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 983 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
564
Medicare Part D claims · 137 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 593
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$344.41
14 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Brian Tieu, M.D., PH.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 564 Medicare Part D claims in 2024.
- 75/100
- CMS neutral score · not measured
- 564
- Part D claims, 2024
- 68%
- 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 Brian Tieu, M.D., PH.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1962780023), first enumerated 07/22/2011.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 564 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)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
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
$344.41 in reported industry payments (14 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1962780023 · Retina Specialist (Ophthalmology) Physician
NPI-10 · ENUM-MID · TAX-NARROW · MIPS-NEUTRAL · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1962780023
- ENUM-MID 2011
- TAX-NARROW 983
- MIPS-NEUTRAL 75/100
- RX-LIGHT 564
- BOOK-THIN 3 in Mississippi
- PHOTO-ENUM Cindy Mi, M.D. · 2011
Brian Tieu, M.D., PH.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
564 ≥ 65th percentile 65% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
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.?
CMS neutral score, not measuredPrimary specialty
Retina Specialist (Ophthalmology) Physician
Medicare Part D claims
564 5% vs specialty avg
MIPS final score
75/100
Specialty distribution in Mississippi
How Retina Specialist (Ophthalmology) Physician compares to other specialties among Mississippi providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 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
CMS neutral threshold · not measured
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 32.0%
Retina Specialist (Ophthalmology) Physician average
32% brand-name claims vs 68% generic, on 564 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.
564
Total Claims
$30K
Total Drug Cost
137
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 942.167
- Total Day Supply
- 26,442
- Brand vs Generic
- 32% brand / 68% generic
- Brand Drug Cost
- $20K
- Generic Drug Cost
- $11K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 72.4 years
- Avg HCC Risk Score
- 1.84
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 21, 65-74: 53, 75-84: 48, 85+: 15
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Brian Tieu, M.D., PH.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Prednisolone Acetate
Prednisolone Acetate
115 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
99 claims
- Ketorolac Trometha…
Ketorolac Tromethamine
78 claims
- Latanoprost
Latanoprost
65 claims
- Brimonidine Tartrate 45
Brimonidine Tartrate
45 claims
- Prednisone 26
Prednisone
26 claims
- Neomycin-Polymyxin… 22
Neomycin-Polymyxin-Dexameth
22 claims
- Erythromycin 15
Erythromycin
15 claims
| Drug | Claims |
|---|---|
| Prednisolone Acetate | 115 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 99 |
| Ketorolac Tromethamine | 78 |
| Latanoprost | 65 |
| Brimonidine Tartrate | 45 |
| Prednisone | 26 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 22 |
| Erythromycin Erythromycin Base | 15 |
| Valacyclovir Valacyclovir Hcl | 14 |
| Timolol Maleate | 12 |
* 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.
983
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
593
Avg Claims per Provider
Brian Tieu, M.D., PH.D.'s 564 claims are below the specialty average of 593.
Nationwide Retina Specialist (Ophthalmology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Tieu, both outside Mississippi so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2011)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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.
One of 3 Retina Specialist (Ophthalmology) Physician providers enrolled in Mississippi, 2 are shown here.
Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →
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 2024, Brian Tieu, M.D., PH.D. wrote 564 Medicare Part D claims totaling $30K in drug costs for 137 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. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. 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 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 32% brand-name and 68% generic drugs by claim count, with $20K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US? ▼
There are 983 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 593 Medicare Part D claims per year.
What drugs does Brian Tieu, M.D., PH.D. prescribe most often? ▼
Based on 2024 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 564 Part D claims and 137 Medicare beneficiaries in 2024. 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 (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.