2026 NPPES data Critical Care Medicine Registered Nurse NPI 1588275101 APRN
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CHRISTINA ST CLAIR, APRN

Critical Care Medicine Registered Nurse in EASLEY, 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
130
Medicare Part D claims · 40 beneficiaries · Critical Care Medicine Registered Nurse avg: 752

What the federal data shows

CHRISTINA ST CLAIR, APRN filed 130 Medicare Part D claims in 2023 as a Critical Care Medicine Registered Nurse in EASLEY, South Carolina.

130
Part D claims, 2023

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.

CHRISTINA ST CLAIR, APRN's Medicare Part D volume vs every U.S. prescriber

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

130 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 CHRISTINA ST CLAIR, APRN?

Quality data not reported

NPI registry status

Active

Issued 08/17/2020

NPI 1588275101

Primary specialty

Critical Care Medicine Registered Nurse

Mid-sized

6,529 US NPIs in this specialty

Medicare Part D claims

130 83% vs specialty avg

2023 prescription claims

Specialty avg: 752

Specialty distribution in South Carolina

How Critical Care Medicine Registered Nurse compares to other specialties among South Carolina providers

South Carolina providers

Critical Care Medicine Registered Nurse share within South Carolina

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

Specialty board-certification context

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

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

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

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

CHRISTINA ST CLAIR, APRN appears in the CMS NPPES registry as a Critical Care Medicine Registered Nurse provider holding APRN credentials at 101 GRACE DR, EASLEY, SC, 29640, with a listed phone of (888) 515-3007. NPI 1588275101 was issued on 08/17/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ST CLAIR 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 130 prescription claims written by this provider, covering 40 Medicare beneficiaries and totaling roughly $14K in drug spend. 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.

Critical Care Medicine Registered Nurse is a mid-sized specialty nationwide, with 6,529 enrolled providers across 53 states and an average of 752 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

101 GRACE DR
EASLEY, SC 29640

Provider Details

NPI 1588275101
Specialty Critical Care Medicine Registered Nurse
Credentials APRN
Gender Female
NPI Issued 08/17/2020

Hospital and facility affiliations

Facilities where CHRISTINA ST CLAIR, APRN 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.

CH SPECIALTY SERVICES SC LLC
NORTH CHARLESTON, SC
CURANA HEALTH OF SOUTH CAROLINA PC
NORTH CHARLESTON, SC
NCMWC, INC
RALEIGH, NC
SCMWC INC
MYRTLE BEACH, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

130
Total Claims
$14K
Total Drug Cost
40
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
272
Total Day Supply
7,611
Generic Drug Cost
$4K
Antibiotic Claims
20

Patient Demographics

Average Patient Age
74.8 years
Avg HCC Risk Score
3.46
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Doxycycline Hyclate
17

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

Critical Care Medicine Registered Nurse Overview

How CHRISTINA ST CLAIR, APRN fits within the Critical Care Medicine Registered Nurse landscape nationally.

6,529
Critical Care Medicine Registered Nurse Providers in US
53
States with Critical Care Medicine Registered Nurse
752
Avg Claims per Provider

CHRISTINA ST CLAIR, APRN's 130 claims are below the specialty average of 752.

Nearby Critical Care Medicine 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 ST CLAIR.

Compare Critical Care Medicine Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTINA ST CLAIR, APRN's specialty?
CHRISTINA ST CLAIR, APRN specializes in Critical Care Medicine Registered Nurse and practices in EASLEY, South Carolina. Credentials: APRN.
How much does CHRISTINA ST CLAIR, APRN prescribe under Medicare Part D?
In 2023, CHRISTINA ST CLAIR, APRN wrote 130 Medicare Part D claims totaling $14K in drug costs for 40 beneficiaries.
Where is CHRISTINA ST CLAIR, APRN located?
CHRISTINA ST CLAIR, APRN is located at 101 GRACE DR, EASLEY, SC, 29640. Phone: (888) 515-3007.
What is CHRISTINA ST CLAIR, APRN's NPI number?
CHRISTINA ST CLAIR, APRN's National Provider Identifier (NPI) is 1588275101, issued on 08/17/2020.
How many Critical Care Medicine Registered Nurse providers are there in the US?
There are 6,529 Critical Care Medicine Registered Nurse providers across 53 states in the US. The average Critical Care Medicine Registered Nurse provider writes 752 Medicare Part D claims per year.
What drugs does CHRISTINA ST CLAIR, APRN prescribe most often?
Based on 2023 Medicare Part D data, CHRISTINA ST CLAIR, APRN's most frequently prescribed drugs include Doxycycline Hyclate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTINA ST CLAIR, APRN accept Medicare?
CHRISTINA ST CLAIR, APRN appears in CMS Medicare data with 130 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTINA ST CLAIR, APRN's credentials?
CHRISTINA ST CLAIR, APRN's NPI is 1588275101 with credentials APRN. 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