NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1982609111 MD FACP FASN
Verify on CMS → Rafael Esquenazi, MD FACP FASN
Nephrology 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 10,569 in Nephrology 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
700
Medicare Part D claims · 131 beneficiaries · Nephrology Physician avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Rafael Esquenazi, MD FACP FASN filed 700 Medicare Part D claims in 2023 as a Nephrology Physician in Houston, Texas.
- 700
- Part D claims, 2023
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.
Rafael Esquenazi, MD FACP FASN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
700 Top 29% higher than 71% 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-eligible specialty (heuristic, not verified)
Rafael Esquenazi, MD FACP FASN 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 Rafael Esquenazi, MD FACP FASN?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
700 52% vs specialty avg
Specialty distribution in Texas
How Nephrology 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 Nephrology 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).
Rafael Esquenazi, MD FACP FASN appears in the CMS NPPES registry as a Nephrology Physician provider holding MD FACP FASN credentials at 1140 WESTMONT DR, Houston, TX, 77015, with a listed phone of (713) 637-6320. NPI 1982609111 was issued on 06/15/2005.
Medicare Part D records for calendar year 2023 show 700 prescription claims written by this provider, covering 131 Medicare beneficiaries and totaling roughly $257K in drug spend.
Nephrology Physician is a mid-sized specialty nationwide, with 10,569 enrolled providers across 55 states and an average of 1,454 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 | 1982609111 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD FACP FASN |
| Gender | Male |
| NPI Issued | 06/15/2005 |
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 Rafael Esquenazi, MD FACP FASN. To verify Rafael Esquenazi, MD FACP FASN'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.
700
Total Claims
$257K
Total Drug Cost
131
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,294
- Total Day Supply
- 37,901
- Generic Drug Cost
- $69K
Patient Demographics
- Average Patient Age
- 63.7 years
- Avg HCC Risk Score
- 8.17
- Gender Split
- 43% female / 57% male
- Age Distribution
- <65: 66, 65-74: 45, 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 Rafael Esquenazi, MD FACP FASN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sevelamer Carbonate
Sevelamer Carbonate
109 claims
- Calcium Acetate
Calcium Acetate
56 claims
- Nifedipine Er
Nifedipine Er
45 claims
- Gabapentin 40
Gabapentin
40 claims
- Furosemide 33
Furosemide
33 claims
- Veltassa 32
Veltassa
32 claims
- Carvedilol 30
Carvedilol
30 claims
- Velphoro 26
Velphoro
26 claims
| Drug | Claims |
|---|---|
| Sevelamer Carbonate | 109 |
| Calcium Acetate | 56 |
| Nifedipine Er Nifedipine | 45 |
| Gabapentin | 40 |
| Furosemide | 33 |
| Veltassa Patiromer Calcium Sorbitex | 32 |
| Carvedilol | 30 |
| Velphoro Sucroferric Oxyhydroxide | 26 |
| Atorvastatin Calcium | 22 |
| Midodrine Hcl | 21 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Rafael Esquenazi, MD FACP FASN fits within the Nephrology Physician landscape nationally.
10,569
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Rafael Esquenazi, MD FACP FASN's 700 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Esquenazi.
Dr. Bernardino Abaya
M.D.
Houston, TX
Dr. Aisha Abbasi
MD
Conroe, TX
Dr. Fadi Abouzahr
MD
San Antonio, TX
Dr. Koshy Abraham
MD
Fort Worth, TX
Dr. Ala Abudayyeh
MD
Houston, TX
Compare Nephrology 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 Nephrology 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 Rafael Esquenazi, MD FACP FASN's specialty? ▼
Rafael Esquenazi, MD FACP FASN specializes in Nephrology Physician and practices in Houston, Texas. Credentials: MD FACP FASN.
How much does Rafael Esquenazi, MD FACP FASN prescribe under Medicare Part D? ▼
In 2023, Rafael Esquenazi, MD FACP FASN wrote 700 Medicare Part D claims totaling $257K in drug costs for 131 beneficiaries.
Where is Rafael Esquenazi, MD FACP FASN located? ▼
Rafael Esquenazi, MD FACP FASN is located at 1140 WESTMONT DR, Houston, TX, 77015. Phone: (713) 637-6320.
What is Rafael Esquenazi, MD FACP FASN's NPI number? ▼
Rafael Esquenazi, MD FACP FASN's National Provider Identifier (NPI) is 1982609111, issued on 06/15/2005.
How many Nephrology Physician providers are there in the US? ▼
There are 10,569 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Rafael Esquenazi, MD FACP FASN prescribe most often? ▼
Based on 2023 Medicare Part D data, Rafael Esquenazi, MD FACP FASN's most frequently prescribed drugs include Sevelamer Carbonate, Calcium Acetate, Nifedipine Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rafael Esquenazi, MD FACP FASN accept Medicare? ▼
Rafael Esquenazi, MD FACP FASN appears in CMS Medicare data with 700 Part D claims and 131 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rafael Esquenazi, MD FACP FASN's credentials? ▼
Rafael Esquenazi, MD FACP FASN's NPI is 1982609111 with credentials MD FACP FASN. 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
Compiled from official public sources by the PlainDoctor editorial team.
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.