2026 NPPES data Obstetrics & Gynecology Nurse Practitioner NPI 1740262567 APRN
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MERRILYN MCNATT, APRN

Obstetrics & Gynecology Nurse Practitioner in NEW LONDON, Connecticut. 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

MERRILYN MCNATT, APRN is a Obstetrics & Gynecology Nurse Practitioner in NEW LONDON, Connecticut, 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.

What does the federal data show about MERRILYN MCNATT, APRN?

Quality data not reported

NPI registry status

Active

Issued 11/17/2005

NPI 1740262567

Primary specialty

Obstetrics & Gynecology Nurse Practitioner

Niche

2,864 US NPIs in this specialty

Specialty distribution in Connecticut

How Obstetrics & Gynecology Nurse Practitioner compares to other specialties among Connecticut providers

Connecticut providers

Obstetrics & Gynecology Nurse Practitioner share within Connecticut

1. Obstetrics & Gynecology Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Nurse Practitioner share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology 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).

MERRILYN MCNATT, APRN appears in the CMS NPPES registry as a Obstetrics & Gynecology Nurse Practitioner provider holding APRN credentials at 342 MONTAUK AVE, NEW LONDON, CT, 06320, with a listed phone of (860) 442-9646. NPI 1740262567 was issued on 11/17/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCNATT 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 Obstetrics & Gynecology Nurse Practitioner providers operate outside Part D entirely.

Obstetrics & Gynecology Nurse Practitioner is a narrow specialty nationwide, with 2,864 enrolled providers across 52 states and an average of 232 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

342 MONTAUK AVE
NEW LONDON, CT 06320

Provider Details

NPI 1740262567
Specialty Obstetrics & Gynecology Nurse Practitioner
Credentials APRN
Gender Female
NPI Issued 11/17/2005

Obstetrics & Gynecology Nurse Practitioner Overview

How MERRILYN MCNATT, APRN fits within the Obstetrics & Gynecology Nurse Practitioner landscape nationally.

2,864
Obstetrics & Gynecology Nurse Practitioner Providers in US
52
States with Obstetrics & Gynecology Nurse Practitioner
232
Avg Claims per Provider

Nearby Obstetrics & Gynecology Nurse Practitioner Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as MCNATT.

Compare Obstetrics & Gynecology Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is MERRILYN MCNATT, APRN's specialty?
MERRILYN MCNATT, APRN specializes in Obstetrics & Gynecology Nurse Practitioner and practices in NEW LONDON, Connecticut. Credentials: APRN.
Where is MERRILYN MCNATT, APRN located?
MERRILYN MCNATT, APRN is located at 342 MONTAUK AVE, NEW LONDON, CT, 06320. Phone: (860) 442-9646.
What is MERRILYN MCNATT, APRN's NPI number?
MERRILYN MCNATT, APRN's National Provider Identifier (NPI) is 1740262567, issued on 11/17/2005.
How many Obstetrics & Gynecology Nurse Practitioner providers are there in the US?
There are 2,864 Obstetrics & Gynecology Nurse Practitioner providers across 52 states in the US. The average Obstetrics & Gynecology Nurse Practitioner provider writes 232 Medicare Part D claims per year.
Does MERRILYN MCNATT, APRN accept Medicare?
MERRILYN MCNATT, APRN appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MERRILYN MCNATT, APRN's credentials?
MERRILYN MCNATT, APRN's NPI is 1740262567 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.
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