Registry data as of Aug 27, 2026
2026 NPPES data Medical-Surgical Registered Nurse NPI 1770602864 NP
Verify on CMS →

Peggy McCormack, NP

Medical-Surgical Registered Nurse in Manhasset, New York.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,721 in Medical-Surgical Registered Nurse, 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
853
Medicare Part D claims · 94 beneficiaries · Medical-Surgical Registered Nurse avg: 941

What the federal data shows

Peggy McCormack, NP filed 853 Medicare Part D claims in 2024 as a Medical-Surgical Registered Nurse in Manhasset, New York.

853
Part D claims, 2024
≥72nd
pct by Part D claim volume (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 Peggy McCormack, NP

Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1770602864), first enumerated 03/28/2007.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 853 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • 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.

Compare McCormack with other Medical-Surgical Registered Nurse providers

Same primary specialty, same federal CMS NPPES roster.

Also enrolled in New York

Other specialties in Manhasset: Student in an Organized Health Care Education/Training Program (625) · Physician Assistant (178) · Emergency Medicine Physician (112) · Adult Health Nurse Practitioner (103)

CMS NPPES provider registry desk

NPI 1770602864 · Medical-Surgical Registered Nurse

NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM

  • NPI-10 1770602864
  • ENUM-MID 2007
  • TAX-NARROW 3,721
  • RX-LIGHT 853
  • BOOK-THIN 352 in New York
  • PHOTO-ENUM Robert Johnston, RN,… · 2007

Peggy McCormack, NP's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2024, across all CMS prescribers nationally

853 ≥ 72nd percentile 72% of 1,416,883 prescribers are in lower value bands

0–200: 679,947 prescribers (48%). Below this entry. 200–400: 188,835 prescribers (13%). Below this entry. 400–600: 95,866 prescribers (7%). Below this entry. 600–800: 60,107 prescribers (4%). Below this entry. 800–1,000: 43,043 prescribers (3%). This entry sits in this band. 1,000–1,200: 33,612 prescribers (2%). Above this entry. 1,200–1,400: 27,889 prescribers (2%). Above this entry. 1,400–1,600: 23,183 prescribers (2%). Above this entry. 1,600–1,800: 19,917 prescribers (1%). Above this entry. 1,800–2,000: 17,585 prescribers (1%). Above this entry. 2K+: 226,899 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.

The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.

Source CMS Medicare Part D Prescriber Public Use File · 2024

What does the federal data show about Peggy McCormack, NP?

Quality data not reported

NPI registry status

Active

Issued 03/28/2007

NPI 1770602864

Primary specialty

Medical-Surgical Registered Nurse

Niche

3,721 US NPIs in this specialty

Medicare Part D claims

853 9% vs specialty avg

2024 prescription claims

Specialty avg: 941

Specialty distribution in New York

How Medical-Surgical Registered Nurse compares to other specialties among New York providers

New York providers
Student in an Organized Heal…8%Registered Nurse5.2%Clinical Social Worker4.9%Social Worker4.5%Speech-Language Pathologist4.5%Licensed Practical Nurse4.3%Medical-Surgical Registered …0.1%
Largest specialties in New York (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Medical-Surgical Registered Nurse. Verify directly:

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

300 COMMUNITY DR
Manhasset, NY 11030

Provider Details

NPI 1770602864
Specialty Medical-Surgical Registered Nurse
Credentials NP
Gender Female
NPI Issued 03/28/2007

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

853
Total Claims
$88K
Total Drug Cost
94
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,889.033
Total Day Supply
54,742
Generic Drug Cost
$19K
Opioid Claims
22 (2.6% rate)
Antibiotic Claims
40

Patient Demographics

Average Patient Age
88.1 years
Avg HCC Risk Score
2.18
Gender Split
73% female / 27% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Peggy McCormack, NP prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Atorvastatin Calcium
51
Amlodipine Besylate
50
Nystatin
35
Eliquis
Apixaban
30
Sertraline Hcl
29
Pantoprazole Sodium
24
Levothyroxine Sodium
21
Metoprolol Succinate
21
Metoprolol Tartrate
21
Donepezil Hcl
20

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

Medical-Surgical Registered Nurse Overview

How Peggy McCormack, NP fits within the Medical-Surgical Registered Nurse landscape nationally.

3,721
Medical-Surgical Registered Nurse Providers in US
54
States with Medical-Surgical Registered Nurse
941
Avg Claims per Provider

Peggy McCormack, NP's 853 claims are below the specialty average of 941.

Nationwide Medical-Surgical Registered Nurse peers with similar MIPS or enrollment year

Two federal-record peer sets for McCormack, both outside New York so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2007)

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

Nearby Medical-Surgical Registered Nurse Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as McCormack.

One of 352 Medical-Surgical Registered Nurse providers enrolled in New York, 11 are shown on this page.

Compare Medical-Surgical Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is Peggy McCormack, NP's specialty? ▼
Peggy McCormack, NP specializes in Medical-Surgical Registered Nurse and practices in Manhasset, New York. Credentials: NP.
How much does Peggy McCormack, NP prescribe under Medicare Part D? ▼
In 2024, Peggy McCormack, NP wrote 853 Medicare Part D claims totaling $88K in drug costs for 94 beneficiaries.
Where is Peggy McCormack, NP located? ▼
Peggy McCormack, NP is located at 300 COMMUNITY DR, Manhasset, NY, 11030. Phone: (516) 562-4970.
What is Peggy McCormack, NP's NPI number? ▼
Peggy McCormack, NP's National Provider Identifier (NPI) is 1770602864, issued on 03/28/2007.
Does Peggy McCormack, NP prescribe opioids? ▼
Yes, Peggy McCormack, NP had 22 opioid claims in 2024 with an opioid prescribing rate of 2.6%.
How many Medical-Surgical Registered Nurse providers are there in the US? ▼
There are 3,721 Medical-Surgical Registered Nurse providers across 54 states in the US. The average Medical-Surgical Registered Nurse provider writes 941 Medicare Part D claims per year.
What drugs does Peggy McCormack, NP prescribe most often? ▼
Based on 2024 Medicare Part D data, Peggy McCormack, NP's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Nystatin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Peggy McCormack, NP accept Medicare? ▼
Peggy McCormack, NP appears in CMS Medicare data with 853 Part D claims and 94 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Peggy McCormack, NP's credentials? ▼
Peggy McCormack, NP's NPI is 1770602864 with credentials NP. 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 (2024). 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 August 2026 (NPPES) / 2024 (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

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 September 2026.