2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1841234333 D.O.
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ANTHONY NGUYEN, D.O.

Geriatric Medicine (Internal Medicine) Physician in GARLAND, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
12K
Medicare Part D claims · 711 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$985.94
52 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ANTHONY NGUYEN, D.O. filed 11,743 Medicare Part D claims in 2023 as a Geriatric Medicine (Internal Medicine) Physician in GARLAND, Texas, prescribing 86% generic.

12K
Part D claims, 2023
86%
generic prescribing
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.

ANTHONY NGUYEN, D.O.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

11,743 Top 2% higher than 98% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

ANTHONY NGUYEN, D.O. 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 ANTHONY NGUYEN, D.O.?

Quality data not reported

NPI registry status

Active

Issued 06/15/2006

NPI 1841234333

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

11,743 164% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Texas

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Texas providers

Texas providers

Geriatric Medicine (Internal Medicine) Physician share within Texas

1. Geriatric Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Internal Medicine) Physician share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Geriatric Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

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).

ANTHONY NGUYEN, D.O. appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding D.O. credentials at 601 CLARA BARTON BLVD STE 145, GARLAND, TX, 75042, with a listed phone of (972) 560-9400. NPI 1841234333 was issued on 06/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NGUYEN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 11,743 prescription claims written by this provider, covering 711 Medicare beneficiaries and totaling roughly $2.1 million in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 2.9%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

601 CLARA BARTON BLVD STE 145
GARLAND, TX 75042

Provider Details

NPI 1841234333
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials D.O.
Gender Male
NPI Issued 06/15/2006

Hospital and facility affiliations

Facilities where ANTHONY NGUYEN, D.O. 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.

VMD PRIMARY PROVIDERS NORTH TEXAS PLLC
GARLAND, 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 ANTHONY NGUYEN, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$986

Largest payer

Otsuka America Pharmaceutical, 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 ANTHONY NGUYEN, D.O.. To verify ANTHONY NGUYEN, D.O.'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

ANTHONY NGUYEN, D.O. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 11,743 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.

11,743
Total Claims
$2.1M
Total Drug Cost
711
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
30,996
Total Day Supply
919,046
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$1.9M
Generic Drug Cost
$286K
Opioid Claims
340 (2.9% rate)
Antibiotic Claims
109

Patient Demographics

Average Patient Age
78.0 years
Avg HCC Risk Score
1.38
Gender Split
58% female / 42% male
Age Distribution
<65: 28, 65-74: 214, 75-84: 297, 85+: 172

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ANTHONY NGUYEN, D.O. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
1,033
Amlodipine Besylate
748
Losartan Potassium
584
Metformin Hcl
347
Levothyroxine Sodium
339
Lisinopril
301
Gabapentin
294
Metoprolol Succinate
275
Alendronate Sodium
265
Simvastatin
262

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Geriatric Medicine (Internal Medicine) Physician Overview

How ANTHONY NGUYEN, D.O. fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

ANTHONY NGUYEN, D.O.'s 11,743 claims are above the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as NGUYEN.

Compare Geriatric Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANTHONY NGUYEN, D.O.'s specialty?
ANTHONY NGUYEN, D.O. specializes in Geriatric Medicine (Internal Medicine) Physician and practices in GARLAND, Texas. Credentials: D.O..
How much does ANTHONY NGUYEN, D.O. prescribe under Medicare Part D?
In 2023, ANTHONY NGUYEN, D.O. wrote 11,743 Medicare Part D claims totaling $2.1M in drug costs for 711 beneficiaries.
Where is ANTHONY NGUYEN, D.O. located?
ANTHONY NGUYEN, D.O. is located at 601 CLARA BARTON BLVD STE 145, GARLAND, TX, 75042. Phone: (972) 560-9400.
What is ANTHONY NGUYEN, D.O.'s NPI number?
ANTHONY NGUYEN, D.O.'s National Provider Identifier (NPI) is 1841234333, issued on 06/15/2006.
Does ANTHONY NGUYEN, D.O. prescribe more brand-name or generic drugs?
ANTHONY NGUYEN, D.O.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $1.9M in brand drug costs.
Does ANTHONY NGUYEN, D.O. prescribe opioids?
Yes, ANTHONY NGUYEN, D.O. had 340 opioid claims in 2023 with an opioid prescribing rate of 2.9%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does ANTHONY NGUYEN, D.O. prescribe most often?
Based on 2023 Medicare Part D data, ANTHONY NGUYEN, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANTHONY NGUYEN, D.O. accept Medicare?
ANTHONY NGUYEN, D.O. appears in CMS Medicare data with 11,743 Part D claims and 711 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANTHONY NGUYEN, D.O.'s credentials?
ANTHONY NGUYEN, D.O.'s NPI is 1841234333 with credentials D.O.. 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

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