NPPES file of Aug 9, 2026

Cynthia Ann Guthmiller, ARNP/ PMHNP

Psychiatric/Mental Health Nurse Practitioner · Sioux City, IA

Cynthia Ann Guthmiller, ARNP/ PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Sioux City, Iowa, and NPI 1790755395, issued on Jan 25, 2006. Check the license (Iowa G159714, 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
1790755395
Name
Cynthia Ann Guthmiller
Credential
ARNP/ PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
G159714 IA
A-092601 IA
F-092601 IA
CP000559 SD
Self-reported in NPPES; status is on the state search
Practice location
625 Court Street, Sioux City, IA 51101
Phone
(712) 252-3871
Enumerated
Jan 25, 2006
Record last updated
May 31, 2022
Fax
(712) 252-3157
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 625 Court Street

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

  1. Joada Best, ARNPPsychiatric/Mental Health Clinical Nurse Specialist1619153137
  2. Sara Bushby, LISWClinical Social Worker1750614137
  3. Cassidy Carr, PMHNP-BCPsychiatric/Mental Health Clinical Nurse Specialist1871052472
  4. Danika Hansen, PMHNPPsychiatric/Mental Health Clinical Nurse Specialist1720698335
  5. Victoria Mason, LMFTMarriage & Family Therapist1346643244
  6. Jacqueline McInnis, PA-C,CAQ PSYCHIATRYPhysician Assistant1821268335

Verify Cynthia Ann Guthmiller 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 G159714
    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
Find the Iowa license search

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88% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

106 Medicare Part D claims for 20 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Cynthia Guthmiller106
  2. Specialty average906

Most prescribed

  1. Vraylar14 claims
  2. Lamotrigine12 claims
  3. Trazodone Hcl11 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: $264.38

4 payments; by number, the most common kind was food and beverage; the largest payer was Supernus Pharmaceuticals, 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. Cynthia Guthmiller$264.38
  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.

Cynthia Ann Guthmiller among 612 psychiatric/mental health nurse practitioner records in Iowa

Cynthia Ann Guthmiller, ARNP/ 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 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 89% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • 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).

19 psychiatric/mental health nurse practitioner records list a practice address in Sioux City

They are 19 of the 1,486 NPPES records with a practice address in Sioux City, and 612 psychiatric/mental health nurse practitioner records in Iowa.

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

  1. Monsurat AdelekeSioux City, IA 511011669308433
  2. Ashley Anderson, PMHNP-BCSioux City, IA 511011881499242
  3. Brenda Cain, PMHNP-BCSioux City, IA 511011104498039
  4. Glenda Denherder, APRNSioux City, IA 511011477596450
  5. Maribel GarciaSioux City, IA 511011699509992
  6. Stephanie Ienn, MSN, ARNP, PMHNP-BCSioux City, IA 511011184550956
  7. Tyler Lesko, PMHNP-BCSioux City, IA 511011538847181
  8. Monica Nuckolls, PMHNPSioux City, IA 511011871375543

Common questions

What is Cynthia Ann Guthmiller, ARNP/ PMHNP's NPI number?

Cynthia Ann Guthmiller, ARNP/ PMHNP's National Provider Identifier (NPI) is 1790755395, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Cynthia Ann Guthmiller, ARNP/ PMHNP located?

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

How can I verify Cynthia Ann Guthmiller, ARNP/ PMHNP's license?

NPPES lists Iowa license number G159714, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Cynthia Ann Guthmiller, ARNP/ PMHNP prescribe under Medicare Part D?

In 2024, Cynthia Ann Guthmiller, ARNP/ PMHNP had 106 Medicare Part D claims for 20 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.