2026 NPPES data Adult Health Nurse Practitioner NPI 1881644631 N.P.
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SUSAN IZZO, N.P.

Adult Health Nurse Practitioner in VERNON, 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
5K
Medicare Part D claims · 474 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$4.0K
227 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SUSAN IZZO, N.P. filed 5,115 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in VERNON, Connecticut, prescribing 85% generic.

5K
Part D claims, 2023
85%
generic prescribing
$4.0K
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.

SUSAN IZZO, N.P.'s Medicare Part D volume vs every U.S. prescriber

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

5,115 Top 6% higher than 94% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 SUSAN IZZO, N.P.?

Quality data not reported

NPI registry status

Active

Issued 05/11/2006

NPI 1881644631

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

5,115 326% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

Specialty distribution in Connecticut

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

Connecticut providers

Adult Health Nurse Practitioner share within Connecticut

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

Specialty board-certification context

Estimated specialty board-certified rate — Adult Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adult Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Adult Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Health 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).

SUSAN IZZO, N.P. appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding N.P. credentials at 520 HARTFORD TPKE, VERNON, CT, 06066, with a listed phone of (860) 872-8321. NPI 1881644631 was issued on 05/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what IZZO 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 5,115 prescription claims written by this provider, covering 474 Medicare beneficiaries and totaling roughly $855K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 1.9%. 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.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 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

520 HARTFORD TPKE
VERNON, CT 06066

Provider Details

NPI 1881644631
Specialty Adult Health Nurse Practitioner
Credentials N.P.
Gender Female
NPI Issued 05/11/2006

Hospital and facility affiliations

Facilities where SUSAN IZZO, N.P. 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.

PROSPECT CT MEDICAL FOUNDATION INC
MANCHESTER, 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).

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 SUSAN IZZO, N.P.. Source: openpaymentsdata.cms.gov.

Total received

$4.0K

Largest payer

ABBVIE 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

SUSAN IZZO, N.P. — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 5,115 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.

5,115
Total Claims
$855K
Total Drug Cost
474
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,408
Total Day Supply
334,263
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$746K
Generic Drug Cost
$106K
Opioid Claims
95 (1.9% rate)
Antibiotic Claims
76

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.15
Gender Split
72% female / 28% male
Age Distribution
<65: 81, 65-74: 227, 75-84: 120, 85+: 46

Top Prescribed Drugs (Medicare Part D)

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

What SUSAN IZZO, N.P. 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
450
Lisinopril
211
Amlodipine Besylate
186
Levothyroxine Sodium
172
Losartan Potassium
171
Metformin Hcl
151
Hydrochlorothiazide
148
Metoprolol Succinate
129
Escitalopram Oxalate
119
Gabapentin
116

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

Adult Health Nurse Practitioner Overview

How SUSAN IZZO, N.P. fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

SUSAN IZZO, N.P.'s 5,115 claims are above the specialty average of 1,201.

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 IZZO.

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

Frequently Asked Questions

What is SUSAN IZZO, N.P.'s specialty?
SUSAN IZZO, N.P. specializes in Adult Health Nurse Practitioner and practices in VERNON, Connecticut. Credentials: N.P..
How much does SUSAN IZZO, N.P. prescribe under Medicare Part D?
In 2023, SUSAN IZZO, N.P. wrote 5,115 Medicare Part D claims totaling $855K in drug costs for 474 beneficiaries.
Where is SUSAN IZZO, N.P. located?
SUSAN IZZO, N.P. is located at 520 HARTFORD TPKE, VERNON, CT, 06066. Phone: (860) 872-8321.
What is SUSAN IZZO, N.P.'s NPI number?
SUSAN IZZO, N.P.'s National Provider Identifier (NPI) is 1881644631, issued on 05/11/2006.
Does SUSAN IZZO, N.P. prescribe more brand-name or generic drugs?
SUSAN IZZO, N.P.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $746K in brand drug costs.
Does SUSAN IZZO, N.P. prescribe opioids?
Yes, SUSAN IZZO, N.P. had 95 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 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 SUSAN IZZO, N.P. prescribe most often?
Based on 2023 Medicare Part D data, SUSAN IZZO, N.P.'s most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SUSAN IZZO, N.P. accept Medicare?
SUSAN IZZO, N.P. appears in CMS Medicare data with 5,115 Part D claims and 474 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUSAN IZZO, N.P.'s credentials?
SUSAN IZZO, N.P.'s NPI is 1881644631 with credentials N.P.. 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