NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1881915254
Verify on CMS → Aaron Guess
Emergency Medicine Physician in Sugar Land, 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
641
Medicare Part D claims · 383 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
95%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$28.33
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Aaron Guess reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 641 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 641
- Part D claims, 2023
- 95%
- 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.
Aaron Guess's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 15th percentile higher than 15% 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 Aaron Guess sits
This provider among emergency medicine physician peers
Across the 14,967 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Aaron Guess writes more Part D claims than 95% of them and scores higher on MIPS quality than 9% - placing this provider in the high-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 emergency medicine physician peer from a representative sample of 60; the gold marker is Aaron Guess. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Aaron Guess practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Aaron Guess?
Below national averagePrimary specialty
Emergency Medicine Physician
Medicare Part D claims
641 82% vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in Texas
How Emergency Medicine Physician compares to other specialties among Texas providers
Medicare quality performance, MIPS
Aaron Guess's 2023 MIPS final score plotted against the Emergency Medicine Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Emergency Medicine Physician) - 75/100 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).
Aaron Guess appears in the CMS NPPES registry as an Emergency Medicine Physician provider at 16655 SOUTHWEST FWY, Sugar Land, TX, 77479, with a listed phone of (281) 274-7117. NPI 1881915254 was issued on 06/19/2010.
Medicare Part D records for calendar year 2023 show 641 prescription claims written by this provider, covering 383 Medicare beneficiaries and totaling roughly $10K in drug spend, split 2% brand-name and 95% generic by claim count, with an opioid prescribing rate of 15.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
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 | 1881915254 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Gender | Male |
| NPI Issued | 06/19/2010 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
Reporting: Group practice
Hospital and facility affiliations
Facilities where Aaron Guess 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.
Ies Central Texas PLLC
Anna, TX
Level One Emergency Physicians LLC
Denison, 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 Aaron Guess. Source: openpaymentsdata.cms.gov.
Total received
$28
Largest payer
Medtronic, 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.
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 Aaron Guess. To verify Aaron Guess'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 · Generic-heavy
Aaron Guess - brand share 2.0%
Emergency Medicine Physician average
2% brand-name claims vs 95% generic, on 641 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.
641
Total Claims
$10K
Total Drug Cost
383
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 648
- Total Day Supply
- 6,724
- Brand vs Generic
- 2% brand / 95% generic
- Brand Drug Cost
- $3K
- Generic Drug Cost
- $7K
- Opioid Claims
- 96 (15.0% rate)
- Antibiotic Claims
- 157
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 1.96
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 85, 65-74: 137, 75-84: 109, 85+: 52
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Aaron Guess prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ondansetron Odt
Ondansetron Odt
86 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
51 claims
- Tramadol Hcl
Tramadol Hcl
39 claims
- Levofloxacin
Levofloxacin
37 claims
- Methocarbamol
Methocarbamol
37 claims
- Cephalexin 34
Cephalexin
34 claims
- Doxycycline Hyclate 33
Doxycycline Hyclate
33 claims
- Meloxicam 31
Meloxicam
31 claims
| Drug | Claims |
|---|---|
| Ondansetron Odt Ondansetron | 86 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 51 |
| Tramadol Hcl | 39 |
| Levofloxacin | 37 |
| Methocarbamol | 37 |
| Cephalexin | 34 |
| Doxycycline Hyclate | 33 |
| Meloxicam | 31 |
| Clonidine Hcl | 29 |
| Ibuprofen | 19 |
* 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 Aaron Guess 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
Aaron Guess's 641 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 Guess.
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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
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Frequently Asked Questions
What is Aaron Guess's specialty? ▼
Aaron Guess specializes in Emergency Medicine Physician and practices in Sugar Land, Texas.
How much does Aaron Guess prescribe under Medicare Part D? ▼
In 2023, Aaron Guess wrote 641 Medicare Part D claims totaling $10K in drug costs for 383 beneficiaries.
What is Aaron Guess's Medicare quality score? ▼
Aaron Guess has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Aaron Guess located? ▼
Aaron Guess is located at 16655 SOUTHWEST FWY, Sugar Land, TX, 77479. Phone: (281) 274-7117.
What is Aaron Guess's NPI number? ▼
Aaron Guess's National Provider Identifier (NPI) is 1881915254, issued on 06/19/2010.
Does Aaron Guess prescribe more brand-name or generic drugs? ▼
Aaron Guess's prescribing is 2% brand-name and 95% generic drugs by claim count, with $3K in brand drug costs.
Does Aaron Guess prescribe opioids? ▼
Yes, Aaron Guess had 96 opioid claims in 2023 with an opioid prescribing rate of 15.0%.
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 Aaron Guess prescribe most often? ▼
Based on 2023 Medicare Part D data, Aaron Guess's most frequently prescribed drugs include Ondansetron Odt, Hydrocodone-Acetaminophen, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Aaron Guess accept Medicare? ▼
Aaron Guess appears in CMS Medicare data with 641 Part D claims and 383 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aaron Guess's credentials? ▼
Aaron Guess's NPI is 1881915254. 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
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.