Coral Yvonne St Onge, OD - Medicare Optometrist in San Marcos, CA

Coral Yvonne St Onge, OD is a medicare enrolled "Optometrist" provider in San Marcos, California. She graduated from medical school in 2021 and has 5 years of diverse experience with area of expertise as Optometry. She is a member of the group practice North County Eye Center, Inc. and her current practice location is 838 Nordahl Rd Ste 220, San Marcos, California. You can reach out to her office (for appointments etc.) via phone at (760) 738-9985.

Coral Yvonne St Onge is licensed to practice in California (license number OPT34914-TLG) 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 1952060873.

Contact Information

Coral Yvonne St Onge, OD
838 Nordahl Rd Ste 220,
San Marcos, CA 92069-3595
(760) 738-9985
(800) 838-2695

Map and Direction




Healthcare Provider's Profile

Full NameCoral Yvonne St Onge
GenderFemale
SpecialityOptometry
Experience5 Years
Location838 Nordahl Rd Ste 220, San Marcos, California
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:
  • Coral Yvonne St Onge graduated from medical school in 2021
  NPI Data:
  • NPI Number: 1952060873
  • Provider Enumeration Date: 12/08/2021
  • Last Update Date: 11/21/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 7517358005
  • Enrollment ID: I20211222002160

Medical Identifiers

Medical identifiers for Coral Yvonne St Onge such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1952060873NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist OPT34914-TLG (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North County Eye Center, Inc.014327422511

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. Coral Yvonne St Onge allows following entities to bill medicare on her behalf.
Provider NameNorth County Eye Center, Inc.
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1184797169
PECOS PAC ID: 0143274225
Enrollment ID: O20050310001091
Provider NameKaren Peschke Od A Professional Corporation Of Optometry
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1528192465
PECOS PAC ID: 5193878809
Enrollment ID: O20090728000709
Provider NameNorth County Eye Physicians, Inc
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1639437536
PECOS PAC ID: 1355507567
Enrollment ID: O20120716000261

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. Coral Yvonne St Onge 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
Coral Yvonne St Onge, OD
848 Loganberry Ct,
San Marcos, CA 92069-1845

Ph: (760) 845-3001
Coral Yvonne St Onge, OD
838 Nordahl Rd Ste 220,
San Marcos, CA 92069-3595

Ph: (760) 738-9985

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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