2026 NPPES data Physician Assistant NPI 1477088607 PA
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ANDREW NGUYEN, PA

Physician Assistant in OKLAHOMA CITY, Oklahoma. 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
338
Medicare Part D claims · 203 beneficiaries · Physician Assistant avg: 790

What the federal data shows

ANDREW NGUYEN, PA filed 338 Medicare Part D claims in 2023 as a Physician Assistant in OKLAHOMA CITY, Oklahoma.

338
Part D claims, 2023

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.

ANDREW NGUYEN, PA's Medicare Part D volume vs every U.S. prescriber

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

338 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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

What does the federal data show about ANDREW NGUYEN, PA?

Quality data not reported

NPI registry status

Active

Issued 04/25/2017

NPI 1477088607

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

338 57% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Oklahoma

How Physician Assistant compares to other specialties among Oklahoma providers

Oklahoma providers

Physician Assistant share within Oklahoma

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Oklahoma

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — 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).

ANDREW NGUYEN, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 3617 NW EXPRESSWAY, OKLAHOMA CITY, OK, 73112, with a listed phone of (405) 835-2771. NPI 1477088607 was issued on 04/25/2017. 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 338 prescription claims written by this provider, covering 203 Medicare beneficiaries and totaling roughly $4K in drug spend. 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

3617 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112

Provider Details

NPI 1477088607
Specialty Physician Assistant
Credentials PA
Gender Male
NPI Issued 04/25/2017

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

338
Total Claims
$4K
Total Drug Cost
203
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
338
Total Day Supply
2,967
Generic Drug Cost
$4K
Antibiotic Claims
154

Patient Demographics

Average Patient Age
68.8 years
Avg HCC Risk Score
1.16
Gender Split
75% female / 25% male
Age Distribution
<65: 48, 65-74: 86, 75-84: 57, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

What ANDREW NGUYEN, PA 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
Methylprednisolone
68
Doxycycline Hyclate
58
Prednisone
35
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
32
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
29

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

Physician Assistant Overview

How ANDREW NGUYEN, PA fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

ANDREW NGUYEN, PA's 338 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Oklahoma

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

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

Frequently Asked Questions

What is ANDREW NGUYEN, PA's specialty?
ANDREW NGUYEN, PA specializes in Physician Assistant and practices in OKLAHOMA CITY, Oklahoma. Credentials: PA.
How much does ANDREW NGUYEN, PA prescribe under Medicare Part D?
In 2023, ANDREW NGUYEN, PA wrote 338 Medicare Part D claims totaling $4K in drug costs for 203 beneficiaries.
Where is ANDREW NGUYEN, PA located?
ANDREW NGUYEN, PA is located at 3617 NW EXPRESSWAY, OKLAHOMA CITY, OK, 73112. Phone: (405) 835-2771.
What is ANDREW NGUYEN, PA's NPI number?
ANDREW NGUYEN, PA's National Provider Identifier (NPI) is 1477088607, issued on 04/25/2017.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does ANDREW NGUYEN, PA prescribe most often?
Based on 2023 Medicare Part D data, ANDREW NGUYEN, PA's most frequently prescribed drugs include Methylprednisolone, Doxycycline Hyclate, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANDREW NGUYEN, PA accept Medicare?
ANDREW NGUYEN, PA appears in CMS Medicare data with 338 Part D claims and 203 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANDREW NGUYEN, PA's credentials?
ANDREW NGUYEN, PA's NPI is 1477088607 with credentials PA. 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