Gillian G. Lettre, NP
Psychiatric/Mental Health Nurse Practitioner · Grafton, WI
Gillian G. Lettre, NP is a psychiatric/mental health nurse practitioner with a practice address in Grafton, Wisconsin, and NPI 1194471292, issued on Feb 28, 2022. Check the license (Wisconsin 11857, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gillian G. Lettre
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 11857 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1225 12TH Ave, Grafton, WI 53024
- Phone
- (833) 711-1930
- Enumerated
- Feb 28, 2022
- Record last updated
- Dec 18, 2024
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 710 in Wisconsin → Look up another NPI →
Also registered at 1225 12TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Reuel Muiruri, NPPsychiatric/Mental Health Nurse Practitioner1225510001
Verify Gillian G. Lettre in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 11857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024
2,127 Medicare Part D claims for 119 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Lorazepam106 claims
- Sertraline Hcl106 claims
- Buspirone Hcl102 claims
- Aripiprazole100 claims
- Quetiapine Fumarate88 claims
- Clonazepam84 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gillian G. Lettre among 710 psychiatric/mental health nurse practitioner records in Wisconsin
Gillian G. Lettre, NP is one of 710 psychiatric/mental health nurse practitioner records with a practice address in Wisconsin. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 59% of them.
- NPI issued2022 · 59% of these records are older, 32% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2024 · 20% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in Wisconsin
There are 710 psychiatric/mental health nurse practitioner records in Wisconsin.
All 710 in Wisconsin → Every provider in Grafton → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Lolita Hansen, PMHNP-BCGrafton, WI 530241255010559
- Reuel Muiruri, NPGrafton, WI 530241225510001
- Latoya Walker, PMHNPGermantown, WI 530221487459897
- Deirdre Cardosa, PMHNPHartland, WI 530291982565628
- Colleen Worth, DNP, APNP, FNP-BCHartland, WI 530291417247040
- Therese Alm, APNPDelafield, WI 530181104394535
- Maureen Brewster, MSN, APNP, PMHNP-BCDelafield, WI 530181992545289
- Catherine Anderson, APNPHubertus, WI 530331801884317
Common questions
What is Gillian G. Lettre, NP's NPI number?
Gillian G. Lettre, NP's National Provider Identifier (NPI) is 1194471292, issued on Feb 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Gillian G. Lettre, NP located?
The NPPES record lists a practice address at 1225 12TH Ave, Grafton, WI, 53024. Phone: (833) 711-1930. Providers update this record themselves, so call before visiting.
How can I verify Gillian G. Lettre, NP's license?
NPPES lists Wisconsin license number 11857, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Gillian G. Lettre, NP prescribe under Medicare Part D?
In 2024, Gillian G. Lettre, NP had 2,127 Medicare Part D claims for 119 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.