NPI registry status
Active
2026 NPPES data Optometrist NPI 1528279890 O.D.
Verify on CMS → Christine Tseng, O.D.
Optometrist in City Of Industry, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 60,484 in Optometrist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Industry payments
$699.9
21 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Christine Tseng, O.D. is an Optometrist in City Of Industry, California, listed in the federal CMS National Provider Identifier registry.
- $699.9
- industry payments (Sunshine Act)
- #29
- Optometrist rank among California specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1528279890 · Optometrist
NPI-10 · ENUM-MID · TAX-MEGA · RX-NONE · BOOK-MID · PHOTO-ENUM
- NPI-10 1528279890
- ENUM-MID 2007
- TAX-MEGA 60K Optometrist
- RX-NONE No Part D
- BOOK-MID 8,067 in California
- PHOTO-ENUM Daniel Toocheck · 2007
What does the federal data show about Christine Tseng, O.D.?
Quality data not reportedPrimary specialty
Optometrist
Specialty distribution in California
How Optometrist compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Optometrist. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1528279890 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Female |
| NPI Issued | 05/25/2007 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Christine Tseng, O.D.. Source: openpaymentsdata.cms.gov.
Total received
$700
Largest payer
Alcon Vision LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Christine Tseng, O.D.. To verify Christine Tseng, O.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Optometrist Overview
How Christine Tseng, O.D. fits within the Optometrist landscape nationally.
60,484
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider
Nationwide Optometrist peers with similar MIPS or enrollment year
Two federal-record peer sets for Tseng, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Optometrist Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Tseng.
One of 8,067 Optometrist providers enrolled in California, 5 are shown here.
Dr. Douglas Aaseby
O.D.
El Dorado Hills, CA
Dr. Saloumeh Abadi
OD
Santa Monica, CA
Davoud Abbasi
Fillmore, CA
Dr. Christopher Abbott
O.D.
Santee, CA
Dr. Sara Abboud
OD
Albany, CA
Compare Optometrist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christine Tseng, O.D.'s specialty? ▼
Christine Tseng, O.D. specializes in Optometrist and practices in City Of Industry, California. Credentials: O.D..
Where is Christine Tseng, O.D. located? ▼
Christine Tseng, O.D. is located at 17550 CASTLETON ST, City Of Industry, CA, 91748. Phone: (626) 581-1899.
What is Christine Tseng, O.D.'s NPI number? ▼
Christine Tseng, O.D.'s National Provider Identifier (NPI) is 1528279890, issued on 05/25/2007.
How many Optometrist providers are there in the US? ▼
There are 60,484 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
Does Christine Tseng, O.D. accept Medicare? ▼
Christine Tseng, O.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christine Tseng, O.D.'s credentials? ▼
Christine Tseng, O.D.'s NPI is 1528279890 with credentials O.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.