2026 NPPES data Sleep Medicine (Family Medicine) Physician NPI 1427008903 MD
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CAROLYN HART, MD

Sleep Medicine (Family Medicine) Physician in BOONE, North 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.

What the federal data shows

CAROLYN HART, MD is a Sleep Medicine (Family Medicine) Physician in BOONE, North Carolina, listed in the federal CMS National Provider Identifier registry.

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.

Board-eligible specialty (heuristic — not verified)

CAROLYN HART, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about CAROLYN HART, MD?

Quality data not reported

NPI registry status

Active

Issued 05/12/2006

NPI 1427008903

Primary specialty

Sleep Medicine (Family Medicine) Physician

Rare

190 US NPIs in this specialty

Specialty distribution in North Carolina

How Sleep Medicine (Family Medicine) Physician compares to other specialties among North Carolina providers

North Carolina providers

Sleep Medicine (Family Medicine) Physician share within North Carolina

1. Sleep Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Sleep Medicine (Family Medicine) Physician share within North Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Sleep Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Sleep Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Sleep Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Sleep Medicine (Family Medicine) Physician) — 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).

CAROLYN HART, MD appears in the CMS NPPES registry as a Sleep Medicine (Family Medicine) Physician provider holding MD credentials at 134 OAK LEAF TRL, BOONE, NC, 28607, with a listed phone of (704) 458-6544. NPI 1427008903 was issued on 05/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HART 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Sleep Medicine (Family Medicine) Physician providers operate outside Part D entirely.

Sleep Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 190 enrolled providers across 45 states and an average of 1,506 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

134 OAK LEAF TRL
BOONE, NC 28607

Provider Details

NPI 1427008903
Specialty Sleep Medicine (Family Medicine) Physician
Credentials MD
Gender Female
NPI Issued 05/12/2006

Sleep Medicine (Family Medicine) Physician Overview

How CAROLYN HART, MD fits within the Sleep Medicine (Family Medicine) Physician landscape nationally.

190
Sleep Medicine (Family Medicine) Physician Providers in US
45
States with Sleep Medicine (Family Medicine) Physician
1,506
Avg Claims per Provider

Nearby Sleep Medicine (Family Medicine) Physician Providers in North Carolina

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

Compare Sleep Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CAROLYN HART, MD's specialty?
CAROLYN HART, MD specializes in Sleep Medicine (Family Medicine) Physician and practices in BOONE, North Carolina. Credentials: MD.
Where is CAROLYN HART, MD located?
CAROLYN HART, MD is located at 134 OAK LEAF TRL, BOONE, NC, 28607. Phone: (704) 458-6544.
What is CAROLYN HART, MD's NPI number?
CAROLYN HART, MD's National Provider Identifier (NPI) is 1427008903, issued on 05/12/2006.
How many Sleep Medicine (Family Medicine) Physician providers are there in the US?
There are 190 Sleep Medicine (Family Medicine) Physician providers across 45 states in the US. The average Sleep Medicine (Family Medicine) Physician provider writes 1,506 Medicare Part D claims per year.
Does CAROLYN HART, MD accept Medicare?
CAROLYN HART, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CAROLYN HART, MD's credentials?
CAROLYN HART, MD's NPI is 1427008903 with credentials MD. 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.
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