NPPES file of Aug 9, 2026

Karissa Marie Weaver, PMHNP

Psychiatric/Mental Health Clinical Nurse Specialist · Sioux City, IA

Karissa Marie Weaver, PMHNP is a psychiatric/mental health clinical nurse specialist with a practice address in Sioux City, Iowa, and NPI 1285490896, issued on Feb 22, 2024. Check the license (Iowa G178290, 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
1285490896
Name
Karissa Marie Weaver
Credential
PMHNP
Primary taxonomy
Psychiatric/Mental Health Clinical Nurse Specialist 364SP0808X
License number
G178290 IA
Self-reported in NPPES; status is on the state search
Practice location
625 Court St, Sioux City, IA 51101
Phone
(712) 252-3871
Enumerated
Feb 22, 2024
Record last updated
Feb 23, 2024
Medicare enrollment
Enrolled (PECOS I20240508002592); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 625 Court St

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

  1. Nesrin Abu Ata, M.D.Psychiatry Physician1528297660
  2. Kendra Armistead, LMSWSocial Worker1285313726
  3. Jon Beringer, LMSWSocial Worker1780091934
  4. Travis Bowers, MAClinical Social Worker1699140681
  5. Ronald Brinck, M.D.Psychiatry Physician1457315285
  6. Kemi Brown, LMSWSocial Worker1366272353

Verify Karissa Marie Weaver 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 G178290
    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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66% fewer Medicare Part D claims than the average psychiatric/mental health clinical nurse specialist in 2024

357 Medicare Part D claims for 36 beneficiaries, against an average of 1,054 among the 390 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Karissa Weaver357
  2. Specialty average1,054

Most prescribed

  1. Quetiapine Fumarate26 claims
  2. Sertraline Hcl22 claims
  3. Lorazepam20 claims
  4. Topiramate17 claims
  5. Buspirone Hcl15 claims
  6. Caplyta15 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: $1,315.03

104 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 285 providers of this specialty with any payment received $924.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karissa Weaver$1,315.03
  2. Specialty average$924.95

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

Bills Medicare through one group practice

  1. Siouxland Mental Health Services IncSioux City, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Psychiatric/Mental Health Clinical Nurse Specialist providers in Iowa

There are 9 psychiatric/mental health clinical nurse specialist records in Iowa.

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

  1. Joada Best, ARNPSioux City, IA 511011619153137
  2. Cassidy Carr, PMHNP-BCSioux City, IA 511011871052472
  3. Danika Hansen, PMHNPSioux City, IA 511011720698335
  4. Melissa Konken, ARNPSioux City, IA 511011902358443
  5. Ricardo Osorio, NPSioux City, IA 511011093272668
  6. Victoria Woodbury, ARNPFort Madison, IA 526271417925579
  7. Rylee Nowak, LPNMuscatine, IA 527611376010413
  8. Maryann Kapacinskas, ARNPDavenport, IA 528041386977387

Common questions

What is Karissa Marie Weaver, PMHNP's NPI number?

Karissa Marie Weaver, PMHNP's National Provider Identifier (NPI) is 1285490896, issued on Feb 22, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Karissa Marie Weaver, PMHNP located?

The NPPES record lists a practice address at 625 Court St, Sioux City, IA, 51101. Phone: (712) 252-3871. Providers update this record themselves, so call before visiting.

How can I verify Karissa Marie Weaver, PMHNP's license?

NPPES lists Iowa license number G178290, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Karissa Marie Weaver, PMHNP prescribe under Medicare Part D?

In 2024, Karissa Marie Weaver, PMHNP had 357 Medicare Part D claims for 36 beneficiaries; the average among psychiatric/mental health clinical nurse specialist prescribers was 1,054. 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.