2026 NPPES data Primary Care Nurse Practitioner NPI 1194334359 APRN
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Nelson Leach, APRN

Primary Care Nurse Practitioner in Milford, Connecticut. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,138 in Primary Care Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
932
Medicare Part D claims · 287 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
29.4/100
▼ 54 pts below national avg 83.1 · Below average
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Nelson Leach, APRN reported a CMS MIPS final score of 29.4/100 - below the 83.1 national average - and filed 932 Medicare Part D claims in 2023.

29.4/100
MIPS score · -54 vs avg
932
Part D claims, 2023
96%
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.

Nelson Leach, APRN's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

29 3rd percentile higher than 3% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). This entry sits in this band. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Nelson Leach, APRN sits

This provider among primary care nurse practitioner peers

Across the 958 primary care nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Nelson Leach, APRN writes more Part D claims than 58% of them and scores higher on MIPS quality than 2% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 62Nelson Leach, APRN-Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 2
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one primary care nurse practitioner peer from a representative sample of 60; the gold marker is Nelson Leach, APRN. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Nelson Leach, APRN?

Below national average

NPI registry status

Active

Issued 07/23/2020

NPI 1194334359

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,138 US NPIs in this specialty

Medicare Part D claims

932 32% vs specialty avg

2023 prescription claims

Specialty avg: 1,363

MIPS final score

29.4/100 53.7 pts vs avg

Below average band

vs 83.1 national avg

Specialty distribution in Connecticut

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

Connecticut providers
Clinical Social Worker - 8.4%Clinical Social Worker8.4%Student in an Organized Health Care Education/Training Program - 7.7%Student in an Organized Health Care Education/Training Program7.7%Physical Therapist - 4.2%Physical Therapist4.2%Pharmacist - 3.9%Pharmacist3.9%Internal Medicine Physician - 3.4%Internal Medicine Physician3.4%Mental Health Counselor - 3.2%Mental Health Counselor3.2%Primary Care Nurse Practitioner - 0.2%Primary Care Nurse Practitioner0.2%
Largest specialties in Connecticut (% of in-state providers)

Medicare quality performance, MIPS

Nelson Leach, APRN's 2023 MIPS final score plotted against the Primary Care Nurse Practitioner national average

Below national average
MIPS Final Score
29.4/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Primary Care Nurse Practitioner) - 29.4/100 vs national avg 83.1

0%100%National avg83%29.4%
MIPS final score (Primary Care Nurse Practitioner) - 29.4/100 vs national avg 83.1

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).

Nelson Leach, APRN appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding APRN credentials at 38 BERWYN ST, Milford, CT, 06461, with a listed phone of (203) 571-3233. NPI 1194334359 was issued on 07/23/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Leach 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 932 prescription claims written by this provider, covering 287 Medicare beneficiaries and totaling roughly $38K in drug spend, split 4% brand-name and 96% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 29.4/100 for the 2023 performance year (Quality 0, Cost 97.8), compared with the national average of 83.1.

Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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

38 BERWYN ST
Milford, CT 06461

Provider Details

NPI 1194334359
Specialty Primary Care Nurse Practitioner
Credentials APRN
Gender Male
NPI Issued 07/23/2020

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

29.3535
Final Score
Avg: 83.1
0
Quality
97.845
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where Nelson Leach, 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.

Blues And Blahs PLLC
Milford, CT

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 · Generic-heavy

Nelson Leach, APRN - brand share 4.0%
Primary Care Nurse Practitioner average

4% brand-name claims vs 96% generic, on 932 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.

932
Total Claims
$38K
Total Drug Cost
287
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
932
Total Day Supply
18,800
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$15K
Generic Drug Cost
$22K

Patient Demographics

Average Patient Age
80.9 years
Avg HCC Risk Score
2.62
Gender Split
63% female / 37% male
Age Distribution
<65: 20, 65-74: 68, 75-84: 74, 85+: 125

Top Prescribed Drugs (Medicare Part D)

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

What Nelson Leach, APRN prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Trazodone Hcl
243
Lorazepam
142
Olanzapine
48
Clonazepam
44
Sertraline Hcl
43
Quetiapine Fumarate
38
Venlafaxine Hcl Er
Venlafaxine Hcl
36
Mirtazapine
35
Aripiprazole
33
Diazepam
26

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

Primary Care Nurse Practitioner Overview

How Nelson Leach, APRN fits within the Primary Care Nurse Practitioner landscape nationally.

10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider

Nelson Leach, APRN's 932 claims are below the specialty average of 1,363.

Nearby Primary Care Nurse Practitioner Providers in Connecticut

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Connecticut medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Primary Care Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Nelson Leach, APRN's specialty?
Nelson Leach, APRN specializes in Primary Care Nurse Practitioner and practices in Milford, Connecticut. Credentials: APRN.
How much does Nelson Leach, APRN prescribe under Medicare Part D?
In 2023, Nelson Leach, APRN wrote 932 Medicare Part D claims totaling $38K in drug costs for 287 beneficiaries.
What is Nelson Leach, APRN's Medicare quality score?
Nelson Leach, APRN has a CMS MIPS Final Score of 29.4/100 (Quality: 0, Cost: 97.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Nelson Leach, APRN located?
Nelson Leach, APRN is located at 38 BERWYN ST, Milford, CT, 06461. Phone: (203) 571-3233.
What is Nelson Leach, APRN's NPI number?
Nelson Leach, APRN's National Provider Identifier (NPI) is 1194334359, issued on 07/23/2020.
Does Nelson Leach, APRN prescribe more brand-name or generic drugs?
Nelson Leach, APRN's prescribing is 4% brand-name and 96% generic drugs by claim count, with $15K in brand drug costs.
How many Primary Care Nurse Practitioner providers are there in the US?
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does Nelson Leach, APRN prescribe most often?
Based on 2023 Medicare Part D data, Nelson Leach, APRN's most frequently prescribed drugs include Trazodone Hcl, Lorazepam, Olanzapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nelson Leach, APRN accept Medicare?
Nelson Leach, APRN appears in CMS Medicare data with 932 Part D claims and 287 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nelson Leach, APRN's credentials?
Nelson Leach, APRN's NPI is 1194334359 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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

Compiled from official public sources by the PlainDoctor editorial team.