NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1326207648 M.D.
Verify on CMS → Luis Chug, M.D.
Critical Care Medicine (Internal Medicine) Physician in Houston, 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 6,916 in Critical Care Medicine (Internal Medicine) 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
1K
Medicare Part D claims · 165 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
0%
generic claims · 53% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.1K
58 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Luis Chug, M.D. filed 1,016 Medicare Part D claims in 2024 as a Critical Care Medicine (Internal Medicine) Physician in Houston, Texas, prescribing 0% generic.
- 1K
- Part D claims, 2024
- 0%
- generic prescribing
- $1.1K
- industry payments (Sunshine Act)
- ≥75th
- pct by Part D claim volume (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 Luis Chug, M.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 1326207648), first enumerated 06/02/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,016 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$1.1K in reported industry payments (58 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 Luis Chug, M.D.'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 1326207648 · Critical Care Medicine (Internal Medicine) Physician
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1326207648
- ENUM-MID 2008
- TAX-MID 7K Critical Care
- RX-MID 1,016
- BOOK-THIN 431 in Texas
- PHOTO-ENUM Jena Wirt, DO · 2008
Luis Chug, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,016 ≥ 75th percentile 75% 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-eligible specialty (heuristic, not verified)
Luis Chug, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Luis Chug, M.D.?
Quality data not reportedPrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
1,016 8% vs specialty avg
Specialty distribution in Texas
How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Critical Care Medicine (Internal Medicine) Physician. Verify directly:
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 | 1326207648 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/02/2008 |
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 Luis Chug, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.1K
Largest payer
AstraZeneca Pharmaceuticals LP
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 Luis Chug, M.D.. To verify Luis Chug, M.D.'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 · Brand-heavy
Luis Chug, M.D. - brand share 53.0%
Critical Care Medicine (Internal Medicine) Physician average
53% brand-name claims vs 0% generic, on 1,016 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.
1,016
Total Claims
$522K
Total Drug Cost
165
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,545.367
- Total Day Supply
- 43,849
- Brand vs Generic
- 53% brand / 0% generic
- Brand Drug Cost
- $506K
- Antibiotic Claims
- 42
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 2.62
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 19, 65-74: 81, 75-84: 49, 85+: 16
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Luis Chug, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Trelegy Ellipta
Trelegy Ellipta
230 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
98 claims
- Furosemide 82
Furosemide
82 claims
- Montelukast Sodium 82
Montelukast Sodium
82 claims
- Prednisone 59
Prednisone
59 claims
- Potassium Chloride 56
Potassium Chloride
56 claims
- Breo Ellipta 54
Breo Ellipta
54 claims
- Breztri Aerosphere 50
Breztri Aerosphere
50 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 230 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 98 |
| Furosemide | 82 |
| Montelukast Sodium | 82 |
| Prednisone | 59 |
| Potassium Chloride | 56 |
| Breo Ellipta Fluticasone/Vilanterol | 54 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 50 |
| Azithromycin | 38 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 34 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in TX →
All providers in Texas →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Luis Chug, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,916
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,103
Avg Claims per Provider
Luis Chug, M.D.'s 1,016 claims are below the specialty average of 1,103.
Nationwide Critical Care Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chug, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Chug.
One of 431 Critical Care Medicine (Internal Medicine) Physician providers enrolled in Texas, 5 are shown here.
Frequently Asked Questions
What is Luis Chug, M.D.'s specialty? ▼
Luis Chug, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Houston, Texas. Credentials: M.D..
How much does Luis Chug, M.D. prescribe under Medicare Part D? ▼
In 2024, Luis Chug, M.D. wrote 1,016 Medicare Part D claims totaling $522K in drug costs for 165 beneficiaries.
Where is Luis Chug, M.D. located? ▼
Luis Chug, M.D. is located at 1631 NORTH LOOP W STE 640, Houston, TX, 77008. Phone: (832) 263-1177.
What is Luis Chug, M.D.'s NPI number? ▼
Luis Chug, M.D.'s National Provider Identifier (NPI) is 1326207648, issued on 06/02/2008.
Does Luis Chug, M.D. prescribe more brand-name or generic drugs? ▼
Luis Chug, M.D.'s prescribing is 53% brand-name and 0% generic drugs by claim count, with $506K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,916 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,103 Medicare Part D claims per year.
What drugs does Luis Chug, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Luis Chug, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Luis Chug, M.D. accept Medicare? ▼
Luis Chug, M.D. appears in CMS Medicare data with 1,016 Part D claims and 165 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Luis Chug, M.D.'s credentials? ▼
Luis Chug, M.D.'s NPI is 1326207648 with credentials M.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.
- 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.