NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1558867259 MD
Verify on CMS → Jason Chien, MD
Ophthalmology Physician in Allen, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,388 in Ophthalmology Physician, 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
67
Medicare Part D claims · 30 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.6/100
▼ 9 pts below national avg 83.5 · Mid-tier
Industry payments
$195.48
3 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Jason Chien, MD reported a CMS MIPS final score of 74.6/100 - below the 83.5 national average - and filed 67 Medicare Part D claims in 2024.
- 74.6/100
- MIPS score · -9 vs avg
- 67
- Part D claims, 2024
- 54%
- generic prescribing
- Likely
- board-certified (heuristic)
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 Jason Chien, MD
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 1558867259), first enumerated 04/02/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 67 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 74.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Industry payment transparency
$195.48 in reported industry payments (3 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Jason Chien, MD's individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- 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 1558867259 · Ophthalmology Physician
NPI-10 · ENUM-RECENT · TAX-MID · MIPS-BELOW · RX-TRACE · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1558867259
- ENUM-RECENT 2018
- TAX-MID 22K Ophthalmology Physician
- MIPS-BELOW 74.6/100
- RX-TRACE 67
- BOOK-LIGHT 1,439 in Texas
- PHOTO-FINISH Sami Kabbara, MD · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Chien · this pro…
Chien · this provider
74.6 MIPS pts
- Bhagvanji Meghpa…
Bhagvanji Meghpara, D.O.
74.6 MIPS pts
- Sami Kabbara, MD…
Sami Kabbara, MD
74.6 MIPS pts
- Ronald Mancini, …
Ronald Mancini, MD
74.6 MIPS pts
- Jill Brody, M.D.…
Jill Brody, M.D.
74.6 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Jason Chien, MD'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.
75 ≥ 13th percentile 13% 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 Jason Chien, MD sits
This provider among ophthalmology physician peers
Across the 8,767 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Jason Chien, MD writes more Part D claims than 5% of them and scores higher on MIPS quality than 16% - 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 ophthalmology physician peer from a representative sample of 60; the gold marker is Jason Chien, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Jason Chien, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Jason Chien, MD?
Below national averagePrimary specialty
Ophthalmology Physician
Medicare Part D claims
67 96% vs specialty avg
MIPS final score
74.6/100 8.9 pts vs avg
Specialty distribution in Texas
How Ophthalmology Physician compares to other specialties among Texas providers
Medicare quality performance, MIPS
Jason Chien, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 74.6/100
- 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 | 1558867259 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/02/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
74.5984
Final Score
Measured-score avg: 83.5
56.1252
Quality
59.2027
Cost
100
Promoting Interoperability
Reporting: Group practice
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 Jason Chien, MD. Source: openpaymentsdata.cms.gov.
Total received
$195
Largest payer
Bausch & Lomb Americas Inc.
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 - Texas TMB 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 ~77K Texas medical licensees in 2023 - they are NOT specific to Jason Chien, MD. To verify Jason Chien, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Jason Chien, MD - brand share 46.0%
Ophthalmology Physician average
46% brand-name claims vs 54% generic, on 67 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.
67
Total Claims
$2K
Total Drug Cost
30
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 76.7
- Total Day Supply
- 1,788
- Brand vs Generic
- 46% brand / 54% generic
- Brand Drug Cost
- $989
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 60.6 years
- Avg HCC Risk Score
- 4.94
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 17, 65-74: N/A, 75-84: N/A, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Moxifloxacin Moxifloxacin Hcl | 29 |
| Prednisolone Acetate | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Jason Chien, MD fits within the Ophthalmology Physician landscape nationally.
22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider
Jason Chien, MD's 67 claims are below the specialty average of 1,490.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chien, both outside Texas so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (74.6 here).
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmology Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Chien.
One of 1,439 Ophthalmology Physician providers enrolled in Texas, 5 are shown here.
Dr. Justin Aaker
MD
Georgetown, TX
Dr. Asad Abbas
M.D.
Baytown, TX
Dr. Ashkan Abbey
M.D.
Dallas, TX
Dr. Meredith Abbott
MD
Dallas, TX
Dr. Musa Abdelaziz
MD
Southlake, TX
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Jason Chien, MD's specialty? ▼
Jason Chien, MD specializes in Ophthalmology Physician and practices in Allen, Texas. Credentials: MD.
How much does Jason Chien, MD prescribe under Medicare Part D? ▼
In 2024, Jason Chien, MD wrote 67 Medicare Part D claims totaling $2K in drug costs for 30 beneficiaries.
What is Jason Chien, MD's Medicare quality score? ▼
Jason Chien, MD has a CMS MIPS Final Score of 74.6/100 (Quality: 56.1, Cost: 59.2). 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 Jason Chien, MD located? ▼
Jason Chien, MD is located at 28 PRESTIGE CIR UNIT 5100, Allen, TX, 75002. Phone: (469) 942-6500.
What is Jason Chien, MD's NPI number? ▼
Jason Chien, MD's National Provider Identifier (NPI) is 1558867259, issued on 04/02/2018.
Does Jason Chien, MD prescribe more brand-name or generic drugs? ▼
Jason Chien, MD's prescribing is 46% brand-name and 54% generic drugs by claim count, with $989 in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does Jason Chien, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Jason Chien, MD's most frequently prescribed drugs include Moxifloxacin, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jason Chien, MD accept Medicare? ▼
Jason Chien, MD appears in CMS Medicare data with 67 Part D claims and 30 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jason Chien, MD's credentials? ▼
Jason Chien, MD's NPI is 1558867259 with credentials MD. 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.