Mr William To, PA - Medicare Physician Assistant in Garden Grove, CA

Mr William To, PA is a medicare enrolled "Physician Assistant" in Garden Grove, California. He graduated from nursing school in 2004 and has 20 years of diverse experience with area of expertise as Physician Assistant. He is a member of the group practice University Surgeons Of Orange A Medical Group and his current practice location is 12555 Garden Grove Blvd Ste 504, Garden Grove, California. You can reach out to his office (for appointments etc.) via phone at (714) 537-5609.

Mr William To is licensed to practice in California (license number PA21861) 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 1336425644.

Contact Information

Mr William To, PA
12555 Garden Grove Blvd Ste 504,
Garden Grove, CA 92843-1903
(714) 537-5609
Not Available

Map and Direction




Provider's Profile

Full NameMr William To
GenderMale
SpecialityPhysician Assistant
Experience20 Years
Location12555 Garden Grove Blvd Ste 504, Garden Grove, California
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:
  • Mr William To graduated from nursing school in 2004
  NPI Data:
  • NPI Number: 1336425644
  • Provider Enumeration Date: 11/01/2011
  • Last Update Date: 11/01/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 7113170457
  • Enrollment ID: I20140627002209

Medical Identifiers

Medical identifiers for Mr William To such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336425644NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant PA21861 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of California Irvine Medical CenterOrange, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Surgeons Of Orange A Medical Group690170522782

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. Mr William To 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
Mr William To, PA
12555 Garden Grove Blvd Ste 504,
Garden Grove, CA 92843-1903

Ph: (714) 537-5609
Mr William To, PA
12555 Garden Grove Blvd Ste 504,
Garden Grove, CA 92843-1903

Ph: (714) 537-5609

Reviews and Comments


Physician Assistant Nurses in Garden Grove, CA

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Ms. Saadia Parekh, PA-C
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Phone: 714-537-6595    Fax: 714-537-2176
Prof. Kirsten Hope Fick, P.A.
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Medicare: Accepting Medicare Assignments
Practice Location: 12556 Valley View St, Garden Grove, CA 92845
Phone: 714-897-9355    Fax: 714-897-5117

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.