NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1386840197 MD
Verify on CMS → Horacio Hau, MD
Emergency Medicine Physician in Corpus Christi, 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 64,463 in Emergency 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
3K
Medicare Part D claims · 123 beneficiaries · Emergency Medicine Physician avg: 352
What the federal data shows
Horacio Hau, MD filed 2,591 Medicare Part D claims in 2023 as an Emergency Medicine Physician in Corpus Christi, Texas.
- 3K
- Part D claims, 2023
- 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.
Horacio Hau, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,591 Top 13% higher than 87% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Horacio Hau, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Horacio Hau, MD?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
2,591 7× vs specialty avg
Specialty distribution in Texas
How Emergency 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 Emergency 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).
Horacio Hau, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 6629 WOOLDRIDGE RD, Corpus Christi, TX, 78414, with a listed phone of (361) 673-3613. NPI 1386840197 was issued on 06/27/2007.
Medicare Part D records for calendar year 2023 show 2,591 prescription claims written by this provider, covering 123 Medicare beneficiaries and totaling roughly $460K in drug spend, with an opioid prescribing rate of 0.6%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1386840197 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/27/2007 |
Hospital and facility affiliations
Facilities where Horacio Hau, 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.
Hospital Medicine Services OF TX, PLLC
San Antonio, TX
Usacs Integrated Acute Care Services OF Texas, PLLC
Kerrville, TX
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 - 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 Horacio Hau, MD. To verify Horacio Hau, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
2,591
Total Claims
$460K
Total Drug Cost
123
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,662
- Total Day Supply
- 64,376
- Generic Drug Cost
- $200K
- Opioid Claims
- 16 (0.6% rate)
- Antibiotic Claims
- 77
Patient Demographics
- Average Patient Age
- 66.6 years
- Avg HCC Risk Score
- 2.65
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 44, 65-74: 50, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Horacio Hau, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Esomeprazole Magne…
Esomeprazole Magnesium
260 claims
- Alendronate Sodium
Alendronate Sodium
247 claims
- Lacosamide
Lacosamide
222 claims
- Levothyroxine Sodium
Levothyroxine Sodium
129 claims
- Levetiracetam
Levetiracetam
124 claims
- Atorvastatin Calcium
Atorvastatin Calcium
123 claims
- Lamotrigine
Lamotrigine
116 claims
- Lactulose 98
Lactulose
98 claims
| Drug | Claims |
|---|---|
| Esomeprazole Magnesium | 260 |
| Alendronate Sodium | 247 |
| Lacosamide | 222 |
| Levothyroxine Sodium | 129 |
| Levetiracetam | 124 |
| Atorvastatin Calcium | 123 |
| Lamotrigine | 116 |
| Lactulose | 98 |
| Zonisamide | 74 |
| Simvastatin | 57 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Horacio Hau, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Horacio Hau, MD's 2,591 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Hau.
Dr. Gordon Aalund
MD
Dallas, TX
Dr. George Abatso
MD
Arlington, TX
Dr. Lailah Abawi
D.O.
Frisco, TX
Dr. Sulaiman Abawi
D.O.
Frisco, TX
Tazeen Abbas
College Station, TX
Compare Emergency Medicine 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 Texas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine 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 Horacio Hau, MD's specialty? ▼
Horacio Hau, MD specializes in Emergency Medicine Physician and practices in Corpus Christi, Texas. Credentials: MD.
How much does Horacio Hau, MD prescribe under Medicare Part D? ▼
In 2023, Horacio Hau, MD wrote 2,591 Medicare Part D claims totaling $460K in drug costs for 123 beneficiaries.
Where is Horacio Hau, MD located? ▼
Horacio Hau, MD is located at 6629 WOOLDRIDGE RD, Corpus Christi, TX, 78414. Phone: (361) 673-3613.
What is Horacio Hau, MD's NPI number? ▼
Horacio Hau, MD's National Provider Identifier (NPI) is 1386840197, issued on 06/27/2007.
Does Horacio Hau, MD prescribe opioids? ▼
Yes, Horacio Hau, MD had 16 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Horacio Hau, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Horacio Hau, MD's most frequently prescribed drugs include Esomeprazole Magnesium, Alendronate Sodium, Lacosamide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Horacio Hau, MD accept Medicare? ▼
Horacio Hau, MD appears in CMS Medicare data with 2,591 Part D claims and 123 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Horacio Hau, MD's credentials? ▼
Horacio Hau, MD's NPI is 1386840197 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.
- 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
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 May 2026.