2026 NPPES data Ophthalmology Physician NPI 1457556003 MD
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JOHN NGUYEN, MD

Ophthalmology Physician in MORGANTOWN, West Virginia. 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
562
Medicare Part D claims · 238 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.1061/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$40.0K
59 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JOHN NGUYEN, MD is a Ophthalmology Physician ([object Object]) practicing in MORGANTOWN, West Virginia with a Medicare Part D prescribing footprint of 562 claims across 238 beneficiaries — 19% brand-name prescribing . Their CMS MIPS Final Score of 94.1061/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $40.0K across 59 transactions are disclosed under CMS Open Payments (Sunshine Act).

What the federal data shows

JOHN NGUYEN, MD reported a CMS MIPS final score of 94.1061/100 — above the 83.1 national average — and filed 562 Medicare Part D claims in 2023.

94.1061/100
MIPS score · +11 vs avg
562
Part D claims, 2023
81%
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.

JOHN NGUYEN, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

94 Top 25% higher than 75% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

JOHN NGUYEN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JOHN NGUYEN, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 06/15/2007

NPI 1457556003

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

562 60% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

94.1061/100 11.006100000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in West Virginia

How Ophthalmology Physician compares to other specialties among West Virginia providers

West Virginia providers

Ophthalmology Physician share within West Virginia

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within West Virginia

Medicare quality performance — MIPS

JOHN NGUYEN, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
94.1061/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 94.1061/100 vs national avg 83.1

0%100%National avg83%94.1%
MIPS final score (Ophthalmology Physician) — 94.1061/100 vs national avg 83.1

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).

JOHN NGUYEN, MD is a Ophthalmology Physician provider practicing in MORGANTOWN, West Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1457556003. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JOHN NGUYEN, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 1 STADIUM DRIVE, MORGANTOWN, WV, 26506, with a listed phone of (304) 598-6925. NPI 1457556003 was issued on 06/15/2007. 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 562 prescription claims written by this provider, covering 238 Medicare beneficiaries and totaling roughly $1.6 million in drug spend, split 19% brand-name and 81% generic by claim count, with an opioid prescribing rate of 2.7%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.1061/100 for the 2023 performance year (Quality 78.4655), compared with the national average of 83.1.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

1 STADIUM DRIVE
MORGANTOWN, WV 26506

Provider Details

NPI 1457556003
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 06/15/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

94.1061
Final Score
Avg: 83.1
78.4655
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where JOHN NGUYEN, 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.

ST JOSEPH'S HOSPITAL OF BUCKHANNON INC
BUCKHANNON, WV
UNITED HOSPITAL CENTER INC
BRIDGEPORT, WV
WEST VIRGINIA UNIVERSITY MEDICAL CORPORATION
MORGANTOWN, WV

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 JOHN NGUYEN, MD. Source: openpaymentsdata.cms.gov.

Total received

$40.0K

Largest payer

Amgen 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.

Brand vs generic prescribing mix · Typical

JOHN NGUYEN, MD — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 562 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.

562
Total Claims
$1.6M
Total Drug Cost
238
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
572
Total Day Supply
7,765
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$1.6M
Generic Drug Cost
$6K
Opioid Claims
15 (2.7% rate)
Antibiotic Claims
126

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.34
Gender Split
63% female / 37% male
Age Distribution
<65: 23, 65-74: 115, 75-84: 71, 85+: 29

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Erythromycin
Erythromycin Base
229
Cephalexin
75
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
67
Clindamycin Hcl
27
Sodium Chloride
0.9 % Sodium Chloride
26
Tepezza
Teprotumumab-Trbw
24
Methylprednisolone
18
Doxycycline Hyclate
14
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
13

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

Ophthalmology Physician Overview

How JOHN NGUYEN, MD fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

JOHN NGUYEN, MD's 562 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in West Virginia

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

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN NGUYEN, MD's specialty?
JOHN NGUYEN, MD specializes in Ophthalmology Physician and practices in MORGANTOWN, West Virginia. Credentials: MD.
How much does JOHN NGUYEN, MD prescribe under Medicare Part D?
In 2023, JOHN NGUYEN, MD wrote 562 Medicare Part D claims totaling $1.6M in drug costs for 238 beneficiaries.
What is JOHN NGUYEN, MD's Medicare quality score?
JOHN NGUYEN, MD has a CMS MIPS Final Score of 94.1061/100 (Quality: 78.4655). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOHN NGUYEN, MD located?
JOHN NGUYEN, MD is located at 1 STADIUM DRIVE, MORGANTOWN, WV, 26506. Phone: (304) 598-6925.
What is JOHN NGUYEN, MD's NPI number?
JOHN NGUYEN, MD's National Provider Identifier (NPI) is 1457556003, issued on 06/15/2007.
Does JOHN NGUYEN, MD prescribe more brand-name or generic drugs?
JOHN NGUYEN, MD's prescribing is 19% brand-name and 81% generic drugs by claim count, with $1.6M in brand drug costs.
Does JOHN NGUYEN, MD prescribe opioids?
Yes, JOHN NGUYEN, MD had 15 opioid claims in 2023 with an opioid prescribing rate of 2.7%.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does JOHN NGUYEN, MD prescribe most often?
Based on 2023 Medicare Part D data, JOHN NGUYEN, MD's most frequently prescribed drugs include Erythromycin, Cephalexin, Neomycin-Polymyxin-Dexameth. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN NGUYEN, MD accept Medicare?
JOHN NGUYEN, MD appears in CMS Medicare data with 562 Part D claims and 238 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN NGUYEN, MD's credentials?
JOHN NGUYEN, MD's NPI is 1457556003 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

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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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