Dr. Mary Nguyen, O.D.
14+
Years in Practice
Practice Locations
1 location
Practice location
19845 Lake Chabot Rd, Castro Valley, California, 94546
(510) 800-9959
Open directionsAbout Dr. Mary Nguyen
Mary Nguyen, O.D. is a healthcare provider practicing in Castro Valley, CA.
Specialty Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
1
Location
1
States Licensed
Credentials & Board Certifications
Credentials verified via NPI Registry (NPPES)
Education & Training
No education details on file.
Licenses & Practice States
Licensed in 1 state
| State | License | Classification | Primary |
|---|---|---|---|
| California | OPT 14496 | Optometrist |
Public Data Summary for Dr. Mary Nguyen
With 14 years of practice, Dr. Mary Nguyen is an established healthcare provider, O.D.,. Dr. currently practices at in Castro Valley, California. Their National Provider Identifier (NPI) is 1285981274, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.
CMS Medicare data shows Dr. Mary Nguyen as a lower-volume healthcare provider, treating approximately 11 Medicare beneficiaries and delivering 18 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.
Under the Physician Payments Sunshine Act, CMS reports that Dr. Mary Nguyen received $39 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.
Transparency & Safety
Public records from CMS and OIG databases
Industry Payments
$39
Total payments received from pharmaceutical and medical device companies in 2023.
Source: CMS Open Payments (Sunshine Act)
Opioid Prescribing
This provider has no opioid prescriptions on file in Medicare Part D data.
Insurance & Accessibility
Reviews
Community reviews for Dr. Mary Nguyen
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FAQ
Frequently asked questions about Dr. Mary Nguyen
Where does Dr. Mary Nguyen practice?
Dr. Mary Nguyen practices at in Castro Valley, California.
Does Dr. Mary Nguyen accept Medicare?
CartoChrome does not have a verified Medicare assignment record for Dr. Mary Nguyen. CMS opt-out records should be checked directly, and patients should call the practice to confirm Medicare acceptance for their specific plan.
What is Dr. Mary Nguyen's NPI number?
Dr. Mary Nguyen's National Provider Identifier (NPI) is 1285981274. This is the unique 10-digit number the Centers for Medicare & Medicaid Services assigns to every practicing US healthcare provider. You can verify this number directly at the NPPES NPI Registry.
How long has Dr. Mary Nguyen been practicing?
Dr. Mary Nguyen has approximately 14 years of practice experience.