NPI registry status
Active
2026 NPPES data Optometrist NPI 1629189121
Verify on CMS → Chin Choi
Optometrist in Pahrump, Nevada.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 61,426 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.
Prescribing volume
203
Medicare Part D claims · 56 beneficiaries · Optometrist avg: 279
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 84 pts below national avg 83.5 · Penalty band
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Chin Choi reported a CMS MIPS final score of 0/100 - below the 83.5 national average - and filed 203 Medicare Part D claims in 2024.
- 0/100
- MIPS score · -83 vs avg
- 203
- Part D claims, 2024
- 67%
- generic prescribing
- ≥0th
- pct among measured MIPS (lower-bound band)
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.
Federal trust snapshot
What official records show about Chin Choi
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1629189121), first enumerated 08/31/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 203 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 0/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1629189121 · Optometrist
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-LOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1629189121
- ENUM-LEGACY 2006
- TAX-MEGA 61K Optometrist
- MIPS-LOW 0/100
- RX-LIGHT 203
- BOOK-LIGHT 534 in Nevada
- PHOTO-FINISH Austin Anderson, OD · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Choi · this prov… 0
Choi · this provider
0 MIPS pts
- Kenny Blackston,… 0
Kenny Blackston, O.D.
0 MIPS pts
- Austin Anderson,… 0
Austin Anderson, OD
0 MIPS pts
- Brett Balocca, O… 0
Brett Balocca, OD
0 MIPS pts
- Brett Basden, O.… 0
Brett Basden, O.D.
0 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Chin Choi's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
0 ≥ 0th percentile 0% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Chin Choi sits
This provider among optometrist peers
Across the 6,187 optometrist providers who report both Medicare Part D prescribing and a MIPS quality score, Chin Choi writes more Part D claims than 34% of them and scores higher on MIPS quality than 0% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one optometrist peer from a representative sample of 60; the gold marker is Chin Choi. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Chin Choi?
Below national averagePrimary specialty
Optometrist
Medicare Part D claims
203 27% vs specialty avg
MIPS final score
0/100 83.5 pts vs avg
Specialty distribution in Nevada
How Optometrist compares to other specialties among Nevada providers
Medicare quality performance, MIPS
Chin Choi's 2023 MIPS final score plotted against the Optometrist national average
- MIPS Final Score
- 0/100
- vs 83.5 national avg · 2023 performance year
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 | 1629189121 |
|---|---|
| Specialty | Optometrist |
| Gender | Female |
| NPI Issued | 08/31/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Measured-score avg: 83.5
0
Quality
Reporting: Individual
Brand vs generic prescribing mix · Above average
Chin Choi - brand share 33.0%
Optometrist average
33% brand-name claims vs 67% generic, on 203 2024 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 2024.
203
Total Claims
$23K
Total Drug Cost
56
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 442.733
- Total Day Supply
- 12,961
- Brand vs Generic
- 33% brand / 67% generic
- Brand Drug Cost
- $15K
- Generic Drug Cost
- $8K
Patient Demographics
- Average Patient Age
- 78.1 years
- Avg HCC Risk Score
- 1.21
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: 30, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Chin Choi prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
86 claims
- Timolol Maleate 28
Timolol Maleate
28 claims
- Dorzolamide-Timolol 19
Dorzolamide-Timolol
19 claims
- Brimonidine Tartrate 16
Brimonidine Tartrate
16 claims
| Drug | Claims |
|---|---|
| Latanoprost | 86 |
| Timolol Maleate | 28 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 19 |
| Brimonidine Tartrate | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Chin Choi fits within the Optometrist landscape nationally.
61,426
Optometrist Providers in US
56
States with Optometrist
279
Avg Claims per Provider
Chin Choi's 203 claims are below the specialty average of 279.
Nationwide Optometrist peers with similar MIPS or enrollment year
Two federal-record peer sets for Choi, both outside Nevada so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (0 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Optometrist Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Choi.
One of 534 Optometrist providers enrolled in Nevada, 5 are shown here.
Gary Abel
Carson City, NV
Dr. Amy Abraham
O.D.
Henderson, NV
Dr. Cheryl Adlington
O.D.
Reno, NV
Dr. Patrick Adlington
OD, FAAO
Reno, NV
Dr. Nadia Afkhami
OD, MS
Henderson, NV
Compare Optometrist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Chin Choi's specialty? ▼
Chin Choi specializes in Optometrist and practices in Pahrump, Nevada.
How much does Chin Choi prescribe under Medicare Part D? ▼
In 2024, Chin Choi wrote 203 Medicare Part D claims totaling $23K in drug costs for 56 beneficiaries.
What is Chin Choi's Medicare quality score? ▼
Chin Choi has a CMS MIPS Final Score of 0/100 (Quality: 0). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Chin Choi located? ▼
Chin Choi is located at 300 S HIGHWAY 160, Pahrump, NV, 89048. Phone: (775) 537-0111.
What is Chin Choi's NPI number? ▼
Chin Choi's National Provider Identifier (NPI) is 1629189121, issued on 08/31/2006.
Does Chin Choi prescribe more brand-name or generic drugs? ▼
Chin Choi's prescribing is 33% brand-name and 67% generic drugs by claim count, with $15K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 61,426 Optometrist providers across 56 states in the US. The average Optometrist provider writes 279 Medicare Part D claims per year.
What drugs does Chin Choi prescribe most often? ▼
Based on 2024 Medicare Part D data, Chin Choi's most frequently prescribed drugs include Latanoprost, Timolol Maleate, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chin Choi accept Medicare? ▼
Chin Choi appears in CMS Medicare data with 203 Part D claims and 56 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chin Choi's credentials? ▼
Chin Choi's NPI is 1629189121. 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.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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 August 2026 (NPPES) / 2024 (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 August 2026.