Dr Gregory Scott Wingren, OD - Medicare Optometrist in Napa, CA

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Dr Gregory Scott Wingren, OD is a medicare enrolled "Optometrist" provider in Napa, California. He graduated from medical school in 2013 and has 11 years of diverse experience with area of expertise as Optometry. He is a member of the group practice Eye Care Center Of Napa Valley A Medical Corporation, Permanente Medical Group Inc and his current practice location is 895 Trancas St, Napa, California. You can reach out to his office (for appointments etc.) via phone at (707) 252-2020.

Dr Gregory Scott Wingren is licensed to practice in California (license number 14767) 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 1164857140.

Contact Information

Dr Gregory Scott Wingren, OD
895 Trancas St,
Napa, CA 94558-3040
(707) 252-2020
(707) 252-0329

Map and Direction




Healthcare Provider's Profile

Full NameDr Gregory Scott Wingren
GenderMale
SpecialityOptometry
Experience11 Years
Location895 Trancas St, Napa, 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:
  • Dr Gregory Scott Wingren graduated from medical school in 2013
  NPI Data:
  • NPI Number: 1164857140
  • Provider Enumeration Date: 09/09/2013
  • Last Update Date: 02/24/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 0749415479
  • Enrollment ID: I20131105000091

Medical Identifiers

Medical identifiers for Dr Gregory Scott Wingren such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1164857140NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 14767 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Eye Care Center Of Napa Valley A Medical Corporation54967237938
Permanente Medical Group Inc89219102258376

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 Gregory Scott Wingren allows following entities to bill medicare on his behalf.
Provider NamePermanente Medical Group Inc
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Provider NameEye Care Center Of Napa Valley A Medical Corporation
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1790781409
PECOS PAC ID: 5496723793
Enrollment ID: O20040923001129
Provider NameDepartment Of State Hospitals
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1124078704
PECOS PAC ID: 9638174238
Enrollment ID: O20081031000305

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 Gregory Scott Wingren 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 Gregory Scott Wingren, OD
895 Trancas St,
Napa, CA 94558-3040

Ph: (707) 252-2020		Dr Gregory Scott Wingren, OD
895 Trancas St,
Napa, CA 94558-3040

Ph: (707) 252-2020

Reviews and Comments


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Dr. Tanya K Mahaphon, O.D.
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Samuel Joseph Herbert, O.D.
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Loukia Hadjiyianni, OD
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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.