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2026 NPPES data Adult Health Nurse Practitioner NPI 1134546989 APRN
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Leah Whelan, APRN

Adult Health Nurse Practitioner in New Haven, 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 29,519 in Adult Health 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
486
Medicare Part D claims · 160 beneficiaries · Adult Health Nurse Practitioner avg: 1K
MIPS score
73.6/100
▼ 10 pts below national avg 83.5 · Mid-tier
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Compiled from official public sources by the editorial process.

What the federal data shows

Leah Whelan, APRN reported a CMS MIPS final score of 73.6/100 - below the 83.5 national average - and filed 486 Medicare Part D claims in 2023.

73.6/100
MIPS score · -10 vs avg
486
Part D claims, 2023
≥11th
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Leah Whelan, APRN

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1134546989), first enumerated 03/18/2014.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 486 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 73.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1134546989 · Adult Health Nurse Practitioner

NPI-10 · ENUM-MID · TAX-MID · MIPS-BELOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1134546989
  • ENUM-MID 2014
  • TAX-MID 30K Adult Health
  • MIPS-BELOW 73.6/100
  • RX-LIGHT 486
  • BOOK-LIGHT 557 in Connecticut
  • PHOTO-FINISH Kristen Crowley · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Leah Whelan, APRN's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

74 ≥ 11th percentile 11% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Leah Whelan, APRN sits

This provider among adult health nurse practitioner peers

Across the 4,201 adult health nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Leah Whelan, APRN writes more Part D claims than 54% of them and scores higher on MIPS quality than 8% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.448.873.297.7Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 3Leah Whelan, APRN, Part D claim volume, percentile in specialty: 54 · MIPS quality, percentile: 8
Part D claim volume vs MIPS quality, by specialty percentile

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

What does the federal data show about Leah Whelan, APRN?

Below national average

NPI registry status

Active

Issued 03/18/2014

NPI 1134546989

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,519 US NPIs in this specialty

Medicare Part D claims

486 60% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

MIPS final score

73.6/100 9.9 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Connecticut

How Adult Health Nurse Practitioner compares to other specialties among Connecticut providers

Connecticut providers
Clinical Social Worker8.4%Student in an Organized Heal…7.7%Physical Therapist4.2%Pharmacist3.9%Internal Medicine Physician3.4%Mental Health Counselor3.2%Adult Health Nurse Practitio…0.7%
Largest specialties in Connecticut (% of in-state providers)

Medicare quality performance, MIPS

Leah Whelan, APRN's 2023 MIPS final score plotted against the Adult Health Nurse Practitioner national average

Below national average
MIPS Final Score
73.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%73.6%
MIPS final score (Adult Health Nurse Practitioner) - 73.6/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

1308 CHAPEL ST
New Haven, CT 06511
(203) 865-5111

Provider Details

NPI 1134546989
Specialty Adult Health Nurse Practitioner
Credentials APRN
Gender Female
NPI Issued 03/18/2014

CMS Quality Score (MIPS)

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

73.5637
Final Score
Measured-score avg: 83.5
75.8435
Quality
51.4318
Cost
74
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

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

486
Total Claims
$59K
Total Drug Cost
160
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,159
Total Day Supply
33,901
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.10
Gender Split
68% female / 32% male

Top Prescribed Drugs (Medicare Part D)

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

What Leah Whelan, 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
Atorvastatin Calcium
 46
Levothyroxine Sodium
 33
Lisinopril
 23
Simvastatin
 23
Hydrochlorothiazide
 20
Rosuvastatin Calcium
 18
Losartan Potassium
 16
Amlodipine Besylate
 13
Bupropion Xl
Bupropion Hcl
12
Metoprolol Succinate
 12

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

More Adult Health Nurse Practitioner in CT → All providers in Connecticut → Compare specialties →

Adult Health Nurse Practitioner Overview

How Leah Whelan, APRN fits within the Adult Health Nurse Practitioner landscape nationally.

29,519
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

Leah Whelan, APRN's 486 claims are below the specialty average of 1,201.

Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year

Two federal-record peer sets for Whelan, both outside Connecticut so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (73.6 here).

Kristen Crowley 73.6 KS Caitlin McElroy-Cox 73.6 NY Stephanie Murano 73.6 NY Ashley Petkis 73.6 MA

Same NPPES enumeration year (2014)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Shannon Jeffery Albuquerque, NM Jinu Thomas Sugar Land, TX Robyn Packer Nashville, TN Caryanne Sallinger Aurora, CO

Nearby Adult Health Nurse Practitioner Providers in Connecticut

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

One of 557 Adult Health Nurse Practitioner providers enrolled in Connecticut, 5 are shown here.

Dr. Nanette Alexander
APRN
Glastonbury, CT
Dr. Dina Almeida-McGlotten
APRN
Southington, CT
Dr. Mary Ellen Amerighi
APRN
Ridgefield, CT
Dr. Elizabeth Anderson
A.P.R.N.
Hartford, CT
Dr. Faith Andrews
APRN
Woodbury, CT

Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is Leah Whelan, APRN's specialty? ▼
Leah Whelan, APRN specializes in Adult Health Nurse Practitioner and practices in New Haven, Connecticut. Credentials: APRN.
How much does Leah Whelan, APRN prescribe under Medicare Part D? ▼
In 2023, Leah Whelan, APRN wrote 486 Medicare Part D claims totaling $59K in drug costs for 160 beneficiaries.
What is Leah Whelan, APRN's Medicare quality score? ▼
Leah Whelan, APRN has a CMS MIPS Final Score of 73.6/100 (Quality: 75.8, Cost: 51.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Leah Whelan, APRN located? ▼
Leah Whelan, APRN is located at 1308 CHAPEL ST, New Haven, CT, 06511. Phone: (203) 865-5111.
What is Leah Whelan, APRN's NPI number? ▼
Leah Whelan, APRN's National Provider Identifier (NPI) is 1134546989, issued on 03/18/2014.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,519 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does Leah Whelan, APRN prescribe most often? ▼
Based on 2023 Medicare Part D data, Leah Whelan, APRN's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Leah Whelan, APRN accept Medicare? ▼
Leah Whelan, APRN appears in CMS Medicare data with 486 Part D claims and 160 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Leah Whelan, APRN's credentials? ▼
Leah Whelan, APRN's NPI is 1134546989 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

View source datasets and methodology notes
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 editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.