Michael William Gaynon, MD - Medicare Ophthalmology in Palo Alto, CA

Michael William Gaynon, MD is a medicare enrolled "Ophthalmology" physician in Palo Alto, California. His current practice location is 725 Welch Rd, Palo Alto, California. You can reach out to his office (for appointments etc.) via phone at (650) 497-8000.

Michael William Gaynon is licensed to practice in California (license number C37116) 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 1023127974.

Contact Information

Michael William Gaynon, MD
725 Welch Rd,
Palo Alto, CA 94304-1601
(650) 497-8000
Not Available

Map and Direction




Physician's Profile

Full NameMichael William Gaynon
GenderMale
SpecialityOphthalmology
Location725 Welch Rd, Palo Alto, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1023127974
  • Provider Enumeration Date: 08/30/2006
  • Last Update Date: 04/04/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 4789781758
  • Enrollment ID: I20070525000578

Medical Identifiers

Medical identifiers for Michael William Gaynon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023127974NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology C37116 (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. Michael William Gaynon allows following entities to bill medicare on his behalf.
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348
Entity NameLpch Medical Group Div Of Lucile
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417907940
PECOS PAC ID: 0840298543
Enrollment ID: O20061113000232

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. Michael William Gaynon 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
Michael William Gaynon, MD
1804 Embarcadero Rd Ste 100,
Palo Alto, CA 94303-3318

Ph: () -
Michael William Gaynon, MD
725 Welch Rd,
Palo Alto, CA 94304-1601

Ph: (650) 497-8000

Reviews and Comments


Ophthalmology Doctors in Palo Alto, CA

Dr. Thomas Tayeri, M.D.
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Laura C. Huang, M.D.
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Jonathan Caesar Chou, MD
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Phone: 650-723-4000    
Solin Saleh,
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Practice Location: 2452 Watson Ct, Palo Alto, CA 94303
Phone: 650-723-6995    
Julie Younghee Cho, M.D, PH.D
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Practice Location: 2452 Watson Ct, Palo Alto, CA 94303
Phone: 650-723-6995    
Scott Reed Lambert, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    

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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