2026 NPPES data Neurology Physician NPI 1922102029 MD PHD
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YUCHENG LIAO, MD PHD

Neurology Physician in OXNARD, 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
3K
Medicare Part D claims · 434 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · [object Object]
Industry payments
$2.0K
86 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

YUCHENG LIAO, MD PHD reported a CMS MIPS final score of 0/100 — below the 83.1 national average — and filed 2,544 Medicare Part D claims in 2023.

0/100
MIPS score · -83 vs avg
3K
Part D claims, 2023
88%
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.

YUCHENG LIAO, MD PHD's MIPS score vs every scored U.S. clinician

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

0 0th percentile higher than 0% of 477,587 scored providers

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

YUCHENG LIAO, MD PHD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 YUCHENG LIAO, MD PHD?

Below national average

NPI registry status

Active

Issued 09/11/2006

NPI 1922102029

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

2,544 94% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

0/100 83.1% pts

Penalty band band

vs 83.1 national avg

Specialty distribution in California

How Neurology Physician compares to other specialties among California providers

California providers

Neurology Physician share within California

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

Medicare quality performance — MIPS

YUCHENG LIAO, MD PHD's 2023 MIPS final score plotted against the Neurology Physician national average

Below national average
MIPS Final Score
0/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 0/100 vs national avg 83.1

0%100%National avg83%0%
MIPS final score (Neurology Physician) — 0/100 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).

YUCHENG LIAO, MD PHD appears in the CMS NPPES registry as a Neurology Physician provider holding MD PHD credentials at 1700 N ROSE AVE, OXNARD, CA, 93030, with a listed phone of (805) 983-6929. NPI 1922102029 was issued on 09/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LIAO 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 2,544 prescription claims written by this provider, covering 434 Medicare beneficiaries and totaling roughly $1.3 million in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.5%. 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 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

1700 N ROSE AVE
OXNARD, CA 93030

Provider Details

NPI 1922102029
Specialty Neurology Physician
Credentials MD PHD
Gender Male
NPI Issued 09/11/2006

CMS Quality Score (MIPS)

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

0
Final Score
Avg: 83.1
0
Quality

Reporting: Individual

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 YUCHENG LIAO, MD PHD. Source: openpaymentsdata.cms.gov.

Total received

$2.0K

Largest payer

ABBVIE 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 — 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 YUCHENG LIAO, MD PHD. To verify YUCHENG LIAO, MD PHD'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

YUCHENG LIAO, MD PHD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 2,544 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.

2,544
Total Claims
$1.3M
Total Drug Cost
434
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,402
Total Day Supply
129,745
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$1.0M
Generic Drug Cost
$218K
Opioid Claims
39 (1.5% rate)
Antibiotic Claims
12

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
1.48
Gender Split
52% female / 48% male
Age Distribution
<65: 72, 65-74: 148, 75-84: 136, 85+: 78

Top Prescribed Drugs (Medicare Part D)

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

What YUCHENG LIAO, MD PHD 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
Memantine Hcl
347
Levetiracetam
302
Alprazolam
138
Donepezil Hcl
99
Gabapentin
91
Carbidopa-Levodopa Er
Carbidopa/Levodopa
89
Butalbital-Acetaminophen-Caffe
Butalb/Acetaminophen/Caffeine
81
Briviact
Brivaracetam
73
Divalproex Sodium Er
Divalproex Sodium
70
Phenobarbital
64

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

Neurology Physician Overview

How YUCHENG LIAO, MD PHD fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

YUCHENG LIAO, MD PHD's 2,544 claims are above the specialty average of 1,309.

Nearby Neurology Physician Providers in California

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

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

Frequently Asked Questions

What is YUCHENG LIAO, MD PHD's specialty?
YUCHENG LIAO, MD PHD specializes in Neurology Physician and practices in OXNARD, California. Credentials: MD PHD.
How much does YUCHENG LIAO, MD PHD prescribe under Medicare Part D?
In 2023, YUCHENG LIAO, MD PHD wrote 2,544 Medicare Part D claims totaling $1.3M in drug costs for 434 beneficiaries.
What is YUCHENG LIAO, MD PHD's Medicare quality score?
YUCHENG LIAO, MD PHD has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is YUCHENG LIAO, MD PHD located?
YUCHENG LIAO, MD PHD is located at 1700 N ROSE AVE, OXNARD, CA, 93030. Phone: (805) 983-6929.
What is YUCHENG LIAO, MD PHD's NPI number?
YUCHENG LIAO, MD PHD's National Provider Identifier (NPI) is 1922102029, issued on 09/11/2006.
Does YUCHENG LIAO, MD PHD prescribe more brand-name or generic drugs?
YUCHENG LIAO, MD PHD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $1.0M in brand drug costs.
Does YUCHENG LIAO, MD PHD prescribe opioids?
Yes, YUCHENG LIAO, MD PHD had 39 opioid claims in 2023 with an opioid prescribing rate of 1.5%.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does YUCHENG LIAO, MD PHD prescribe most often?
Based on 2023 Medicare Part D data, YUCHENG LIAO, MD PHD's most frequently prescribed drugs include Memantine Hcl, Levetiracetam, Alprazolam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does YUCHENG LIAO, MD PHD accept Medicare?
YUCHENG LIAO, MD PHD appears in CMS Medicare data with 2,544 Part D claims and 434 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify YUCHENG LIAO, MD PHD's credentials?
YUCHENG LIAO, MD PHD's NPI is 1922102029 with credentials MD PHD. 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