NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1184773780 MD
Verify on CMS → Stephen Pamatmat, MD
Nephrology Physician in Tyler, 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
723
Medicare Part D claims · 163 beneficiaries · Nephrology Physician avg: 1K
Industry payments
$567.44
8 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Stephen Pamatmat, MD filed 723 Medicare Part D claims in 2023 as a Nephrology Physician in Tyler, Texas.
- 723
- 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.
Stephen Pamatmat, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
723 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 certification likely (heuristic, not verified)
Stephen Pamatmat, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Stephen Pamatmat, MD?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
723 50% 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).
Stephen Pamatmat, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 1133 MEDICAL DR, Tyler, TX, 75701, with a listed phone of (903) 595-5486. NPI 1184773780 was issued on 01/10/2007.
Medicare Part D records for calendar year 2023 show 723 prescription claims written by this provider, covering 163 Medicare beneficiaries and totaling roughly $181K 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 | 1184773780 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 01/10/2007 |
Hospital and facility affiliations
Facilities where Stephen Pamatmat, 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.
Tyler Nephrology Associates PA
Tyler, 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 Stephen Pamatmat, MD. Source: openpaymentsdata.cms.gov.
Total received
$567
Largest payer
Travere 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 Stephen Pamatmat, MD. To verify Stephen Pamatmat, 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 2023.
723
Total Claims
$181K
Total Drug Cost
163
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,190
- Total Day Supply
- 34,031
- Generic Drug Cost
- $71K
- Antibiotic Claims
- 49
Patient Demographics
- Average Patient Age
- 66.3 years
- Avg HCC Risk Score
- 6.53
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 66, 65-74: 53, 75-84: 33, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Stephen Pamatmat, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sevelamer Carbonate
Sevelamer Carbonate
141 claims
- Amlodipine Besylate 56
Amlodipine Besylate
56 claims
- Pantoprazole Sodium 29
Pantoprazole Sodium
29 claims
- Ciprofloxacin Hcl 25
Ciprofloxacin Hcl
25 claims
- Midodrine Hcl 25
Midodrine Hcl
25 claims
- Velphoro 25
Velphoro
25 claims
- Potassium Chloride 24
Potassium Chloride
24 claims
- Lidocaine-Prilocaine 22
Lidocaine-Prilocaine
22 claims
| Drug | Claims |
|---|---|
| Sevelamer Carbonate | 141 |
| Amlodipine Besylate | 56 |
| Pantoprazole Sodium | 29 |
| Ciprofloxacin Hcl | 25 |
| Midodrine Hcl | 25 |
| Velphoro Sucroferric Oxyhydroxide | 25 |
| Potassium Chloride | 24 |
| Lidocaine-Prilocaine Lidocaine/Prilocaine | 22 |
| Nifedipine Er Nifedipine | 22 |
| Calcitriol | 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 Stephen Pamatmat, MD 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
Stephen Pamatmat, MD's 723 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 Pamatmat.
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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
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
Virtual care options and coverage in 2026
Explore Texas
Frequently Asked Questions
What is Stephen Pamatmat, MD's specialty? ▼
Stephen Pamatmat, MD specializes in Nephrology Physician and practices in Tyler, Texas. Credentials: MD.
How much does Stephen Pamatmat, MD prescribe under Medicare Part D? ▼
In 2023, Stephen Pamatmat, MD wrote 723 Medicare Part D claims totaling $181K in drug costs for 163 beneficiaries.
Where is Stephen Pamatmat, MD located? ▼
Stephen Pamatmat, MD is located at 1133 MEDICAL DR, Tyler, TX, 75701. Phone: (903) 595-5486.
What is Stephen Pamatmat, MD's NPI number? ▼
Stephen Pamatmat, MD's National Provider Identifier (NPI) is 1184773780, issued on 01/10/2007.
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 Stephen Pamatmat, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Stephen Pamatmat, MD's most frequently prescribed drugs include Sevelamer Carbonate, Amlodipine Besylate, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stephen Pamatmat, MD accept Medicare? ▼
Stephen Pamatmat, MD appears in CMS Medicare data with 723 Part D claims and 163 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephen Pamatmat, MD's credentials? ▼
Stephen Pamatmat, MD's NPI is 1184773780 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 (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.