NPPES file of Aug 9, 2026

Trista Louise Grossnickle, PMHNP

Psychiatric/Mental Health Nurse Practitioner · Clarinda, IA

Trista Louise Grossnickle, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Clarinda, Iowa, and NPI 1346993763, issued on Jan 27, 2022. Check the license (Iowa G167240, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346993763
Name
Trista Louise Grossnickle
Credential
PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
G167240 IA
Self-reported in NPPES; status is on the state search
Practice location
400 W Glenn Miller Dr, Clarinda, IA 51632
Phone
(712) 542-8354
Enumerated
Jan 27, 2022
Record last updated
Jan 27, 2022
Fax
(712) 517-1192
Medicare enrollment
Enrolled (PECOS I20220302001732); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 400 W Glenn Miller Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shelley Clayton, LCSWClinical Social Worker1033735352

Verify Trista Louise Grossnickle in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license G167240
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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24% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

688 Medicare Part D claims for 37 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Trista Grossnickle688
  2. Specialty average906

Most prescribed

  1. Bupropion Xl52 claims
  2. Sertraline Hcl48 claims
  3. Clonazepam37 claims
  4. Quetiapine Fumarate37 claims
  5. Trazodone Hcl37 claims
  6. Lamotrigine32 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.

Industry payments in 2024: $168.37

10 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Trista Grossnickle$168.37
  2. Specialty average$1,027.77

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Clarinda Regional Health CenterClarinda, IA · Critical Access Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Trista Louise Grossnickle among 612 psychiatric/mental health nurse practitioner records in Iowa

Trista Louise Grossnickle, PMHNP is one of 612 psychiatric/mental health nurse practitioner records with a practice address in Iowa. 79% 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 62% of them.

  • NPI issued2022 · 62% of these records are older, 31% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2021 · median 2021 among the 398 with a school on file
  • Record last updated2022 · 28% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 psychiatric/mental health nurse practitioner records list a practice address in Clarinda

They are 5 of the 115 NPPES records with a practice address in Clarinda, and 612 psychiatric/mental health nurse practitioner records in Iowa.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Kala Clark, PMHNPClarinda, IA 516321851161228
  2. Stacey Hess, PMHNPClarinda, IA 516321508623778
  3. Benn Rayment, ARNPClarinda, IA 516321891326088
  4. Kimberly Schoonover, ARNPClarinda, IA 516321922710466
  5. Holly Logan, PMHNP-BCShenandoah, IA 516011295580041
  6. Crystal Mick, ARNP, PMHNP-BCShenandoah, IA 516011801566054
  7. Rose Walter, ARNPShenandoah, IA 516011649363417
  8. Bridget Nore, DNPWoodbine, IA 515791306508262

Common questions

What is Trista Louise Grossnickle, PMHNP's NPI number?

Trista Louise Grossnickle, PMHNP's National Provider Identifier (NPI) is 1346993763, issued on Jan 27, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Trista Louise Grossnickle, PMHNP located?

The NPPES record lists a practice address at 400 W Glenn Miller Dr, Clarinda, IA, 51632. Phone: (712) 542-8354. Providers update this record themselves, so call before visiting.

How can I verify Trista Louise Grossnickle, PMHNP's license?

NPPES lists Iowa license number G167240, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Trista Louise Grossnickle, PMHNP prescribe under Medicare Part D?

In 2024, Trista Louise Grossnickle, PMHNP had 688 Medicare Part D claims for 37 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.