NPI registry status
Active
2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1962780023 M.D., PH.D.
Verify on CMS → Brian Tieu, M.D., PH.D.
Retina Specialist (Ophthalmology) Physician in Ridgeland, Mississippi.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 913 in Retina Specialist (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
464
Medicare Part D claims · 132 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$344.41
14 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Brian Tieu, M.D., PH.D. reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 464 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 464
- Part D claims, 2023
- 67%
- 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.
Brian Tieu, M.D., PH.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 15th percentile higher than 15% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Brian Tieu, M.D., PH.D. sits
This provider among retina specialist (ophthalmology) physician peers
Across the 583 retina specialist (ophthalmology) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Brian Tieu, M.D., PH.D. writes more Part D claims than 55% of them and scores higher on MIPS quality than 7% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one retina specialist (ophthalmology) physician peer from a representative sample of 60; the gold marker is Brian Tieu, M.D., PH.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Brian Tieu, M.D., PH.D. 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 Brian Tieu, M.D., PH.D.?
Below national averagePrimary specialty
Retina Specialist (Ophthalmology) Physician
Medicare Part D claims
464 17% vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in Mississippi
How Retina Specialist (Ophthalmology) Physician compares to other specialties among Mississippi providers
Medicare quality performance, MIPS
Brian Tieu, M.D., PH.D.'s 2023 MIPS final score plotted against the Retina Specialist (Ophthalmology) Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Retina Specialist (Ophthalmology) Physician) - 75/100 vs national avg 83.1
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).
Brian Tieu, M.D., PH.D. appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding M.D., PH.D. credentials at 281 TRACE COLONY PARK DRIVE, Ridgeland, MS, 39157, with a listed phone of (601) 324-4066. NPI 1962780023 was issued on 07/22/2011.
Medicare Part D records for calendar year 2023 show 464 prescription claims written by this provider, covering 132 Medicare beneficiaries and totaling roughly $27K in drug spend, split 33% brand-name and 67% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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
Provider Details
| NPI | 1962780023 |
|---|---|
| Specialty | Retina Specialist (Ophthalmology) Physician |
| Credentials | M.D., PH.D. |
| Gender | Male |
| NPI Issued | 07/22/2011 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
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 Brian Tieu, M.D., PH.D.. Source: openpaymentsdata.cms.gov.
Total received
$344
Largest payer
Biogen, 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.
Brand vs generic prescribing mix · Above average
Brian Tieu, M.D., PH.D. - brand share 33.0%
Retina Specialist (Ophthalmology) Physician average
33% brand-name claims vs 67% generic, on 464 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.
464
Total Claims
$27K
Total Drug Cost
132
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 720
- Total Day Supply
- 19,678
- Brand vs Generic
- 33% brand / 67% generic
- Brand Drug Cost
- $18K
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 20
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 1.79
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 20, 65-74: 53, 75-84: 48, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Brian Tieu, M.D., PH.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisolone Acetate
Prednisolone Acetate
95 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
88 claims
- Ketorolac Trometha…
Ketorolac Tromethamine
61 claims
- Latanoprost
Latanoprost
38 claims
- Brimonidine Tartrate 28
Brimonidine Tartrate
28 claims
- Prednisone 21
Prednisone
21 claims
- Timolol Maleate 15
Timolol Maleate
15 claims
- Neomycin-Polymyxin… 14
Neomycin-Polymyxin-Dexameth
14 claims
| Drug | Claims |
|---|---|
| Prednisolone Acetate | 95 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 88 |
| Ketorolac Tromethamine | 61 |
| Latanoprost | 38 |
| Brimonidine Tartrate | 28 |
| Prednisone | 21 |
| Timolol Maleate | 15 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 14 |
| Valacyclovir Valacyclovir Hcl | 14 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Retina Specialist (Ophthalmology) Physician in MS →
All providers in Mississippi →
Compare specialties →
Retina Specialist (Ophthalmology) Physician Overview
How Brian Tieu, M.D., PH.D. fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.
913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider
Brian Tieu, M.D., PH.D.'s 464 claims are below the specialty average of 558.
Nearby Retina Specialist (Ophthalmology) Physician Providers in Mississippi
Other clinicians with the same primary specialty enrolled in Mississippi, drawn from the same CMS NPPES roster as Tieu.
Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Mississippi medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Retina Specialist (Ophthalmology) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Brian Tieu, M.D., PH.D.'s specialty? ▼
Brian Tieu, M.D., PH.D. specializes in Retina Specialist (Ophthalmology) Physician and practices in Ridgeland, Mississippi. Credentials: M.D., PH.D..
How much does Brian Tieu, M.D., PH.D. prescribe under Medicare Part D? ▼
In 2023, Brian Tieu, M.D., PH.D. wrote 464 Medicare Part D claims totaling $27K in drug costs for 132 beneficiaries.
What is Brian Tieu, M.D., PH.D.'s Medicare quality score? ▼
Brian Tieu, M.D., PH.D. has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Brian Tieu, M.D., PH.D. located? ▼
Brian Tieu, M.D., PH.D. is located at 281 TRACE COLONY PARK DRIVE, Ridgeland, MS, 39157. Phone: (601) 324-4066.
What is Brian Tieu, M.D., PH.D.'s NPI number? ▼
Brian Tieu, M.D., PH.D.'s National Provider Identifier (NPI) is 1962780023, issued on 07/22/2011.
Does Brian Tieu, M.D., PH.D. prescribe more brand-name or generic drugs? ▼
Brian Tieu, M.D., PH.D.'s prescribing is 33% brand-name and 67% generic drugs by claim count, with $18K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US? ▼
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does Brian Tieu, M.D., PH.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Brian Tieu, M.D., PH.D.'s most frequently prescribed drugs include Prednisolone Acetate, Dorzolamide-Timolol, Ketorolac Tromethamine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brian Tieu, M.D., PH.D. accept Medicare? ▼
Brian Tieu, M.D., PH.D. appears in CMS Medicare data with 464 Part D claims and 132 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brian Tieu, M.D., PH.D.'s credentials? ▼
Brian Tieu, M.D., PH.D.'s NPI is 1962780023 with credentials M.D., PH.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.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). 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 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
Compiled from official public sources by the PlainDoctor editorial team.