NPI registry status
Active
2026 NPPES data Wound Care Registered Nurse NPI 1740404862 NP
Verify on CMS → Thelma Diaz, NP
Wound Care Registered Nurse in El Paso, 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 605 in Wound Care Registered Nurse, 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
133
Medicare Part D claims · 82 beneficiaries · Wound Care Registered Nurse avg: 1K
Generic prescribing
47%
generic claims · 53% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$491.64
20 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Thelma Diaz, NP filed 133 Medicare Part D claims in 2023 as a Wound Care Registered Nurse in El Paso, Texas, prescribing 47% generic.
- 133
- Part D claims, 2023
- 47%
- generic prescribing
- $491.64
- 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.
Thelma Diaz, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
133 35th percentile higher than 35% 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
What does the federal data show about Thelma Diaz, NP?
Quality data not reportedPrimary specialty
Wound Care Registered Nurse
Medicare Part D claims
133 88% vs specialty avg
Specialty distribution in Texas
How Wound Care Registered Nurse 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 Wound Care Registered Nurse. 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).
Thelma Diaz, NP appears in the CMS NPPES registry as a Wound Care Registered Nurse provider holding NP credentials at 1626 MEDICAL CENTER DR STE 400, El Paso, TX, 79902, with a listed phone of (915) 546-9200. NPI 1740404862 was issued on 04/12/2007.
Medicare Part D records for calendar year 2023 show 133 prescription claims written by this provider, covering 82 Medicare beneficiaries and totaling roughly $8K in drug spend, split 53% brand-name and 47% generic by claim count.
Wound Care Registered Nurse is a narrow specialty nationwide, with 605 enrolled providers across 54 states and an average of 1,085 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 | 1740404862 |
|---|---|
| Specialty | Wound Care Registered Nurse |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 04/12/2007 |
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 Thelma Diaz, NP. Source: openpaymentsdata.cms.gov.
Total received
$492
Largest payer
Smith+Nephew, 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 Thelma Diaz, NP. To verify Thelma Diaz, NP'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 · Brand-heavy
Thelma Diaz, NP - brand share 53.0%
Wound Care Registered Nurse average
53% brand-name claims vs 47% generic, on 133 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.
133
Total Claims
$8K
Total Drug Cost
82
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 149
- Total Day Supply
- 3,339
- Brand vs Generic
- 53% brand / 47% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $2K
- Antibiotic Claims
- 35
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 3.97
- Gender Split
- 40% female / 60% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Thelma Diaz, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ssd
Ssd
37 claims
- Silver Sulfadiazine
Silver Sulfadiazine
22 claims
- Santyl 12
Santyl
12 claims
- Ciprofloxacin Hcl 11
Ciprofloxacin Hcl
11 claims
- Doxycycline Hyclate 11
Doxycycline Hyclate
11 claims
- Fluocinonide 11
Fluocinonide
11 claims
| Drug | Claims |
|---|---|
| Ssd Silver Sulfadiazine | 37 |
| Silver Sulfadiazine | 22 |
| Santyl Collagenase Clostridium Hist. | 12 |
| Ciprofloxacin Hcl | 11 |
| Doxycycline Hyclate | 11 |
| Fluocinonide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Wound Care Registered Nurse Overview
How Thelma Diaz, NP fits within the Wound Care Registered Nurse landscape nationally.
605
Wound Care Registered Nurse Providers in US
54
States with Wound Care Registered Nurse
1,085
Avg Claims per Provider
Thelma Diaz, NP's 133 claims are below the specialty average of 1,085.
Nearby Wound Care Registered Nurse Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Diaz.
Dr. Florence Alao
PMHNP
Conroe, TX
Dr. Joni Barone
RN
Lindale, TX
Brenda Brown
Kyle, TX
Dr. Natasha Bubeck
MSN, FNP-BC
Arlington, TX
Clay Collins
Wichita Falls, TX
Compare Wound Care Registered Nurse 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 Wound Care Registered Nurse 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 Thelma Diaz, NP's specialty? ▼
Thelma Diaz, NP specializes in Wound Care Registered Nurse and practices in El Paso, Texas. Credentials: NP.
How much does Thelma Diaz, NP prescribe under Medicare Part D? ▼
In 2023, Thelma Diaz, NP wrote 133 Medicare Part D claims totaling $8K in drug costs for 82 beneficiaries.
Where is Thelma Diaz, NP located? ▼
Thelma Diaz, NP is located at 1626 MEDICAL CENTER DR STE 400, El Paso, TX, 79902. Phone: (915) 546-9200.
What is Thelma Diaz, NP's NPI number? ▼
Thelma Diaz, NP's National Provider Identifier (NPI) is 1740404862, issued on 04/12/2007.
Does Thelma Diaz, NP prescribe more brand-name or generic drugs? ▼
Thelma Diaz, NP's prescribing is 53% brand-name and 47% generic drugs by claim count, with $6K in brand drug costs.
How many Wound Care Registered Nurse providers are there in the US? ▼
There are 605 Wound Care Registered Nurse providers across 54 states in the US. The average Wound Care Registered Nurse provider writes 1,085 Medicare Part D claims per year.
What drugs does Thelma Diaz, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Thelma Diaz, NP's most frequently prescribed drugs include Ssd, Silver Sulfadiazine, Santyl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thelma Diaz, NP accept Medicare? ▼
Thelma Diaz, NP appears in CMS Medicare data with 133 Part D claims and 82 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thelma Diaz, NP's credentials? ▼
Thelma Diaz, NP's NPI is 1740404862 with credentials NP. 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.