2026 NPPES data Registered Nurse NPI 1427676204 MSN, APRN, FNP-C
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ATIA NUNNALLY, MSN, APRN, FNP-C

Registered Nurse in ROCK HILL, 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
501
Medicare Part D claims · 113 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ATIA NUNNALLY, MSN, APRN, FNP-C filed 501 Medicare Part D claims in 2023 as a Registered Nurse in ROCK HILL, South Carolina, prescribing 95% generic.

501
Part D claims, 2023
95%
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.

ATIA NUNNALLY, MSN, APRN, FNP-C's Medicare Part D volume vs every U.S. prescriber

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

501 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 ATIA NUNNALLY, MSN, APRN, FNP-C?

Quality data not reported

NPI registry status

Active

Issued 07/08/2020

NPI 1427676204

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

501 50% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in South Carolina

How Registered Nurse compares to other specialties among South Carolina providers

South Carolina providers

Registered Nurse share within South Carolina

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within South Carolina

Specialty board-certification context

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

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

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

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

ATIA NUNNALLY, MSN, APRN, FNP-C appears in the CMS NPPES registry as a Registered Nurse provider holding MSN, APRN, FNP-C credentials at 2275 INDIA HOOK RD, ROCK HILL, SC, 29732, with a listed phone of (803) 329-1500. NPI 1427676204 was issued on 07/08/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NUNNALLY 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 501 prescription claims written by this provider, covering 113 Medicare beneficiaries and totaling roughly $18K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 26.7%. 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.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

2275 INDIA HOOK RD
ROCK HILL, SC 29732

Provider Details

NPI 1427676204
Specialty Registered Nurse
Credentials MSN, APRN, FNP-C
Gender Female
NPI Issued 07/08/2020

Hospital and facility affiliations

Facilities where ATIA NUNNALLY, MSN, APRN, FNP-C 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.

CAROLINA COMMUNITY CARE INC
ROCK HILL, 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).

Brand vs generic prescribing mix · Generic-heavy

ATIA NUNNALLY, MSN, APRN, FNP-C — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 501 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.

501
Total Claims
$18K
Total Drug Cost
113
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
602
Total Day Supply
14,363
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$5K
Generic Drug Cost
$13K
Opioid Claims
134 (26.7% rate)
Antibiotic Claims
25

Patient Demographics

Average Patient Age
80.8 years
Avg HCC Risk Score
2.73
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

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

What ATIA NUNNALLY, MSN, APRN, FNP-C 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
Oxycodone Hcl
34
Methadone Hcl
27
Tramadol Hcl
23
Furosemide
19
Mirtazapine
17
Morphine Sulfate
17
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
15
Buspirone Hcl
14
Gabapentin
14
Duloxetine Hcl
13

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

Registered Nurse Overview

How ATIA NUNNALLY, MSN, APRN, FNP-C fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

ATIA NUNNALLY, MSN, APRN, FNP-C's 501 claims are below the specialty average of 1,000.

Nearby Registered Nurse Providers in South Carolina

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

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is ATIA NUNNALLY, MSN, APRN, FNP-C's specialty?
ATIA NUNNALLY, MSN, APRN, FNP-C specializes in Registered Nurse and practices in ROCK HILL, South Carolina. Credentials: MSN, APRN, FNP-C.
How much does ATIA NUNNALLY, MSN, APRN, FNP-C prescribe under Medicare Part D?
In 2023, ATIA NUNNALLY, MSN, APRN, FNP-C wrote 501 Medicare Part D claims totaling $18K in drug costs for 113 beneficiaries.
Where is ATIA NUNNALLY, MSN, APRN, FNP-C located?
ATIA NUNNALLY, MSN, APRN, FNP-C is located at 2275 INDIA HOOK RD, ROCK HILL, SC, 29732. Phone: (803) 329-1500.
What is ATIA NUNNALLY, MSN, APRN, FNP-C's NPI number?
ATIA NUNNALLY, MSN, APRN, FNP-C's National Provider Identifier (NPI) is 1427676204, issued on 07/08/2020.
Does ATIA NUNNALLY, MSN, APRN, FNP-C prescribe more brand-name or generic drugs?
ATIA NUNNALLY, MSN, APRN, FNP-C's prescribing is 5% brand-name and 95% generic drugs by claim count, with $5K in brand drug costs.
Does ATIA NUNNALLY, MSN, APRN, FNP-C prescribe opioids?
Yes, ATIA NUNNALLY, MSN, APRN, FNP-C had 134 opioid claims in 2023 with an opioid prescribing rate of 26.7%.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does ATIA NUNNALLY, MSN, APRN, FNP-C prescribe most often?
Based on 2023 Medicare Part D data, ATIA NUNNALLY, MSN, APRN, FNP-C's most frequently prescribed drugs include Oxycodone Hcl, Methadone Hcl, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ATIA NUNNALLY, MSN, APRN, FNP-C accept Medicare?
ATIA NUNNALLY, MSN, APRN, FNP-C appears in CMS Medicare data with 501 Part D claims and 113 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ATIA NUNNALLY, MSN, APRN, FNP-C's credentials?
ATIA NUNNALLY, MSN, APRN, FNP-C's NPI is 1427676204 with credentials MSN, APRN, FNP-C. 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