Vivian Pham, OD
NPI 1225879265 · Optometrist · Palo Alto, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivian Pham, OD is a Optometrist provider in Palo Alto, CA (NPI 1225879265).
Provider details
- NPI number
- 1225879265
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 35731 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
2 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$106 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3801 Miranda Ave Uppr Ca94304Palo Alto, CA 94304-1290Phone: (650) 493-5000
Registry dates
- Enumerated
- 2024-06-04
- Last updated
- 2025-07-16
- Certified
- 2025-07-16
Frequently asked questions
- What is Vivian Pham's NPI number?
- Vivian Pham's National Provider Identifier (NPI) is 1225879265, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Pham's specialty?
- Vivian Pham is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Vivian Pham located?
- Vivian Pham's practice location on file with NPPES is 109 California Ave Ste D101a, Palo Alto, CA 94306-1926.
- What is Vivian Pham's phone number?
- The practice phone number listed in the NPPES registry for Vivian Pham is (650) 322-6656.
- Does Vivian Pham accept Medicare?
- Vivian Pham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivian Pham's NPI active?
- Yes — Vivian Pham's NPI (1225879265) is active in the NPPES registry as of the last update on 2025-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.