NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1366547689 MD
Verify on CMS → Gaby Thai, MD
Neurology Physician in Orange, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 19,866 in Neurology 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
2K
Medicare Part D claims · 272 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
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
Gaby Thai, MD reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 1,994 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 2K
- Part D claims, 2023
- 86%
- 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.
Gaby Thai, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
100 Top 7% higher than 93% 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 Gaby Thai, MD sits
This provider among neurology physician peers
Across the 5,437 neurology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Gaby Thai, MD writes more Part D claims than 69% of them and scores higher on MIPS quality than 92% - placing this provider in the high-volume, high-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 neurology physician peer from a representative sample of 60; the gold marker is Gaby Thai, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Gaby Thai, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Gaby Thai, MD?
High performer (top quartile)Primary specialty
Neurology Physician
Medicare Part D claims
1,994 52% vs specialty avg
MIPS final score
100/100 16.9 pts vs avg
Specialty distribution in California
How Neurology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Gaby Thai, MD's 2023 MIPS final score plotted against the Neurology Physician national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Neurology Physician) - 100/100 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).
Gaby Thai, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 101 THE CITY DR S, Orange, CA, 92868, with a listed phone of (714) 456-5105. NPI 1366547689 was issued on 09/13/2006.
Medicare Part D records for calendar year 2023 show 1,994 prescription claims written by this provider, covering 272 Medicare beneficiaries and totaling roughly $2.2 million in drug spend, split 13% brand-name and 86% generic by claim count, with an opioid prescribing rate of 0.6%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 82.4), compared with the national average of 83.1.
Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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 | 1366547689 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 09/13/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Avg: 83.1
82.4039
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Gaby Thai, MD 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.
Regents OF The University OF Claifornia Univ Neursciences
Orange, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Gaby Thai, MD. To verify Gaby Thai, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Gaby Thai, MD - brand share 13.0%
Neurology Physician average
13% brand-name claims vs 86% generic, on 1,994 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.
1,994
Total Claims
$2.2M
Total Drug Cost
272
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,171
- Total Day Supply
- 124,021
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $1.8M
- Generic Drug Cost
- $357K
- Opioid Claims
- 11 (0.6% rate)
Patient Demographics
- Average Patient Age
- 70.0 years
- Avg HCC Risk Score
- 1.62
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 64, 65-74: 101, 75-84: 81, 85+: 26
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gaby Thai, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
235 claims
- Donepezil Hcl
Donepezil Hcl
158 claims
- Levetiracetam
Levetiracetam
157 claims
- Baclofen
Baclofen
130 claims
- Memantine Hcl
Memantine Hcl
101 claims
- Pregabalin 63
Pregabalin
63 claims
- Dimethyl Fumarate 52
Dimethyl Fumarate
52 claims
- Memantine Hcl Er 49
Memantine Hcl Er
49 claims
| Drug | Claims |
|---|---|
| Gabapentin | 235 |
| Donepezil Hcl | 158 |
| Levetiracetam | 157 |
| Baclofen | 130 |
| Memantine Hcl | 101 |
| Pregabalin | 63 |
| Dimethyl Fumarate | 52 |
| Memantine Hcl Er Memantine Hcl | 49 |
| Dalfampridine Er Dalfampridine | 41 |
| Escitalopram Oxalate | 38 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Gaby Thai, MD fits within the Neurology Physician landscape nationally.
19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Gaby Thai, MD's 1,994 claims are above the specialty average of 1,309.
Nearby Neurology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Thai.
Dr. Venkat Raghav Aachi
MD
Thousand Oaks, CA
Dr. John Aalbers
M.D.
San Diego, CA
Dr. Puya Abbassi
D.O.
San Jose, CA
Dr. Ahmed Abdelhak
MB CHB
San Francisco, CA
Dr. Justin Abraham
M.D., M.B.A.
Santa Barbara, CA
Compare Neurology 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology 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 Gaby Thai, MD's specialty? ▼
Gaby Thai, MD specializes in Neurology Physician and practices in Orange, California. Credentials: MD.
How much does Gaby Thai, MD prescribe under Medicare Part D? ▼
In 2023, Gaby Thai, MD wrote 1,994 Medicare Part D claims totaling $2.2M in drug costs for 272 beneficiaries.
What is Gaby Thai, MD's Medicare quality score? ▼
Gaby Thai, MD has a CMS MIPS Final Score of 100/100 (Quality: 82.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Gaby Thai, MD located? ▼
Gaby Thai, MD is located at 101 THE CITY DR S, Orange, CA, 92868. Phone: (714) 456-5105.
What is Gaby Thai, MD's NPI number? ▼
Gaby Thai, MD's National Provider Identifier (NPI) is 1366547689, issued on 09/13/2006.
Does Gaby Thai, MD prescribe more brand-name or generic drugs? ▼
Gaby Thai, MD's prescribing is 13% brand-name and 86% generic drugs by claim count, with $1.8M in brand drug costs.
Does Gaby Thai, MD prescribe opioids? ▼
Yes, Gaby Thai, MD had 11 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Neurology Physician providers are there in the US? ▼
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Gaby Thai, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Gaby Thai, MD's most frequently prescribed drugs include Gabapentin, Donepezil Hcl, Levetiracetam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gaby Thai, MD accept Medicare? ▼
Gaby Thai, MD appears in CMS Medicare data with 1,994 Part D claims and 272 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gaby Thai, MD's credentials? ▼
Gaby Thai, MD's NPI is 1366547689 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 (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.