2026 NPPES data Acute Care Nurse Practitioner NPI 1932747748 NP
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CHELSEY MASSEY, NP

Acute Care Nurse Practitioner in CHARLESTON, 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
116
Medicare Part D claims · 41 beneficiaries · Acute Care Nurse Practitioner avg: 576
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHELSEY MASSEY, NP filed 116 Medicare Part D claims in 2023 as a Acute Care Nurse Practitioner in CHARLESTON, South Carolina, prescribing 89% generic.

116
Part D claims, 2023
89%
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.

CHELSEY MASSEY, NP's Medicare Part D volume vs every U.S. prescriber

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

116 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 CHELSEY MASSEY, NP?

Quality data not reported

NPI registry status

Active

Issued 12/12/2019

NPI 1932747748

Primary specialty

Acute Care Nurse Practitioner

Mid-sized

24,583 US NPIs in this specialty

Medicare Part D claims

116 80% vs specialty avg

2023 prescription claims

Specialty avg: 576

Specialty distribution in South Carolina

How Acute Care Nurse Practitioner compares to other specialties among South Carolina providers

South Carolina providers

Acute Care Nurse Practitioner share within South Carolina

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

Specialty board-certification context

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

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

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

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

CHELSEY MASSEY, NP appears in the CMS NPPES registry as a Acute Care Nurse Practitioner provider holding NP credentials at 316 CALHOUN ST, CHARLESTON, SC, 29401, with a listed phone of (843) 720-8490. NPI 1932747748 was issued on 12/12/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MASSEY 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 116 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $6K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 50.0%. 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.

Acute Care Nurse Practitioner is a mid-sized specialty nationwide, with 24,583 enrolled providers across 53 states and an average of 576 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

316 CALHOUN ST
CHARLESTON, SC 29401

Provider Details

NPI 1932747748
Specialty Acute Care Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 12/12/2019

Hospital and facility affiliations

Facilities where CHELSEY MASSEY, NP 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.

UNIVERSITY MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL
CHARLESTON, 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 · Typical

CHELSEY MASSEY, NP — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 116 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.

116
Total Claims
$6K
Total Drug Cost
41
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
118
Total Day Supply
2,698
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$1K
Generic Drug Cost
$5K
Opioid Claims
58 (50.0% rate)

Patient Demographics

Average Patient Age
64.4 years
Avg HCC Risk Score
2.58
Gender Split
59% female / 41% male
Age Distribution
<65: 14, 65-74: 19, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Oxycodone Hcl
36

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

Acute Care Nurse Practitioner Overview

How CHELSEY MASSEY, NP fits within the Acute Care Nurse Practitioner landscape nationally.

24,583
Acute Care Nurse Practitioner Providers in US
53
States with Acute Care Nurse Practitioner
576
Avg Claims per Provider

CHELSEY MASSEY, NP's 116 claims are below the specialty average of 576.

Nearby Acute Care 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 MASSEY.

Compare Acute Care Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHELSEY MASSEY, NP's specialty?
CHELSEY MASSEY, NP specializes in Acute Care Nurse Practitioner and practices in CHARLESTON, South Carolina. Credentials: NP.
How much does CHELSEY MASSEY, NP prescribe under Medicare Part D?
In 2023, CHELSEY MASSEY, NP wrote 116 Medicare Part D claims totaling $6K in drug costs for 41 beneficiaries.
Where is CHELSEY MASSEY, NP located?
CHELSEY MASSEY, NP is located at 316 CALHOUN ST, CHARLESTON, SC, 29401. Phone: (843) 720-8490.
What is CHELSEY MASSEY, NP's NPI number?
CHELSEY MASSEY, NP's National Provider Identifier (NPI) is 1932747748, issued on 12/12/2019.
Does CHELSEY MASSEY, NP prescribe more brand-name or generic drugs?
CHELSEY MASSEY, NP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $1K in brand drug costs.
Does CHELSEY MASSEY, NP prescribe opioids?
Yes, CHELSEY MASSEY, NP had 58 opioid claims in 2023 with an opioid prescribing rate of 50.0%.
How many Acute Care Nurse Practitioner providers are there in the US?
There are 24,583 Acute Care Nurse Practitioner providers across 53 states in the US. The average Acute Care Nurse Practitioner provider writes 576 Medicare Part D claims per year.
What drugs does CHELSEY MASSEY, NP prescribe most often?
Based on 2023 Medicare Part D data, CHELSEY MASSEY, NP's most frequently prescribed drugs include Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHELSEY MASSEY, NP accept Medicare?
CHELSEY MASSEY, NP appears in CMS Medicare data with 116 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHELSEY MASSEY, NP's credentials?
CHELSEY MASSEY, NP's NPI is 1932747748 with credentials NP. 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