2026 NPPES data Nephrology Physician NPI 1932627874 DO
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LAWRENCE NGUYEN, DO

Nephrology Physician in ORANGE, California. 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
360
Medicare Part D claims · 75 beneficiaries · Nephrology Physician avg: 1K
Industry payments
$227.1
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

LAWRENCE NGUYEN, DO filed 360 Medicare Part D claims in 2023 as a Nephrology Physician in ORANGE, California.

360
Part D claims, 2023
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.

LAWRENCE NGUYEN, DO's Medicare Part D volume vs every U.S. prescriber

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

360 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

Board certification likely (heuristic — not verified)

LAWRENCE NGUYEN, DO 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 LAWRENCE NGUYEN, DO?

Quality data not reported

NPI registry status

Active

Issued 08/30/2017

NPI 1932627874

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

360 75% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in California

How Nephrology Physician compares to other specialties among California providers

California providers

Nephrology Physician share within California

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within California

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Nephrology 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).

LAWRENCE NGUYEN, DO appears in the CMS NPPES registry as a Nephrology Physician provider holding DO credentials at 101 THE CITY DR S, ORANGE, CA, 92868, with a listed phone of (714) 456-7890. NPI 1932627874 was issued on 08/30/2017. 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 360 prescription claims written by this provider, covering 75 Medicare beneficiaries and totaling roughly $90K 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

101 THE CITY DR S
ORANGE, CA 92868

Provider Details

NPI 1932627874
Specialty Nephrology Physician
Credentials DO
Gender Male
NPI Issued 08/30/2017

Hospital and facility affiliations

Facilities where LAWRENCE NGUYEN, DO 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.

DEPARTMENT OF STATE HOSPITALS
NORWALK, CA

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 LAWRENCE NGUYEN, DO. Source: openpaymentsdata.cms.gov.

Total received

$227

Largest payer

Novartis Pharmaceuticals Corporation

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 — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to LAWRENCE NGUYEN, DO. To verify LAWRENCE NGUYEN, DO's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

360
Total Claims
$90K
Total Drug Cost
75
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
745
Total Day Supply
21,802
Generic Drug Cost
$27K
Antibiotic Claims
15

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
4.34
Gender Split
39% female / 61% male

Top Prescribed Drugs (Medicare Part D)

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

What LAWRENCE NGUYEN, DO 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
Furosemide
35
Nifedipine Er
Nifedipine
22
Calcium Acetate
20
Amlodipine Besylate
17
Cyclosporine
17
Lisinopril
16
Hydrochlorothiazide
13
Allopurinol
12
Sevelamer Carbonate
11

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

Nephrology Physician Overview

How LAWRENCE NGUYEN, DO fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

LAWRENCE NGUYEN, DO's 360 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in California

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

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

Frequently Asked Questions

What is LAWRENCE NGUYEN, DO's specialty?
LAWRENCE NGUYEN, DO specializes in Nephrology Physician and practices in ORANGE, California. Credentials: DO.
How much does LAWRENCE NGUYEN, DO prescribe under Medicare Part D?
In 2023, LAWRENCE NGUYEN, DO wrote 360 Medicare Part D claims totaling $90K in drug costs for 75 beneficiaries.
Where is LAWRENCE NGUYEN, DO located?
LAWRENCE NGUYEN, DO is located at 101 THE CITY DR S, ORANGE, CA, 92868. Phone: (714) 456-7890.
What is LAWRENCE NGUYEN, DO's NPI number?
LAWRENCE NGUYEN, DO's National Provider Identifier (NPI) is 1932627874, issued on 08/30/2017.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does LAWRENCE NGUYEN, DO prescribe most often?
Based on 2023 Medicare Part D data, LAWRENCE NGUYEN, DO's most frequently prescribed drugs include Furosemide, Nifedipine Er, Calcium Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LAWRENCE NGUYEN, DO accept Medicare?
LAWRENCE NGUYEN, DO appears in CMS Medicare data with 360 Part D claims and 75 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LAWRENCE NGUYEN, DO's credentials?
LAWRENCE NGUYEN, DO's NPI is 1932627874 with credentials DO. 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