NPI registry status
Active
2026 NPPES data Allergy Physician NPI 1669477568
Verify on CMS → David Engler
Allergy 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 1,019 in Allergy 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
548
Medicare Part D claims · 109 beneficiaries · Allergy Physician avg: 755
MIPS score
69.8/100
▼ 13 pts below national avg 83.1 · Mid-tier
Industry payments
$2.4K
96 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
David Engler reported a CMS MIPS final score of 69.8/100 - below the 83.1 national average - and filed 548 Medicare Part D claims in 2023.
- 69.8/100
- MIPS score · -13 vs avg
- 548
- 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.
David Engler's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
70 8th percentile higher than 8% 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 David Engler sits
This provider among allergy physician peers
Across the 175 allergy physician providers who report both Medicare Part D prescribing and a MIPS quality score, David Engler writes more Part D claims than 33% of them and scores higher on MIPS quality than 16% - placing this provider in the lower-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 allergy physician peer from a representative sample of 60; the gold marker is David Engler. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
David Engler 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 David Engler?
Below national averagePrimary specialty
Allergy Physician
Medicare Part D claims
548 27% vs specialty avg
MIPS final score
69.8/100 13.3 pts vs avg
Specialty distribution in Texas
How Allergy Physician compares to other specialties among Texas providers
Medicare quality performance, MIPS
David Engler's 2023 MIPS final score plotted against the Allergy Physician national average
- MIPS Final Score
- 69.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Allergy Physician) - 69.8/100 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).
David Engler appears in the CMS NPPES registry as a Allergy Physician provider at 7707 FANNIN ST STE 100, Houston, TX, 77054, with a listed phone of (713) 797-0993. NPI 1669477568 was issued on 06/16/2005.
Medicare Part D records for calendar year 2023 show 548 prescription claims written by this provider, covering 109 Medicare beneficiaries and totaling roughly $370K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 69.8/100 for the 2023 performance year (Quality 83, Cost 22.1), compared with the national average of 83.1.
Allergy Physician is a narrow specialty nationwide, with 1,019 enrolled providers across 49 states and an average of 755 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 | 1669477568 |
|---|---|
| Specialty | Allergy Physician |
| Gender | Male |
| NPI Issued | 06/16/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
69.8428
Final Score
Avg: 83.1
83.018
Quality
22.1186
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where David Engler 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.
Allergy Clinic LLP
Houston, 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).
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 David Engler. Source: openpaymentsdata.cms.gov.
Total received
$2.4K
Largest payer
BioCryst US Sales Co., LLC
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 David Engler. To verify David Engler'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.
548
Total Claims
$370K
Total Drug Cost
109
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 836
- Total Day Supply
- 22,765
- Generic Drug Cost
- $20K
- Antibiotic Claims
- 23
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 1.06
- Gender Split
- 71% female / 29% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Engler prescribes most
Top Medicare Part D drugs by claim count, 2023
- Epinephrine
Epinephrine
55 claims
- Montelukast Sodium
Montelukast Sodium
38 claims
- Azelastine Hcl
Azelastine Hcl
37 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
36 claims
- Spiriva Respimat
Spiriva Respimat
29 claims
- Fluticasone Propio…
Fluticasone Propionate
25 claims
- Ipratropium Bromide
Ipratropium Bromide
24 claims
- Trelegy Ellipta
Trelegy Ellipta
24 claims
| Drug | Claims |
|---|---|
| Epinephrine | 55 |
| Montelukast Sodium | 38 |
| Azelastine Hcl | 37 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 36 |
| Spiriva Respimat Tiotropium Bromide | 29 |
| Fluticasone Propionate | 25 |
| Ipratropium Bromide | 24 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 24 |
| Breo Ellipta Fluticasone/Vilanterol | 20 |
| Dupixent Syringe Dupilumab | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy Physician Overview
How David Engler fits within the Allergy Physician landscape nationally.
1,019
Allergy Physician Providers in US
49
States with Allergy Physician
755
Avg Claims per Provider
David Engler's 548 claims are below the specialty average of 755.
Nearby Allergy Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Engler.
Dr. Stuart Abramson
M.D.
San Angelo, TX
Dr. Sasha Alvarado
D.O.
Murphy, TX
Dr. Sheila Amar
M.D.
Georgetown, TX
Dr. Aneesh Angirekula
MD
Houston, TX
Dr. Pedro Avila
MD
Spring, TX
Compare Allergy 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 Allergy 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.
Healthcare Guides
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Medical Specialties Explained
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How insurance networks affect your costs
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Frequently Asked Questions
What is David Engler's specialty? ▼
David Engler specializes in Allergy Physician and practices in Houston, Texas.
How much does David Engler prescribe under Medicare Part D? ▼
In 2023, David Engler wrote 548 Medicare Part D claims totaling $370K in drug costs for 109 beneficiaries.
What is David Engler's Medicare quality score? ▼
David Engler has a CMS MIPS Final Score of 69.8/100 (Quality: 83, Cost: 22.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is David Engler located? ▼
David Engler is located at 7707 FANNIN ST STE 100, Houston, TX, 77054. Phone: (713) 797-0993.
What is David Engler's NPI number? ▼
David Engler's National Provider Identifier (NPI) is 1669477568, issued on 06/16/2005.
How many Allergy Physician providers are there in the US? ▼
There are 1,019 Allergy Physician providers across 49 states in the US. The average Allergy Physician provider writes 755 Medicare Part D claims per year.
What drugs does David Engler prescribe most often? ▼
Based on 2023 Medicare Part D data, David Engler's most frequently prescribed drugs include Epinephrine, Montelukast Sodium, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Engler accept Medicare? ▼
David Engler appears in CMS Medicare data with 548 Part D claims and 109 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Engler's credentials? ▼
David Engler's NPI is 1669477568. 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.