2026 NPPES data Emergency Medicine Physician NPI 1679506430 MD
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ALFREDO GUELER, MD

Emergency Medicine Physician in BELLAIRE, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 151 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$379.59
10 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ALFREDO GUELER, MD filed 2,504 Medicare Part D claims in 2023 as a Emergency Medicine Physician in BELLAIRE, Texas, prescribing 87% generic.

3K
Part D claims, 2023
87%
generic prescribing
$379.59
industry payments (Sunshine Act)

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.

ALFREDO GUELER, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

2,504 Top 13% higher than 87% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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-eligible specialty (heuristic — not verified)

ALFREDO GUELER, MD 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 ALFREDO GUELER, MD?

Quality data not reported

NPI registry status

Active

Issued 07/07/2006

NPI 1679506430

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

2,504 611% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Texas

How Emergency Medicine Physician compares to other specialties among Texas providers

Texas providers

Emergency Medicine Physician share within Texas

1. Emergency Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medicine Physician share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Emergency Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

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).

ALFREDO GUELER, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 5555 WEST LOOP S STE 635, BELLAIRE, TX, 77401, with a listed phone of (832) 778-6900. NPI 1679506430 was issued on 07/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUELER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 2,504 prescription claims written by this provider, covering 151 Medicare beneficiaries and totaling roughly $447K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.8%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 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

5555 WEST LOOP S STE 635
BELLAIRE, TX 77401

Provider Details

NPI 1679506430
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 07/07/2006

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 ALFREDO GUELER, MD. Source: openpaymentsdata.cms.gov.

Total received

$380

Largest payer

Esperion Therapeutics, 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 ALFREDO GUELER, MD. To verify ALFREDO GUELER, 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.

Brand vs generic prescribing mix · Typical

ALFREDO GUELER, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 2,504 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.

2,504
Total Claims
$447K
Total Drug Cost
151
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,877
Total Day Supply
172,845
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$392K
Generic Drug Cost
$54K
Opioid Claims
71 (2.8% rate)
Antibiotic Claims
57

Patient Demographics

Average Patient Age
72.0 years
Avg HCC Risk Score
1.24
Gender Split
52% female / 48% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ALFREDO GUELER, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
188
Rosuvastatin Calcium
109
Metoprolol Succinate
79
Gabapentin
73
Levothyroxine Sodium
72
Ezetimibe
68
Amlodipine Besylate
66
Tamsulosin Hcl
65
Losartan Potassium
60
Escitalopram Oxalate
54

* 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 ALFREDO GUELER, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

ALFREDO GUELER, MD's 2,504 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 GUELER.

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALFREDO GUELER, MD's specialty?
ALFREDO GUELER, MD specializes in Emergency Medicine Physician and practices in BELLAIRE, Texas. Credentials: MD.
How much does ALFREDO GUELER, MD prescribe under Medicare Part D?
In 2023, ALFREDO GUELER, MD wrote 2,504 Medicare Part D claims totaling $447K in drug costs for 151 beneficiaries.
Where is ALFREDO GUELER, MD located?
ALFREDO GUELER, MD is located at 5555 WEST LOOP S STE 635, BELLAIRE, TX, 77401. Phone: (832) 778-6900.
What is ALFREDO GUELER, MD's NPI number?
ALFREDO GUELER, MD's National Provider Identifier (NPI) is 1679506430, issued on 07/07/2006.
Does ALFREDO GUELER, MD prescribe more brand-name or generic drugs?
ALFREDO GUELER, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $392K in brand drug costs.
Does ALFREDO GUELER, MD prescribe opioids?
Yes, ALFREDO GUELER, MD had 71 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 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 ALFREDO GUELER, MD prescribe most often?
Based on 2023 Medicare Part D data, ALFREDO GUELER, MD's most frequently prescribed drugs include Atorvastatin Calcium, Rosuvastatin Calcium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALFREDO GUELER, MD accept Medicare?
ALFREDO GUELER, MD appears in CMS Medicare data with 2,504 Part D claims and 151 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALFREDO GUELER, MD's credentials?
ALFREDO GUELER, MD's NPI is 1679506430 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

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