Christina Wong Grattan, OD - Medicare Optometrist in Torrance, CA

Christina Wong Grattan, OD is a medicare enrolled "Optometrist" provider in Torrance, California. She graduated from medical school in 2013 and has 11 years of diverse experience with area of expertise as Optometry. She is a member of the group practice Providence Medical Institute and her current practice location is 4825 Torrance Blvd Ste 100, Torrance, California. You can reach out to her office (for appointments etc.) via phone at (310) 937-6585.

Christina Wong Grattan is licensed to practice in California (license number 14709) 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 1194150953.

Contact Information

Christina Wong Grattan, OD
4825 Torrance Blvd Ste 100,
Torrance, CA 90503-4167
(310) 937-6585
(310) 542-3809

Map and Direction




Healthcare Provider's Profile

Full NameChristina Wong Grattan
GenderFemale
SpecialityOptometry
Experience11 Years
Location4825 Torrance Blvd Ste 100, Torrance, 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:
  • Christina Wong Grattan graduated from medical school in 2013
  NPI Data:
  • NPI Number: 1194150953
  • Provider Enumeration Date: 09/11/2013
  • Last Update Date: 08/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1759504301
  • Enrollment ID: I20140529000234

Medical Identifiers

Medical identifiers for Christina Wong Grattan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194150953NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 14709 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Medical Institute5991609737290

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. Christina Wong Grattan allows following entities to bill medicare on her behalf.
Provider NameProvidence Medical Institute
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1417915760
PECOS PAC ID: 5991609737
Enrollment ID: O20031121000910
Provider NameTakaki And Monji Optometry
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1205962768
PECOS PAC ID: 2567405731
Enrollment ID: O20050608000630
Provider NameMonji Optometry Inc
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1205962768
PECOS PAC ID: 6305152208
Enrollment ID: O20150908001351

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. Christina Wong Grattan 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
Christina Wong Grattan, OD
4825 Torrance Blvd Ste 100,
Torrance, CA 90503-4167

Ph: (310) 937-6585
Christina Wong Grattan, OD
4825 Torrance Blvd Ste 100,
Torrance, CA 90503-4167

Ph: (310) 937-6585

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.