NPI registry status
Active
2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1316639834 NURSE PRACTITIONER
Verify on CMS → Lian Liu, NURSE PRACTITIONER
Psychiatric/Mental Health Nurse Practitioner in Stockton, 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 44,928 in Psychiatric/Mental Health Nurse Practitioner, 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
138
Medicare Part D claims · 22 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 895
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.9K
69 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Lian Liu, NURSE PRACTITIONER filed 138 Medicare Part D claims in 2024 as a Psychiatric/Mental Health Nurse Practitioner in Stockton, California, prescribing 91% generic.
- 138
- Part D claims, 2024
- 91%
- generic prescribing
- $1.9K
- industry payments (Sunshine Act)
- ≥34th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Lian Liu, NURSE PRACTITIONER
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1316639834), first enumerated 05/23/2023.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 138 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$1.9K in reported industry payments (69 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Lian Liu, NURSE PRACTITIONER's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1316639834 · Psychiatric/Mental Health Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1316639834
- ENUM-RECENT 2023
- TAX-MID 45K Psychiatric/Mental Health
- RX-LIGHT 138
- BOOK-LIGHT 3,076 in California
- PHOTO-ENUM Heather Lett · 2023
Lian Liu, NURSE PRACTITIONER's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
138 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Lian Liu, NURSE PRACTITIONER?
Quality data not reportedPrimary specialty
Psychiatric/Mental Health Nurse Practitioner
Medicare Part D claims
138 85% vs specialty avg
Specialty distribution in California
How Psychiatric/Mental Health Nurse Practitioner 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 Psychiatric/Mental Health Nurse Practitioner. 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).
Practice Address
Provider Details
| NPI | 1316639834 |
|---|---|
| Specialty | Psychiatric/Mental Health Nurse Practitioner |
| Credentials | NURSE PRACTITIONER |
| Gender | Female |
| NPI Issued | 05/23/2023 |
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 Lian Liu, NURSE PRACTITIONER. Source: openpaymentsdata.cms.gov.
Total received
$1.9K
Largest payer
Neurocrine Biosciences, 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 Lian Liu, NURSE PRACTITIONER. To verify Lian Liu, NURSE PRACTITIONER'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 · Generic-heavy
Lian Liu, NURSE PRACTITIONER - brand share 9.0%
Psychiatric/Mental Health Nurse Practitioner average
9% brand-name claims vs 91% generic, on 138 2024 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 2024.
138
Total Claims
$20K
Total Drug Cost
22
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 148.167
- Total Day Supply
- 3,991
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $15K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 54.5 years
- Avg HCC Risk Score
- 1.23
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Lian Liu, NURSE PRACTITIONER prescribes most
Top Medicare Part D drugs by claim count, 2024
- Quetiapine Fumarate
Quetiapine Fumarate
14 claims
- Hydroxyzine Hcl
Hydroxyzine Hcl
12 claims
- Diazepam
Diazepam
11 claims
- Duloxetine Hcl
Duloxetine Hcl
11 claims
| Drug | Claims |
|---|---|
| Quetiapine Fumarate | 14 |
| Hydroxyzine Hcl | 12 |
| Diazepam | 11 |
| Duloxetine Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Psychiatric/Mental Health Nurse Practitioner in CA →
All providers in California →
Compare specialties →
Psychiatric/Mental Health Nurse Practitioner Overview
How Lian Liu, NURSE PRACTITIONER fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.
44,928
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
895
Avg Claims per Provider
Lian Liu, NURSE PRACTITIONER's 138 claims are below the specialty average of 895.
Nationwide Psychiatric/Mental Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Liu, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2023)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Psychiatric/Mental Health Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Liu.
One of 3,076 Psychiatric/Mental Health Nurse Practitioner providers enrolled in California, 5 are shown here.
Cristina Aamot
NP
Santa Ana, CA
Calista Abaekobe
NP
Culver City, CA
Jane Abanes
NP
San Francisco, CA
Pamela Joy Abao
NP
Valencia, CA
Kazeem Abass
Los Angeles, CA
Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Lian Liu, NURSE PRACTITIONER's specialty? ▼
Lian Liu, NURSE PRACTITIONER specializes in Psychiatric/Mental Health Nurse Practitioner and practices in Stockton, California. Credentials: NURSE PRACTITIONER.
How much does Lian Liu, NURSE PRACTITIONER prescribe under Medicare Part D? ▼
In 2024, Lian Liu, NURSE PRACTITIONER wrote 138 Medicare Part D claims totaling $20K in drug costs for 22 beneficiaries.
Where is Lian Liu, NURSE PRACTITIONER located? ▼
Lian Liu, NURSE PRACTITIONER is located at 3432 RIGHTEOUS DR, Stockton, CA, 95212. Phone: (608) 733-8976.
What is Lian Liu, NURSE PRACTITIONER's NPI number? ▼
Lian Liu, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1316639834, issued on 05/23/2023.
Does Lian Liu, NURSE PRACTITIONER prescribe more brand-name or generic drugs? ▼
Lian Liu, NURSE PRACTITIONER's prescribing is 9% brand-name and 91% generic drugs by claim count, with $15K in brand drug costs.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US? ▼
There are 44,928 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 895 Medicare Part D claims per year.
What drugs does Lian Liu, NURSE PRACTITIONER prescribe most often? ▼
Based on 2024 Medicare Part D data, Lian Liu, NURSE PRACTITIONER's most frequently prescribed drugs include Quetiapine Fumarate, Hydroxyzine Hcl, Diazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lian Liu, NURSE PRACTITIONER accept Medicare? ▼
Lian Liu, NURSE PRACTITIONER appears in CMS Medicare data with 138 Part D claims and 22 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lian Liu, NURSE PRACTITIONER's credentials? ▼
Lian Liu, NURSE PRACTITIONER's NPI is 1316639834 with credentials NURSE PRACTITIONER. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.