Dr William John Bigham, MD - Medicare Ophthalmology in Coronado, CA

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Dr William John Bigham, MD is a medicare enrolled "Ophthalmology" physician in Coronado, California. His current practice location is 1317 Ynez Pl Ste A, Coronado, California. You can reach out to his office (for appointments etc.) via phone at (619) 435-8800.

Dr William John Bigham is licensed to practice in California (license number G54117) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1104893692.

Contact Information

Dr William John Bigham, MD
1317 Ynez Pl Ste A,
Coronado, CA 92118-3909
(619) 435-8800
(619) 435-9197

Map and Direction




Physician's Profile

Full NameDr William John Bigham
GenderMale
SpecialityOphthalmology
Location1317 Ynez Pl Ste A, Coronado, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1104893692
  • Provider Enumeration Date: 03/02/2006
  • Last Update Date: 09/06/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3274501499
  • Enrollment ID: I20040923001290

Medical Identifiers

Medical identifiers for Dr William John Bigham such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104893692NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology G54117 (California)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. Dr William John Bigham allows following entities to bill medicare on his behalf.
Entity NamePerry, Pratt, & Coden , a Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982808390
PECOS PAC ID: 2769433648
Enrollment ID: O20050208000832
Entity NameIsland Eye Specialists APC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154008027
PECOS PAC ID: 8325402597
Enrollment ID: O20230907000890

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. Dr William John Bigham 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
Dr William John Bigham, MD
1317 Ynez Pl Ste A,
Coronado, CA 92118-3909

Ph: (619) 435-8800		Dr William John Bigham, MD
1317 Ynez Pl Ste A,
Coronado, CA 92118-3909

Ph: (619) 435-8800

Reviews and Comments


Ophthalmology Doctors in Coronado, CA

Dr. Thomas James Avallone, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 1317 Ynez Place, Coronado, CA 92118
Phone: 619-435-8800    Fax: 888-635-8108
Dr. Lantz E Arnell, MD
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 1516 Glorietta Blvd, Coronado, CA 92118
Phone: 619-435-4046    

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.