2026 NPPES data Gerontology Nurse Practitioner NPI 1982837068 GNP, GCNS
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YVETTE CHU, GNP, GCNS

Gerontology Nurse Practitioner in SOUTH SAN FRANCISCO, 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
134
Medicare Part D claims · 38 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Industry payments
$99.84
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

YVETTE CHU, GNP, GCNS filed 134 Medicare Part D claims in 2023 as a Gerontology Nurse Practitioner in SOUTH SAN FRANCISCO, California.

134
Part D claims, 2023
$99.84
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.

YVETTE CHU, GNP, GCNS's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

134 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 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 YVETTE CHU, GNP, GCNS?

Quality data not reported

NPI registry status

Active

Issued 08/24/2009

NPI 1982837068

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

134 90% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in California

How Gerontology Nurse Practitioner compares to other specialties among California providers

California providers

Gerontology Nurse Practitioner share within California

1. Gerontology Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gerontology Nurse Practitioner share within California

Specialty board-certification context

Estimated specialty board-certified rate — Gerontology Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gerontology Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Gerontology Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gerontology Nurse Practitioner) — 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).

YVETTE CHU, GNP, GCNS appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding GNP, GCNS credentials at 1200 EL CAMINO REAL, SOUTH SAN FRANCISCO, CA, 94080, with a listed phone of (650) 742-2000. NPI 1982837068 was issued on 08/24/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHU 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 134 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $6K in drug spend. 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.

Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 enrolled providers across 54 states and an average of 1,283 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

1200 EL CAMINO REAL
SOUTH SAN FRANCISCO, CA 94080

Provider Details

NPI 1982837068
Specialty Gerontology Nurse Practitioner
Credentials GNP, GCNS
Gender Female
NPI Issued 08/24/2009

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 YVETTE CHU, GNP, GCNS. Source: openpaymentsdata.cms.gov.

Total received

$100

Largest payer

Biogen, 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 YVETTE CHU, GNP, GCNS. To verify YVETTE CHU, GNP, GCNS'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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

134
Total Claims
$6K
Total Drug Cost
38
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
355
Total Day Supply
10,581
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
85.3 years
Avg HCC Risk Score
2.40
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
16

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

Gerontology Nurse Practitioner Overview

How YVETTE CHU, GNP, GCNS fits within the Gerontology Nurse Practitioner landscape nationally.

9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider

YVETTE CHU, GNP, GCNS's 134 claims are below the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in California

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

Compare Gerontology Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is YVETTE CHU, GNP, GCNS's specialty?
YVETTE CHU, GNP, GCNS specializes in Gerontology Nurse Practitioner and practices in SOUTH SAN FRANCISCO, California. Credentials: GNP, GCNS.
How much does YVETTE CHU, GNP, GCNS prescribe under Medicare Part D?
In 2023, YVETTE CHU, GNP, GCNS wrote 134 Medicare Part D claims totaling $6K in drug costs for 38 beneficiaries.
Where is YVETTE CHU, GNP, GCNS located?
YVETTE CHU, GNP, GCNS is located at 1200 EL CAMINO REAL, SOUTH SAN FRANCISCO, CA, 94080. Phone: (650) 742-2000.
What is YVETTE CHU, GNP, GCNS's NPI number?
YVETTE CHU, GNP, GCNS's National Provider Identifier (NPI) is 1982837068, issued on 08/24/2009.
How many Gerontology Nurse Practitioner providers are there in the US?
There are 9,625 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does YVETTE CHU, GNP, GCNS prescribe most often?
Based on 2023 Medicare Part D data, YVETTE CHU, GNP, GCNS's most frequently prescribed drugs include Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does YVETTE CHU, GNP, GCNS accept Medicare?
YVETTE CHU, GNP, GCNS appears in CMS Medicare data with 134 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify YVETTE CHU, GNP, GCNS's credentials?
YVETTE CHU, GNP, GCNS's NPI is 1982837068 with credentials GNP, GCNS. 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