2026 NPPES data Family Nurse Practitioner NPI 1376978221 F.N.P.
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KIMBERLY LAFFERTY, F.N.P.

Family Nurse Practitioner in NEWARK, Delaware. 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
591
Medicare Part D claims · 159 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KIMBERLY LAFFERTY, F.N.P. filed 591 Medicare Part D claims in 2023 as a Family Nurse Practitioner in NEWARK, Delaware, prescribing 55% generic.

591
Part D claims, 2023
55%
generic prescribing

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 LAFFERTY, F.N.P.'s Medicare Part D volume vs every U.S. prescriber

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

591 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 KIMBERLY LAFFERTY, F.N.P.?

Quality data not reported

NPI registry status

Active

Issued 09/11/2013

NPI 1376978221

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

591 52% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Delaware

How Family Nurse Practitioner compares to other specialties among Delaware providers

Delaware providers

Family Nurse Practitioner share within Delaware

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

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 LAFFERTY, F.N.P. appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding F.N.P. credentials at 774 CHRISTIANA RD STE 109, NEWARK, DE, 19713, with a listed phone of (302) 444-8156. NPI 1376978221 was issued on 09/11/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LAFFERTY 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 591 prescription claims written by this provider, covering 159 Medicare beneficiaries and totaling roughly $275K in drug spend, split 45% brand-name and 55% 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

774 CHRISTIANA RD STE 109
NEWARK, DE 19713

Provider Details

NPI 1376978221
Specialty Family Nurse Practitioner
Credentials F.N.P.
Gender Female
NPI Issued 09/11/2013

Hospital and facility affiliations

Facilities where KIMBERLY LAFFERTY, F.N.P. 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.

SILVER WILLOW WELLNESS PC
PLYMOUTH MEETING, PA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

KIMBERLY LAFFERTY, F.N.P. — brand share 45.0%
Specialty average (est.)

45% brand-name claims vs 55% generic, on 591 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.

591
Total Claims
$275K
Total Drug Cost
159
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,470
Total Day Supply
43,995
Brand vs Generic
45% brand / 55% generic
Brand Drug Cost
$256K
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
71.2 years
Avg HCC Risk Score
1.43
Gender Split
57% female / 43% 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 LAFFERTY, F.N.P. 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
Levothyroxine Sodium
52
Metformin Hcl
39
Metformin Hcl Er
Metformin Hcl
32
Synthroid
Levothyroxine Sodium
30
Jardiance
Empagliflozin
25
Novolog Flexpen
Insulin Aspart
24
Glimepiride
22
Atorvastatin Calcium
21
Trulicity
Dulaglutide
19
Glipizide
17

* 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 LAFFERTY, F.N.P. 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 LAFFERTY, F.N.P.'s 591 claims are below the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Delaware

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

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

Frequently Asked Questions

What is KIMBERLY LAFFERTY, F.N.P.'s specialty?
KIMBERLY LAFFERTY, F.N.P. specializes in Family Nurse Practitioner and practices in NEWARK, Delaware. Credentials: F.N.P..
How much does KIMBERLY LAFFERTY, F.N.P. prescribe under Medicare Part D?
In 2023, KIMBERLY LAFFERTY, F.N.P. wrote 591 Medicare Part D claims totaling $275K in drug costs for 159 beneficiaries.
Where is KIMBERLY LAFFERTY, F.N.P. located?
KIMBERLY LAFFERTY, F.N.P. is located at 774 CHRISTIANA RD STE 109, NEWARK, DE, 19713. Phone: (302) 444-8156.
What is KIMBERLY LAFFERTY, F.N.P.'s NPI number?
KIMBERLY LAFFERTY, F.N.P.'s National Provider Identifier (NPI) is 1376978221, issued on 09/11/2013.
Does KIMBERLY LAFFERTY, F.N.P. prescribe more brand-name or generic drugs?
KIMBERLY LAFFERTY, F.N.P.'s prescribing is 45% brand-name and 55% generic drugs by claim count, with $256K 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 LAFFERTY, F.N.P. prescribe most often?
Based on 2023 Medicare Part D data, KIMBERLY LAFFERTY, F.N.P.'s most frequently prescribed drugs include Levothyroxine Sodium, Metformin Hcl, Metformin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KIMBERLY LAFFERTY, F.N.P. accept Medicare?
KIMBERLY LAFFERTY, F.N.P. appears in CMS Medicare data with 591 Part D claims and 159 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KIMBERLY LAFFERTY, F.N.P.'s credentials?
KIMBERLY LAFFERTY, F.N.P.'s NPI is 1376978221 with credentials F.N.P.. 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