David Wei Ouyang, MD - Medicare Obstetrics/gynecology in Evanston, IL

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David Wei Ouyang, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Evanston, Illinois. He went to University Of Minnesota Medical School and graduated in 1999 and has 27 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Endeavor Health Medical Group and his current practice location is 2650 Ridge Ave Ste 1420, Evanston, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 570-2860.

David Wei Ouyang is licensed to practice in Illinois (license number 036115621) 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 1821043944.

Contact Information

David Wei Ouyang, MD
2650 Ridge Ave Ste 1420,
Evanston, IL 60201-1700
(847) 570-2860
(847) 733-5087

Map and Direction




Physician's Profile

Full NameDavid Wei Ouyang
GenderMale
SpecialityObstetrics/gynecology
Experience27 Years
Location2650 Ridge Ave Ste 1420, Evanston, 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:
  • David Wei Ouyang attended and graduated from University Of Minnesota Medical School in 1999
  NPI Data:
  • NPI Number: 1821043944
  • Provider Enumeration Date: 05/24/2006
  • Last Update Date: 07/30/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 4082615505
  • Enrollment ID: I20070126000290

Medical Identifiers

Medical identifiers for David Wei Ouyang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821043944NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 036115621 (Illinois)Primary
207V00000XObstetrics & Gynecology 217814 (Massachusetts)Secondary
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine 036115621 (Illinois)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Endeavor Health Clinical OperationsEvanston, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Endeavor Health Medical Group21633346993330

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. David Wei Ouyang allows following entities to bill medicare on his behalf.
Entity NameAdvocate Health and Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064
Entity NameSwedish Covenant Management Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760432348
PECOS PAC ID: 4486556016
Enrollment ID: O20040123000850
Entity NameEndeavor Health Medical Group
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. David Wei Ouyang 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
David Wei Ouyang, MD
2650 Ridge Ave Ste 1223,
Evanston, IL 60201-1700

Ph: (847) 570-2040		David Wei Ouyang, MD
2650 Ridge Ave Ste 1420,
Evanston, IL 60201-1700

Ph: (847) 570-2860

Reviews and Comments


Obstetrics & Gynecology Doctors in Evanston, IL

Dr. Mary Tilley Jenkins Vogel, MD
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Nandini Datta, MD
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Phone: 847-982-5869    Fax: 312-666-6228
Sunitha Chitra Suresh, MD
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Mara Dubnow,
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Dr. Andreea Mihai Newtson, M.D.
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Practice Location: 2650 Ridge Ave, Evanston, IL 60201
Phone: 847-570-2639    Fax: 847-733-5618
Jennifer J Kim, M.D.
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Practice Location: 1000 Central St Ste 717, Evanston, IL 60201
Phone: 847-864-1200    
Henry Chill,
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Medicare: Not Enrolled in Medicare
Practice Location: 2650 Ridge Ave Ste 1304, Evanston, IL 60201
Phone: 847-570-2520    

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).

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