NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1841281177 MD
Verify on CMS → Mario Ruiz, MD
Nephrology Physician in Denton, 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 10,806 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
778
Medicare Part D claims · 294 beneficiaries · Nephrology Physician avg: 2K
What the federal data shows
Mario Ruiz, MD filed 778 Medicare Part D claims in 2024 as a Nephrology Physician in Denton, Texas.
- 778
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥70th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Mario Ruiz, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1841281177), first enumerated 11/04/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 778 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
5 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Mario Ruiz, MD's individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Ruiz with other Nephrology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Texas
- Dr. Bernardino Abaya, M.D. Houston, TX
- Dr. Aisha Abbasi, MD Conroe, TX
- Dr. Mohammed Abdulaziz, MD Laredo, TX
- Dr. Mai Abouelsaad, M.D. Houston, TX
- Dr. Fadi Abouzahr, MD San Antonio, TX
- Dr. Koshy Abraham, MD Fort Worth, TX
Other specialties in Denton: Behavior Technician (234) · Professional Counselor (217) · Family Nurse Practitioner (135) · Physical Therapist (121)
CMS NPPES provider registry desk
NPI 1841281177 · Nephrology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1841281177
- ENUM-LEGACY 2005
- TAX-MID 11K Nephrology Physician
- RX-LIGHT 778
- BOOK-LIGHT 896 in Texas
- PHOTO-ENUM Wasim Ahmed, MD · 2005
Mario Ruiz, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
778 ≥ 70th percentile 70% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Mario Ruiz, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 5 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 Mario Ruiz, MD?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
778 49% 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).
Practice Address
Provider Details
| NPI | 1841281177 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/04/2005 |
Hospital and facility affiliations
Facilities where Mario Ruiz, 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.
According to CMS billing records, Mario Ruiz, MD is affiliated with 5 Medicare-billing facilities across 5 states.
Emerus Inpatient Providers SC
Menomonee Falls, WI
Emerus Nevada Inpatient Providers PLLC
North Las Vegas, NV
Emerus Oklahoma Hospitalists PLLC
Oklahoma City, OK
Emerus Pennsylvania Inpatient Providers PLLC
West Grove, PA
Leading Edge Emergency Physicians, Inc
San Antonio, 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 Mario Ruiz, MD. To verify Mario Ruiz, 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 2024.
778
Total Claims
$33K
Total Drug Cost
294
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 876.6
- Total Day Supply
- 15,579
- Generic Drug Cost
- $8K
- Opioid Claims
- 13 (1.7% rate)
- Antibiotic Claims
- 264
Patient Demographics
- Average Patient Age
- 73.3 years
- Avg HCC Risk Score
- 1.84
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 49, 65-74: 101, 75-84: 102, 85+: 42
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mario Ruiz, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Cefuroxime
Cefuroxime
71 claims
- Azithromycin
Azithromycin
69 claims
- Prednisone
Prednisone
66 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
40 claims
- Pantoprazole Sodium
Pantoprazole Sodium
40 claims
- Metoprolol Succinate
Metoprolol Succinate
36 claims
- Doxycycline Hyclate 26
Doxycycline Hyclate
26 claims
- Furosemide 20
Furosemide
20 claims
| Drug | Claims |
|---|---|
| Cefuroxime Cefuroxime Axetil | 71 |
| Azithromycin | 69 |
| Prednisone | 66 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 40 |
| Pantoprazole Sodium | 40 |
| Metoprolol Succinate | 36 |
| Doxycycline Hyclate | 26 |
| Furosemide | 20 |
| Cefpodoxime Proxetil | 17 |
| Levofloxacin | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Mario Ruiz, MD fits within the Nephrology Physician landscape nationally.
10,806
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,511
Avg Claims per Provider
Mario Ruiz, MD's 778 claims are below the specialty average of 1,511.
Nationwide Nephrology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ruiz, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nephrology Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Ruiz.
One of 896 Nephrology Physician providers enrolled in Texas, 11 are shown on this page.
Dr. Ala Abudayyeh
MD
Houston, TX
Vinay Acharya
McKinney, TX
Dr. Katafan Achkar
MD
Webster, TX
Dr. Sailaja Adari
MD
Dallas, TX
Dr. Horacio Adrogue
MD
Houston, TX
Compare Nephrology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mario Ruiz, MD's specialty? ▼
Mario Ruiz, MD specializes in Nephrology Physician and practices in Denton, Texas. Credentials: MD.
How much does Mario Ruiz, MD prescribe under Medicare Part D? ▼
In 2024, Mario Ruiz, MD wrote 778 Medicare Part D claims totaling $33K in drug costs for 294 beneficiaries.
Where is Mario Ruiz, MD located? ▼
Mario Ruiz, MD is located at 3315 COLORADO BLVD, Denton, TX, 76210. Phone: (940) 320-1708.
What is Mario Ruiz, MD's NPI number? ▼
Mario Ruiz, MD's National Provider Identifier (NPI) is 1841281177, issued on 11/04/2005.
Does Mario Ruiz, MD prescribe opioids? ▼
Yes, Mario Ruiz, MD had 13 opioid claims in 2024 with an opioid prescribing rate of 1.7%.
How many Nephrology Physician providers are there in the US? ▼
There are 10,806 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,511 Medicare Part D claims per year.
What drugs does Mario Ruiz, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Mario Ruiz, MD's most frequently prescribed drugs include Cefuroxime, Azithromycin, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mario Ruiz, MD accept Medicare? ▼
Mario Ruiz, MD appears in CMS Medicare data with 778 Part D claims and 294 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mario Ruiz, MD's credentials? ▼
Mario Ruiz, MD's NPI is 1841281177 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.