2026 NPPES data Optometrist NPI 1295761278 O.D.
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TRINA CHENG, O.D.

Optometrist in GOLD CANYON, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
157
Medicare Part D claims · 51 beneficiaries · Optometrist avg: 257
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: TRINA CHENG, O.D. is a Optometrist ([object Object]) practicing in GOLD CANYON, Arizona with a Medicare Part D prescribing footprint of 157 claims across 51 beneficiaries — 29% brand-name prescribing .

What stands out: TRINA CHENG, O.D. filed 157 Medicare Part D claims in 2023 across GOLD CANYON, Arizona. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

TRINA CHENG, O.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/23/2006

NPI 1295761278

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

157 39% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Arizona

How Optometrist compares to other specialties among Arizona providers

Arizona providers

Optometrist share within Arizona

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — Optometrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Optometrist ABMS/AOA estimate

Est. board-certified rate (Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Optometrist) — ABMS / AOA estimate

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).

TRINA CHENG, O.D. is a Optometrist provider practicing in GOLD CANYON, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: O.D.. NPI: 1295761278. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

TRINA CHENG, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 6900 E US HIGHWAY 60, GOLD CANYON, AZ, 85118, with a listed phone of (480) 474-2020. NPI 1295761278 was issued on 06/23/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHENG most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 157 prescription claims written by this provider, covering 51 Medicare beneficiaries and totaling roughly $24K in drug spend, split 29% brand-name and 71% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

6900 E US HIGHWAY 60
GOLD CANYON, AZ 85118

Provider Details

NPI 1295761278
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 06/23/2006

Hospital and facility affiliations

Facilities where TRINA CHENG, O.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

GOLD CANYON EYE CENTER PLLC
GOLD CANYON, AZ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

TRINA CHENG, O.D. — brand share 29.0%
Specialty average (est.)

29% brand-name claims vs 71% generic, on 157 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

157
Total Claims
$24K
Total Drug Cost
51
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
292
Total Day Supply
8,269
Brand vs Generic
29% brand / 71% generic
Brand Drug Cost
$21K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
0.90
Gender Split
59% female / 41% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Latanoprost
83
Timolol Maleate
28
Restasis
Cyclosporine
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Optometrist Overview

How TRINA CHENG, O.D. fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

TRINA CHENG, O.D.'s 157 claims are below the specialty average of 257.

Nearby Optometrist Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as CHENG.

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is TRINA CHENG, O.D.'s specialty?
TRINA CHENG, O.D. specializes in Optometrist and practices in GOLD CANYON, Arizona. Credentials: O.D..
How much does TRINA CHENG, O.D. prescribe under Medicare Part D?
In 2023, TRINA CHENG, O.D. wrote 157 Medicare Part D claims totaling $24K in drug costs for 51 beneficiaries.
Where is TRINA CHENG, O.D. located?
TRINA CHENG, O.D. is located at 6900 E US HIGHWAY 60, GOLD CANYON, AZ, 85118. Phone: (480) 474-2020.
What is TRINA CHENG, O.D.'s NPI number?
TRINA CHENG, O.D.'s National Provider Identifier (NPI) is 1295761278, issued on 06/23/2006.
Does TRINA CHENG, O.D. prescribe more brand-name or generic drugs?
TRINA CHENG, O.D.'s prescribing is 29% brand-name and 71% generic drugs by claim count, with $21K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does TRINA CHENG, O.D. prescribe most often?
Based on 2023 Medicare Part D data, TRINA CHENG, O.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Restasis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TRINA CHENG, O.D. accept Medicare?
TRINA CHENG, O.D. appears in CMS Medicare data with 157 Part D claims and 51 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TRINA CHENG, O.D.'s credentials?
TRINA CHENG, O.D.'s NPI is 1295761278 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

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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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