2026 NPPES data Case Manager/Care Coordinator NPI 1609375385 PMHNP-BC
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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.

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
597
Medicare Part D claims · 74 beneficiaries · Case Manager/Care Coordinator avg: 859
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$474.1
20 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

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

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 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

What does the federal data show about Christine Nguyen, PMHNP-BC?

Quality data not reported

NPI registry status

Active

Issued 02/07/2018

NPI 1609375385

Primary specialty

Case Manager/Care Coordinator

High-volume

160,120 US NPIs in this specialty

Medicare Part D claims

597 31% vs specialty avg

2023 prescription claims

Specialty avg: 859

Specialty distribution in California

How Case Manager/Care Coordinator compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician - 17.3%Behavior Technician17.3%Marriage & Family Therapist - 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program - 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor - 3.9%Mental Health Counselor3.9%Pharmacist - 3.5%Pharmacist3.5%Clinical Social Worker - 3.1%Clinical Social Worker3.1%Case Manager/Care Coordinator - 2.8%Case Manager/Care Coordinator2.8%
Largest specialties in California (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate - Case Manager/Care Coordinator (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Case Manager/Care Coordinator ABMS/AOA estimate

Est. board-certified rate (Case Manager/Care Coordinator) - ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Case Manager/Care Coordinator) - 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).

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

818 WEBSTER ST
Oakland, CA 94607

Provider Details

NPI 1609375385
Specialty Case Manager/Care Coordinator
Credentials PMHNP-BC
Gender Female
NPI Issued 02/07/2018

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.

Asian Health Services
Oakland, 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 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.

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

Christine Nguyen, PMHNP-BC - brand share 3.0%
Case Manager/Care Coordinator average

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.

597
Total Claims
$111K
Total Drug Cost
74
Medicare Beneficiaries

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

160,120
Case Manager/Care Coordinator Providers in US
54
States with Case Manager/Care Coordinator
859
Avg Claims per Provider

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.

Frequently Asked Questions

What is Christine Nguyen, PMHNP-BC's specialty?
Christine Nguyen, PMHNP-BC specializes in Case Manager/Care Coordinator and practices in Oakland, California. Credentials: PMHNP-BC.
How much does Christine Nguyen, PMHNP-BC prescribe under Medicare Part D?
In 2023, Christine Nguyen, PMHNP-BC wrote 597 Medicare Part D claims totaling $111K in drug costs for 74 beneficiaries.
Where is Christine Nguyen, PMHNP-BC located?
Christine Nguyen, PMHNP-BC is located at 818 WEBSTER ST, Oakland, CA, 94607. Phone: (510) 986-6880.
What is Christine Nguyen, PMHNP-BC's NPI number?
Christine Nguyen, PMHNP-BC's National Provider Identifier (NPI) is 1609375385, issued on 02/07/2018.
Does Christine Nguyen, PMHNP-BC prescribe more brand-name or generic drugs?
Christine Nguyen, PMHNP-BC's prescribing is 3% brand-name and 97% generic drugs by claim count, with $57K in brand drug costs.
How many Case Manager/Care Coordinator providers are there in the US?
There are 160,120 Case Manager/Care Coordinator providers across 54 states in the US. The average Case Manager/Care Coordinator provider writes 859 Medicare Part D claims per year.
What drugs does Christine Nguyen, PMHNP-BC prescribe most often?
Based on 2023 Medicare Part D data, Christine Nguyen, PMHNP-BC's most frequently prescribed drugs include Duloxetine Hcl, Quetiapine Fumarate, Mirtazapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christine Nguyen, PMHNP-BC accept Medicare?
Christine Nguyen, PMHNP-BC appears in CMS Medicare data with 597 Part D claims and 74 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christine Nguyen, PMHNP-BC's credentials?
Christine Nguyen, PMHNP-BC's NPI is 1609375385 with credentials PMHNP-BC. 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

Compiled from official public sources by the PlainDoctor editorial team.