Justin Duong-mac, OD - Medicare Optometrist in San Francisco, CA

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Justin Duong-mac, OD is a medicare enrolled "Optometrist" provider in San Francisco, California. His current practice location is 4150 Clement St, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 221-4810.

Justin Duong-mac is licensed to practice in California (license number 34538) 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 1568089738.

Contact Information

Justin Duong-mac, OD
4150 Clement St,
San Francisco, CA 94121-1563
(415) 221-4810
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameJustin Duong-mac
GenderMale
SpecialityOptometrist
Location4150 Clement St, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1568089738
  • Provider Enumeration Date: 07/02/2020
  • Last Update Date: 07/03/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 5597165894
  • Enrollment ID: I20210608001752

Medical Identifiers

Medical identifiers for Justin Duong-mac such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1568089738NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 34538 (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. Justin Duong-mac 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 NameLivermore Optometry Group
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1114062635
PECOS PAC ID: 1850283052
Enrollment ID: O20040324001822

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. Justin Duong-mac 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
Justin Duong-mac, OD
4150 Clement St,
San Francisco, CA 94121-1563

Ph: () -		Justin Duong-mac, OD
4150 Clement St,
San Francisco, CA 94121-1563

Ph: (415) 221-4810

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.