NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1417319054
Verify on CMS → Cindy Nguyen
Hospitalist Physician in Los Angeles, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,938 in Hospitalist Physician, 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
3K
Medicare Part D claims · 817 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
89%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Cindy Nguyen filed 3,202 Medicare Part D claims in 2023 as a Hospitalist Physician in Los Angeles, California, prescribing 89% generic.
- 3K
- Part D claims, 2023
- 89%
- 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.
Cindy Nguyen's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,202 Top 11% higher than 89% 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
✓
Board certification likely (heuristic, not verified)
Cindy Nguyen practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Cindy Nguyen?
Quality data not reportedPrimary specialty
Hospitalist Physician
Medicare Part D claims
3,202 261% vs specialty avg
Specialty distribution in California
How Hospitalist Physician compares to other specialties among California 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 Hospitalist Physician. 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).
Cindy Nguyen appears in the CMS NPPES registry as a Hospitalist Physician provider at 100 UCLA MEDICAL PLAZA SUITE 250, Los Angeles, CA, 90095, with a listed phone of (310) 794-9830. NPI 1417319054 was issued on 03/23/2016.
Medicare Part D records for calendar year 2023 show 3,202 prescription claims written by this provider, covering 817 Medicare beneficiaries and totaling roughly $318K in drug spend, split 10% brand-name and 89% generic by claim count, with an opioid prescribing rate of 1.7%.
Hospitalist Physician is a mid-sized specialty nationwide, with 16,938 enrolled providers across 54 states and an average of 888 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 | 1417319054 |
|---|---|
| Specialty | Hospitalist Physician |
| Gender | Female |
| NPI Issued | 03/23/2016 |
Hospital and facility affiliations
Facilities where Cindy Nguyen 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.
The Regents OF The University OF California
Los Angeles, CA
Venice Family Clinic
Santa Monica, 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).
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 Cindy Nguyen. To verify Cindy Nguyen'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.
Brand vs generic prescribing mix · Typical
Cindy Nguyen - brand share 10.0%
Hospitalist Physician average
10% brand-name claims vs 89% generic, on 3,202 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.
3,202
Total Claims
$318K
Total Drug Cost
817
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,993
- Total Day Supply
- 236,363
- Brand vs Generic
- 10% brand / 89% generic
- Brand Drug Cost
- $223K
- Generic Drug Cost
- $94K
- Opioid Claims
- 56 (1.7% rate)
- Antibiotic Claims
- 32
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 1.39
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 59, 65-74: 438, 75-84: 251, 85+: 69
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Cindy Nguyen prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
325 claims
- Amlodipine Besylate
Amlodipine Besylate
199 claims
- Levothyroxine Sodium
Levothyroxine Sodium
166 claims
- Losartan Potassium 129
Losartan Potassium
129 claims
- Lisinopril 90
Lisinopril
90 claims
- Rosuvastatin Calcium 89
Rosuvastatin Calcium
89 claims
- Metformin Hcl 71
Metformin Hcl
71 claims
- Omeprazole 71
Omeprazole
71 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 325 |
| Amlodipine Besylate | 199 |
| Levothyroxine Sodium | 166 |
| Losartan Potassium | 129 |
| Lisinopril | 90 |
| Rosuvastatin Calcium | 89 |
| Metformin Hcl | 71 |
| Omeprazole | 71 |
| Simvastatin | 65 |
| Hydrochlorothiazide | 61 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hospitalist Physician Overview
How Cindy Nguyen fits within the Hospitalist Physician landscape nationally.
16,938
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider
Cindy Nguyen's 3,202 claims are above the specialty average of 888.
Nearby Hospitalist Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Nguyen.
Dr. Zina Abbas
M.D.
Chula Vista, CA
Dr. Mehrdad Abbasi
MD
Rancho Mirage, CA
Dr. Abdul Abdali
M.D.
French Camp, CA
Dr. Anwar Abdelhadi
M.D.
Orange, CA
Dr. Farid Abdelmalak
M.D.
Santa Monica, CA
Compare Hospitalist Physician 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hospitalist Physician 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 Cindy Nguyen's specialty? ▼
Cindy Nguyen specializes in Hospitalist Physician and practices in Los Angeles, California.
How much does Cindy Nguyen prescribe under Medicare Part D? ▼
In 2023, Cindy Nguyen wrote 3,202 Medicare Part D claims totaling $318K in drug costs for 817 beneficiaries.
Where is Cindy Nguyen located? ▼
Cindy Nguyen is located at 100 UCLA MEDICAL PLAZA SUITE 250, Los Angeles, CA, 90095. Phone: (310) 794-9830.
What is Cindy Nguyen's NPI number? ▼
Cindy Nguyen's National Provider Identifier (NPI) is 1417319054, issued on 03/23/2016.
Does Cindy Nguyen prescribe more brand-name or generic drugs? ▼
Cindy Nguyen's prescribing is 10% brand-name and 89% generic drugs by claim count, with $223K in brand drug costs.
Does Cindy Nguyen prescribe opioids? ▼
Yes, Cindy Nguyen had 56 opioid claims in 2023 with an opioid prescribing rate of 1.7%.
How many Hospitalist Physician providers are there in the US? ▼
There are 16,938 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does Cindy Nguyen prescribe most often? ▼
Based on 2023 Medicare Part D data, Cindy Nguyen's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cindy Nguyen accept Medicare? ▼
Cindy Nguyen appears in CMS Medicare data with 3,202 Part D claims and 817 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cindy Nguyen's credentials? ▼
Cindy Nguyen's NPI is 1417319054. 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.