2026 NPPES data Acute Care Nurse Practitioner NPI 1235158932 A.P.R.N.
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STEPHANIE MERCK, A.P.R.N.

Acute Care Nurse Practitioner in TRUMBULL, 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.
Prescribing volume
101
Medicare Part D claims · 63 beneficiaries · Acute Care Nurse Practitioner avg: 576
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$13.52
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

STEPHANIE MERCK, A.P.R.N. filed 101 Medicare Part D claims in 2023 as a Acute Care Nurse Practitioner in TRUMBULL, Connecticut, prescribing 79% generic.

101
Part D claims, 2023
79%
generic prescribing
$13.52
industry payments (Sunshine Act)

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.

STEPHANIE MERCK, A.P.R.N.'s Medicare Part D volume vs every U.S. prescriber

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

101 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 STEPHANIE MERCK, A.P.R.N.?

Quality data not reported

NPI registry status

Active

Issued 07/19/2006

NPI 1235158932

Primary specialty

Acute Care Nurse Practitioner

Mid-sized

24,583 US NPIs in this specialty

Medicare Part D claims

101 82% vs specialty avg

2023 prescription claims

Specialty avg: 576

Specialty distribution in Connecticut

How Acute Care Nurse Practitioner compares to other specialties among Connecticut providers

Connecticut providers

Acute Care Nurse Practitioner share within Connecticut

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

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).

STEPHANIE MERCK, A.P.R.N. appears in the CMS NPPES registry as a Acute Care Nurse Practitioner provider holding A.P.R.N. credentials at 15 CORPORATE DR, TRUMBULL, CT, 06611, with a listed phone of (203) 452-2446. NPI 1235158932 was issued on 07/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MERCK 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 101 prescription claims written by this provider, covering 63 Medicare beneficiaries and totaling roughly $9K in drug spend, split 21% brand-name and 79% generic by claim count. 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

15 CORPORATE DR
TRUMBULL, CT 06611

Provider Details

NPI 1235158932
Specialty Acute Care Nurse Practitioner
Credentials A.P.R.N.
Gender Female
NPI Issued 07/19/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for STEPHANIE MERCK, A.P.R.N.. Source: openpaymentsdata.cms.gov.

Total received

$14

Largest payer

Genentech USA, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

STEPHANIE MERCK, A.P.R.N. — brand share 21.0%
Specialty average (est.)

21% brand-name claims vs 79% generic, on 101 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.

101
Total Claims
$9K
Total Drug Cost
63
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
133
Total Day Supply
2,769
Brand vs Generic
21% brand / 79% generic
Brand Drug Cost
$7K
Generic Drug Cost
$1K
Antibiotic Claims
23

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
0.87
Gender Split
62% female / 38% male

Acute Care Nurse Practitioner Overview

How STEPHANIE MERCK, A.P.R.N. 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

STEPHANIE MERCK, A.P.R.N.'s 101 claims are below the specialty average of 576.

Nearby Acute Care Nurse Practitioner Providers in Connecticut

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

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

Frequently Asked Questions

What is STEPHANIE MERCK, A.P.R.N.'s specialty?
STEPHANIE MERCK, A.P.R.N. specializes in Acute Care Nurse Practitioner and practices in TRUMBULL, Connecticut. Credentials: A.P.R.N..
How much does STEPHANIE MERCK, A.P.R.N. prescribe under Medicare Part D?
In 2023, STEPHANIE MERCK, A.P.R.N. wrote 101 Medicare Part D claims totaling $9K in drug costs for 63 beneficiaries.
Where is STEPHANIE MERCK, A.P.R.N. located?
STEPHANIE MERCK, A.P.R.N. is located at 15 CORPORATE DR, TRUMBULL, CT, 06611. Phone: (203) 452-2446.
What is STEPHANIE MERCK, A.P.R.N.'s NPI number?
STEPHANIE MERCK, A.P.R.N.'s National Provider Identifier (NPI) is 1235158932, issued on 07/19/2006.
Does STEPHANIE MERCK, A.P.R.N. prescribe more brand-name or generic drugs?
STEPHANIE MERCK, A.P.R.N.'s prescribing is 21% brand-name and 79% generic drugs by claim count, with $7K in brand drug costs.
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.
Does STEPHANIE MERCK, A.P.R.N. accept Medicare?
STEPHANIE MERCK, A.P.R.N. appears in CMS Medicare data with 101 Part D claims and 63 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHANIE MERCK, A.P.R.N.'s credentials?
STEPHANIE MERCK, A.P.R.N.'s NPI is 1235158932 with credentials A.P.R.N.. 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