Huiyi Chen, MD - Medicare Ophthalmology in Saint Louis, MO

Huiyi Chen, MD is a medicare enrolled "Ophthalmology" physician in Saint Louis, Missouri. She graduated from medical school in 1989 and has 35 years of diverse experience with area of expertise as Ophthalmology. She is a member of the group practice Mercy Clinic Ophthalmology Llc and her current practice location is 621 S New Ballas Rd Ste 5006b, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 251-5300.

Huiyi Chen is licensed to practice in Missouri (license number 2015015441) 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 1851603609.

Contact Information

Huiyi Chen, MD
621 S New Ballas Rd Ste 5006b,
Saint Louis, MO 63141-8270
(314) 251-5300
Not Available

Map and Direction




Physician's Profile

Full NameHuiyi Chen
GenderFemale
SpecialityOphthalmology
Experience35 Years
Location621 S New Ballas Rd Ste 5006b, Saint Louis, Missouri
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:
  • Huiyi Chen graduated from medical school in 1989
  NPI Data:
  • NPI Number: 1851603609
  • Provider Enumeration Date: 07/09/2010
  • Last Update Date: 07/25/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4183868805
  • Enrollment ID: I20150724012500

Medical Identifiers

Medical identifiers for Huiyi Chen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851603609NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 2015015441 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Hospital St LouisSaint louis, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Clinic Ophthalmology Llc195154442810

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. Huiyi Chen allows following entities to bill medicare on her behalf.
Entity NameMercy Hospitals East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851431738
PECOS PAC ID: 1658276811
Enrollment ID: O20031218000107
Entity NameMercy Clinic Ophthalmology Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003179656
PECOS PAC ID: 1951544428
Enrollment ID: O20130830000818

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. Huiyi Chen 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
Huiyi Chen, MD
621 S New Ballas Rd Ste 5006b,
Saint Louis, MO 63141-8270

Ph: (314) 251-5300
Huiyi Chen, MD
621 S New Ballas Rd Ste 5006b,
Saint Louis, MO 63141-8270

Ph: (314) 251-5300

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).

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.