NPI registry status
Active
2026 NPPES data Inpatient Obstetric Registered Nurse NPI 1841841434 RN
Verify on CMS → Tho Nguyen, RN
Inpatient Obstetric Registered Nurse in Bay City, 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 578 in Inpatient Obstetric 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
2K
Medicare Part D claims · 226 beneficiaries · Inpatient Obstetric Registered Nurse avg: 705
Generic prescribing
81%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$183.68
9 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Tho Nguyen, RN filed 2,323 Medicare Part D claims in 2023 as an Inpatient Obstetric Registered Nurse in Bay City, Texas, prescribing 81% generic.
- 2K
- Part D claims, 2023
- 81%
- generic prescribing
- $183.68
- 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.
Tho Nguyen, RN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,323 Top 14% higher than 86% 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 Tho Nguyen, RN?
Quality data not reportedPrimary specialty
Inpatient Obstetric Registered Nurse
Medicare Part D claims
2,323 230% vs specialty avg
Specialty distribution in Texas
How Inpatient Obstetric 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 Inpatient Obstetric 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).
Tho Nguyen, RN appears in the CMS NPPES registry as an Inpatient Obstetric Registered Nurse provider holding RN credentials at 1700 GOLDEN AVE, Bay City, TX, 77414, with a listed phone of (979) 245-2008. NPI 1841841434 was issued on 09/25/2019.
Medicare Part D records for calendar year 2023 show 2,323 prescription claims written by this provider, covering 226 Medicare beneficiaries and totaling roughly $347K in drug spend, split 18% brand-name and 81% generic by claim count.
Inpatient Obstetric Registered Nurse is a narrow specialty nationwide, with 578 enrolled providers across 52 states and an average of 705 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 | 1841841434 |
|---|---|
| Specialty | Inpatient Obstetric Registered Nurse |
| Credentials | RN |
| Gender | Female |
| NPI Issued | 09/25/2019 |
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 Tho Nguyen, RN. Source: openpaymentsdata.cms.gov.
Total received
$184
Largest payer
Lilly USA, LLC
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 Tho Nguyen, RN. To verify Tho Nguyen, RN'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
Tho Nguyen, RN - brand share 18.0%
Inpatient Obstetric Registered Nurse average
18% brand-name claims vs 81% generic, on 2,323 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.
2,323
Total Claims
$347K
Total Drug Cost
226
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,734
- Total Day Supply
- 135,060
- Brand vs Generic
- 18% brand / 81% generic
- Brand Drug Cost
- $310K
- Generic Drug Cost
- $36K
- Antibiotic Claims
- 108
Patient Demographics
- Average Patient Age
- 69.5 years
- Avg HCC Risk Score
- 1.19
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 42, 65-74: 119, 75-84: 45, 85+: 20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Tho Nguyen, RN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
127 claims
- Amlodipine Besylate
Amlodipine Besylate
112 claims
- Atorvastatin Calcium
Atorvastatin Calcium
112 claims
- Levothyroxine Sodium
Levothyroxine Sodium
86 claims
- Losartan Potassium
Losartan Potassium
78 claims
- Lisinopril
Lisinopril
76 claims
- Metoprolol Succinate
Metoprolol Succinate
70 claims
- Furosemide 43
Furosemide
43 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 127 |
| Amlodipine Besylate | 112 |
| Atorvastatin Calcium | 112 |
| Levothyroxine Sodium | 86 |
| Losartan Potassium | 78 |
| Lisinopril | 76 |
| Metoprolol Succinate | 70 |
| Furosemide | 43 |
| Clonidine Hcl | 42 |
| Metformin Hcl Er Metformin Hcl | 42 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Inpatient Obstetric Registered Nurse Overview
How Tho Nguyen, RN fits within the Inpatient Obstetric Registered Nurse landscape nationally.
578
Inpatient Obstetric Registered Nurse Providers in US
52
States with Inpatient Obstetric Registered Nurse
705
Avg Claims per Provider
Tho Nguyen, RN's 2,323 claims are above the specialty average of 705.
Nearby Inpatient Obstetric Registered Nurse Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Nguyen.
Dr. Cynthia Biery
R.N.F.A.
Arlington, TX
Allyson Bivens
Celina, TX
Dr. Megan Brister
CNM
San Antonio, TX
Kristen Cernosek
Katy, TX
Dr. Priscilla Claudio
IBCLC
San Benito, TX
Compare Inpatient Obstetric 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 Inpatient Obstetric 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 Tho Nguyen, RN's specialty? ▼
Tho Nguyen, RN specializes in Inpatient Obstetric Registered Nurse and practices in Bay City, Texas. Credentials: RN.
How much does Tho Nguyen, RN prescribe under Medicare Part D? ▼
In 2023, Tho Nguyen, RN wrote 2,323 Medicare Part D claims totaling $347K in drug costs for 226 beneficiaries.
Where is Tho Nguyen, RN located? ▼
Tho Nguyen, RN is located at 1700 GOLDEN AVE, Bay City, TX, 77414. Phone: (979) 245-2008.
What is Tho Nguyen, RN's NPI number? ▼
Tho Nguyen, RN's National Provider Identifier (NPI) is 1841841434, issued on 09/25/2019.
Does Tho Nguyen, RN prescribe more brand-name or generic drugs? ▼
Tho Nguyen, RN's prescribing is 18% brand-name and 81% generic drugs by claim count, with $310K in brand drug costs.
How many Inpatient Obstetric Registered Nurse providers are there in the US? ▼
There are 578 Inpatient Obstetric Registered Nurse providers across 52 states in the US. The average Inpatient Obstetric Registered Nurse provider writes 705 Medicare Part D claims per year.
What drugs does Tho Nguyen, RN prescribe most often? ▼
Based on 2023 Medicare Part D data, Tho Nguyen, RN's most frequently prescribed drugs include Rosuvastatin Calcium, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tho Nguyen, RN accept Medicare? ▼
Tho Nguyen, RN appears in CMS Medicare data with 2,323 Part D claims and 226 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tho Nguyen, RN's credentials? ▼
Tho Nguyen, RN's NPI is 1841841434 with credentials RN. 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
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.