2026 NPPES data Family Nurse Practitioner NPI 1831423896 FNP
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KIMBERLY COOK, FNP

Family Nurse Practitioner in TUSTIN, 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
2K
Medicare Part D claims · 149 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$816.47
36 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KIMBERLY COOK, FNP filed 1,709 Medicare Part D claims in 2023 as a Family Nurse Practitioner in TUSTIN, California, prescribing 54% generic.

2K
Part D claims, 2023
54%
generic prescribing
$816.47
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.

KIMBERLY COOK, FNP's Medicare Part D volume vs every U.S. prescriber

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

1,709 Top 17% higher than 83% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). This entry sits in this band. 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 KIMBERLY COOK, FNP?

Quality data not reported

NPI registry status

Active

Issued 09/23/2009

NPI 1831423896

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

1,709 40% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in California

How Family Nurse Practitioner compares to other specialties among California providers

California providers

Family Nurse Practitioner share within California

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family 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).

KIMBERLY COOK, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 1 HOPE DR, TUSTIN, CA, 92782, with a listed phone of (714) 247-0300. NPI 1831423896 was issued on 09/23/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COOK 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 1,709 prescription claims written by this provider, covering 149 Medicare beneficiaries and totaling roughly $1.0 million in drug spend, split 46% brand-name and 54% 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

1 HOPE DR
TUSTIN, CA 92782

Provider Details

NPI 1831423896
Specialty Family Nurse Practitioner
Credentials FNP
Gender Female
NPI Issued 09/23/2009

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 KIMBERLY COOK, FNP. Source: openpaymentsdata.cms.gov.

Total received

$816

Largest payer

Lilly USA, LLC

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 KIMBERLY COOK, FNP. To verify KIMBERLY COOK, FNP'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 · Above average

KIMBERLY COOK, FNP — brand share 46.0%
Specialty average (est.)

46% brand-name claims vs 54% generic, on 1,709 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.

1,709
Total Claims
$1.0M
Total Drug Cost
149
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,043
Total Day Supply
120,391
Brand vs Generic
46% brand / 54% generic
Brand Drug Cost
$977K
Generic Drug Cost
$35K

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.67
Gender Split
52% female / 48% male

Top Prescribed Drugs (Medicare Part D)

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

What KIMBERLY COOK, FNP 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
Atorvastatin Calcium
137
Pioglitazone Hcl
126
Metformin Hcl
111
Trulicity
Dulaglutide
104
Glimepiride
103
Levothyroxine Sodium
97
Ozempic
Semaglutide
68
Rosuvastatin Calcium
49
Jardiance
Empagliflozin
41
Synjardy Xr
Empagliflozin/Metformin Hcl
39

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

Family Nurse Practitioner Overview

How KIMBERLY COOK, FNP fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

KIMBERLY COOK, FNP's 1,709 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in California

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

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

Frequently Asked Questions

What is KIMBERLY COOK, FNP's specialty?
KIMBERLY COOK, FNP specializes in Family Nurse Practitioner and practices in TUSTIN, California. Credentials: FNP.
How much does KIMBERLY COOK, FNP prescribe under Medicare Part D?
In 2023, KIMBERLY COOK, FNP wrote 1,709 Medicare Part D claims totaling $1.0M in drug costs for 149 beneficiaries.
Where is KIMBERLY COOK, FNP located?
KIMBERLY COOK, FNP is located at 1 HOPE DR, TUSTIN, CA, 92782. Phone: (714) 247-0300.
What is KIMBERLY COOK, FNP's NPI number?
KIMBERLY COOK, FNP's National Provider Identifier (NPI) is 1831423896, issued on 09/23/2009.
Does KIMBERLY COOK, FNP prescribe more brand-name or generic drugs?
KIMBERLY COOK, FNP's prescribing is 46% brand-name and 54% generic drugs by claim count, with $977K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does KIMBERLY COOK, FNP prescribe most often?
Based on 2023 Medicare Part D data, KIMBERLY COOK, FNP's most frequently prescribed drugs include Atorvastatin Calcium, Pioglitazone Hcl, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KIMBERLY COOK, FNP accept Medicare?
KIMBERLY COOK, FNP appears in CMS Medicare data with 1,709 Part D claims and 149 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KIMBERLY COOK, FNP's credentials?
KIMBERLY COOK, FNP's NPI is 1831423896 with credentials FNP. 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