Christine Nguyen, PMHNP-BC
Case Manager/Care Coordinator in Oakland, 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 160,120 in Case Manager/Care Coordinator, 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.
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Christine Nguyen, PMHNP-BC filed 597 Medicare Part D claims in 2023 as a Case Manager/Care Coordinator in Oakland, California, prescribing 97% generic.
- 597
- Part D claims, 2023
- 97%
- generic prescribing
- $474.1
- industry payments (Sunshine Act)
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.
Christine Nguyen, PMHNP-BC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
597 Top 34% higher than 66% 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
What does the federal data show about Christine Nguyen, PMHNP-BC?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in California
How Case Manager/Care Coordinator compares to other specialties among California providers
Largest specialties in California (% of in-state providers)
Case Manager/Care Coordinator ranks #8 among California's specialties (2.8% of in-state providers)
Each bar is a specialty's share of the California provider total, by primary NUCC taxonomy. The highlighted bar is Case Manager/Care Coordinator; the long tail of smaller specialties is omitted for legibility.
Specialty board-certification context
Estimated specialty board-certified rate - Case Manager/Care Coordinator (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Case Manager/Care Coordinator ABMS/AOA estimate
Est. board-certified rate (Case Manager/Care Coordinator) - ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Case Manager/Care Coordinator US NPIs
Specialty board-certified rate - Case Manager/Care Coordinator estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
Christine Nguyen, PMHNP-BC appears in the CMS NPPES registry as a Case Manager/Care Coordinator provider holding PMHNP-BC credentials at 818 WEBSTER ST, Oakland, CA, 94607, with a listed phone of (510) 986-6880. NPI 1609375385 was issued on 02/07/2018. 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 597 prescription claims written by this provider, covering 74 Medicare beneficiaries and totaling roughly $111K in drug spend, split 3% brand-name and 97% generic by claim count. 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.
Case Manager/Care Coordinator is a high-volume specialty nationwide, with 160,120 enrolled providers across 54 states and an average of 859 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 | 1609375385 |
|---|---|
| Specialty | Case Manager/Care Coordinator |
| Credentials | PMHNP-BC |
| Gender | Female |
| NPI Issued | 02/07/2018 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Christine Nguyen, PMHNP-BC's current license status, disciplinary history, and board certifications with the Medical Board of California in California before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where Christine Nguyen, PMHNP-BC 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.
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 Christine Nguyen, PMHNP-BC. Source: openpaymentsdata.cms.gov.
Total received
$474
Largest payer
ITI, Inc. (d/b/a Intra-Cellular Therapies, 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 Christine Nguyen, PMHNP-BC. To verify Christine Nguyen, PMHNP-BC's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
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
3% brand-name claims vs 97% generic, on 597 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.
Prescribing Breakdown
- 30-Day Fills
- 1,137
- Total Day Supply
- 33,853
- Brand vs Generic
- 3% brand / 97% generic
- Brand Drug Cost
- $57K
- Generic Drug Cost
- $54K
Patient Demographics
- Average Patient Age
- 65.1 years
- Avg HCC Risk Score
- 1.17
- Gender Split
- 69% female / 31% male
- Age Distribution
- <65: 28, 65-74: 35, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Christine Nguyen, PMHNP-BC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Duloxetine Hcl
Duloxetine Hcl
68 claims
- Quetiapine Fumarate
Quetiapine Fumarate
62 claims
- Mirtazapine
Mirtazapine
54 claims
- Trazodone Hcl
Trazodone Hcl
53 claims
- Risperidone
Risperidone
50 claims
- Sertraline Hcl
Sertraline Hcl
43 claims
- Aripiprazole
Aripiprazole
30 claims
- Prazosin Hcl
Prazosin Hcl
30 claims
| Drug | Claims |
|---|---|
| Duloxetine Hcl | 68 |
| Quetiapine Fumarate | 62 |
| Mirtazapine | 54 |
| Trazodone Hcl | 53 |
| Risperidone | 50 |
| Sertraline Hcl | 43 |
| Aripiprazole | 30 |
| Prazosin Hcl | 30 |
| Olanzapine | 25 |
| Benztropine Mesylate | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Case Manager/Care Coordinator Overview
How Christine Nguyen, PMHNP-BC fits within the Case Manager/Care Coordinator landscape nationally.
Christine Nguyen, PMHNP-BC's 597 claims are below the specialty average of 859.
Nearby Case Manager/Care Coordinator Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Nguyen.
Compare Case Manager/Care Coordinator 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 Case Manager/Care Coordinator 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
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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