Caseylin Ong Cheng, PA-C - Medicare Physician Assistant in Lombard, IL

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Caseylin Ong Cheng, PA-C is a medicare enrolled "Physician Assistant - Medical" in Lombard, Illinois. Her current practice location is 2500 S Highland Ave Ste 230, Lombard, Illinois. You can reach out to her office (for appointments etc.) via phone at (630) 429-9000.

Caseylin Ong Cheng is licensed to practice in Illinois (license number 085.010123) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1205557378.

Contact Information

Caseylin Ong Cheng, PA-C
2500 S Highland Ave Ste 230,
Lombard, IL 60148-7103
(630) 429-9000
(630) 429-9060

Map and Direction




Provider's Profile

Full NameCaseylin Ong Cheng
GenderFemale
SpecialityPhysician Assistant - Medical
Location2500 S Highland Ave Ste 230, Lombard, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1205557378
  • Provider Enumeration Date: 09/07/2022
  • Last Update Date: 04/01/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 1850741620
  • Enrollment ID: I20231220002751

Medical Identifiers

Medical identifiers for Caseylin Ong Cheng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205557378NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363AM0700XPhysician Assistant - Medical 085.010123 (Illinois)Primary

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. Caseylin Ong Cheng allows following entities to bill medicare on her behalf.
Entity NamePrimary Care Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235461765
PECOS PAC ID: 3870623101
Enrollment ID: O20100614000473
Entity NameIntegrated Imaging Consultants LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700285335
PECOS PAC ID: 2567784408
Enrollment ID: O20141204001441

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. Caseylin Ong Cheng 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
Caseylin Ong Cheng, PA-C
2500 S Highland Ave Ste 230,
Lombard, IL 60148-7103

Ph: (630) 429-9000		Caseylin Ong Cheng, PA-C
2500 S Highland Ave Ste 230,
Lombard, IL 60148-7103

Ph: (630) 429-9000

Reviews and Comments


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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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