town Center Shopping Center,
Buffalo Grove, IL 60089-6740

Ph: (847) 520-9424

Reviews and Comments


Internal Medicine Doctors in Buffalo Grove, IL

Mr. Mark J Charman, M.D.
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Practice Location: 600 W Lake Cook Rd, Buffalo Grove, IL 60089
Phone: 847-632-1880    Fax: 847-520-6095
Olga Zarkh, MD
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Practice Location: 135 N Arlington Heights Rd Ste 160, Buffalo Grove, IL 60089
Phone: 847-818-7700    Fax: 847-818-1718
Dr. Gregory O'neal Clark, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 355 W Dundee Rd Ste 110, Buffalo Grove, IL 60089
Phone: 847-541-4878    Fax: 847-520-0500
Dr. Sarah Cathleen Peterson, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 S Mchenry Rd, Buffalo Grove, IL 60089
Phone: 847-618-0326    Fax: 847-618-0762
Dr. Chuck Richard Vrasich, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 S Mchenry Rd, Buffalo Grove, IL 60089
Phone: 847-618-0351    Fax: 847-618-0766
Dr. Susan E Nelson, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 S Mchenry Rd, Buffalo Grove, IL 60089
Phone: 847-618-0351    Fax: 847-618-0766
Dr. Irina Goldvekht, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 S Mchenry Rd, Buffalo Grove, IL 60089
Phone: 847-618-0351    Fax: 847-618-0766

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.