2026 NPPES data Family Nurse Practitioner NPI 1518322080 F.N.P.
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CATHY MERRELL, F.N.P.

Family Nurse Practitioner in LAURENS, South Carolina. 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
4K
Medicare Part D claims · 540 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$214.53
11 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CATHY MERRELL, F.N.P. filed 4,007 Medicare Part D claims in 2023 as a Family Nurse Practitioner in LAURENS, South Carolina, prescribing 90% generic.

4K
Part D claims, 2023
90%
generic prescribing
$214.53
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.

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

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

4,007 Top 8% higher than 92% 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%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 CATHY MERRELL, F.N.P.?

Quality data not reported

NPI registry status

Active

Issued 12/28/2015

NPI 1518322080

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

4,007 228% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in South Carolina

How Family Nurse Practitioner compares to other specialties among South Carolina providers

South Carolina providers

Family Nurse Practitioner share within South Carolina

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

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).

CATHY MERRELL, F.N.P. appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding F.N.P. credentials at 106 PARKVIEW DR, LAURENS, SC, 29360, with a listed phone of (864) 984-0571. NPI 1518322080 was issued on 12/28/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MERRELL 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 4,007 prescription claims written by this provider, covering 540 Medicare beneficiaries and totaling roughly $294K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 0.3%. 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

106 PARKVIEW DR
LAURENS, SC 29360

Provider Details

NPI 1518322080
Specialty Family Nurse Practitioner
Credentials F.N.P.
Gender Female
NPI Issued 12/28/2015

Hospital and facility affiliations

Facilities where CATHY MERRELL, 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.

PRISMA HEALTH UNIVERSITY MEDICAL GROUP
LAURENS, SC

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 CATHY MERRELL, F.N.P.. Source: openpaymentsdata.cms.gov.

Total received

$215

Largest payer

PFIZER 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.

Brand vs generic prescribing mix · Typical

CATHY MERRELL, F.N.P. — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 4,007 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.

4,007
Total Claims
$294K
Total Drug Cost
540
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,705
Total Day Supply
213,470
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$237K
Generic Drug Cost
$55K
Opioid Claims
11 (0.3% rate)
Antibiotic Claims
323

Patient Demographics

Average Patient Age
71.4 years
Avg HCC Risk Score
1.47
Gender Split
68% female / 32% male
Age Distribution
<65: 115, 65-74: 184, 75-84: 175, 85+: 66

Top Prescribed Drugs (Medicare Part D)

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

What CATHY MERRELL, 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
Amlodipine Besylate
217
Atorvastatin Calcium
177
Lisinopril
154
Gabapentin
137
Losartan Potassium
134
Levothyroxine Sodium
132
Metoprolol Succinate
103
Hydrochlorothiazide
101
Metformin Hcl
84
Zolpidem Tartrate
81

* 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 CATHY MERRELL, 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

CATHY MERRELL, F.N.P.'s 4,007 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as MERRELL.

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

Frequently Asked Questions

What is CATHY MERRELL, F.N.P.'s specialty?
CATHY MERRELL, F.N.P. specializes in Family Nurse Practitioner and practices in LAURENS, South Carolina. Credentials: F.N.P..
How much does CATHY MERRELL, F.N.P. prescribe under Medicare Part D?
In 2023, CATHY MERRELL, F.N.P. wrote 4,007 Medicare Part D claims totaling $294K in drug costs for 540 beneficiaries.
Where is CATHY MERRELL, F.N.P. located?
CATHY MERRELL, F.N.P. is located at 106 PARKVIEW DR, LAURENS, SC, 29360. Phone: (864) 984-0571.
What is CATHY MERRELL, F.N.P.'s NPI number?
CATHY MERRELL, F.N.P.'s National Provider Identifier (NPI) is 1518322080, issued on 12/28/2015.
Does CATHY MERRELL, F.N.P. prescribe more brand-name or generic drugs?
CATHY MERRELL, F.N.P.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $237K in brand drug costs.
Does CATHY MERRELL, F.N.P. prescribe opioids?
Yes, CATHY MERRELL, F.N.P. had 11 opioid claims in 2023 with an opioid prescribing rate of 0.3%.
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 CATHY MERRELL, F.N.P. prescribe most often?
Based on 2023 Medicare Part D data, CATHY MERRELL, F.N.P.'s most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CATHY MERRELL, F.N.P. accept Medicare?
CATHY MERRELL, F.N.P. appears in CMS Medicare data with 4,007 Part D claims and 540 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CATHY MERRELL, F.N.P.'s credentials?
CATHY MERRELL, F.N.P.'s NPI is 1518322080 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