2026 NPPES data Nurse Practitioner NPI 1194471292 NP
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GILLIAN LETTRE, NP

Nurse Practitioner in GRAFTON, Wisconsin. 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
1K
Medicare Part D claims · 182 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

GILLIAN LETTRE, NP filed 1,343 Medicare Part D claims in 2023 as a Nurse Practitioner in GRAFTON, Wisconsin, prescribing 97% generic.

1K
Part D claims, 2023
97%
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.

GILLIAN LETTRE, NP's Medicare Part D volume vs every U.S. prescriber

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

1,343 Top 21% higher than 79% 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%). This entry sits in this band. 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 GILLIAN LETTRE, NP?

Quality data not reported

NPI registry status

Active

Issued 02/28/2022

NPI 1194471292

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

1,343 24% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

Specialty distribution in Wisconsin

How Nurse Practitioner compares to other specialties among Wisconsin providers

Wisconsin providers

Nurse Practitioner share within Wisconsin

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

Specialty board-certification context

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

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

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

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

GILLIAN LETTRE, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 1225 12TH AVE, GRAFTON, WI, 53024, with a listed phone of (833) 711-1930. NPI 1194471292 was issued on 02/28/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LETTRE 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 1,343 prescription claims written by this provider, covering 182 Medicare beneficiaries and totaling roughly $75K in drug spend, split 3% brand-name and 97% 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.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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

1225 12TH AVE
GRAFTON, WI 53024

Provider Details

NPI 1194471292
Specialty Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 02/28/2022

Brand vs generic prescribing mix · Generic-heavy

GILLIAN LETTRE, NP — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 1,343 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.

1,343
Total Claims
$75K
Total Drug Cost
182
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,059
Total Day Supply
60,417
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$28K
Generic Drug Cost
$47K

Patient Demographics

Average Patient Age
60.1 years
Avg HCC Risk Score
1.41
Gender Split
59% female / 41% male
Age Distribution
<65: 102, 65-74: 53, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What GILLIAN LETTRE, NP 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
Sertraline Hcl
87
Duloxetine Hcl
76
Hydroxyzine Hcl
69
Alprazolam
64
Risperidone
61
Quetiapine Fumarate
60
Buspirone Hcl
57
Trazodone Hcl
56
Lamotrigine
52
Mirtazapine
52

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

Nurse Practitioner Overview

How GILLIAN LETTRE, NP fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

GILLIAN LETTRE, NP's 1,343 claims are above the specialty average of 1,084.

Nearby Nurse Practitioner Providers in Wisconsin

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

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

Frequently Asked Questions

What is GILLIAN LETTRE, NP's specialty?
GILLIAN LETTRE, NP specializes in Nurse Practitioner and practices in GRAFTON, Wisconsin. Credentials: NP.
How much does GILLIAN LETTRE, NP prescribe under Medicare Part D?
In 2023, GILLIAN LETTRE, NP wrote 1,343 Medicare Part D claims totaling $75K in drug costs for 182 beneficiaries.
Where is GILLIAN LETTRE, NP located?
GILLIAN LETTRE, NP is located at 1225 12TH AVE, GRAFTON, WI, 53024. Phone: (833) 711-1930.
What is GILLIAN LETTRE, NP's NPI number?
GILLIAN LETTRE, NP's National Provider Identifier (NPI) is 1194471292, issued on 02/28/2022.
Does GILLIAN LETTRE, NP prescribe more brand-name or generic drugs?
GILLIAN LETTRE, NP's prescribing is 3% brand-name and 97% generic drugs by claim count, with $28K in brand drug costs.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does GILLIAN LETTRE, NP prescribe most often?
Based on 2023 Medicare Part D data, GILLIAN LETTRE, NP's most frequently prescribed drugs include Sertraline Hcl, Duloxetine Hcl, Hydroxyzine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GILLIAN LETTRE, NP accept Medicare?
GILLIAN LETTRE, NP appears in CMS Medicare data with 1,343 Part D claims and 182 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GILLIAN LETTRE, NP's credentials?
GILLIAN LETTRE, NP's NPI is 1194471292 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

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