NPPES file of Aug 9, 2026

Timothy Harold Hoffmann, ARNP

Psychiatric/Mental Health Nurse Practitioner · Waterloo, IA

Timothy Harold Hoffmann, ARNP is a psychiatric/mental health nurse practitioner with a practice address in Waterloo, Iowa, and NPI 1902792856, issued on Jun 17, 2025. Check the license (Iowa G185506, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902792856
Name
Timothy Harold Hoffmann
Credential
ARNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
G185506 IA
Self-reported in NPPES; status is on the state search
Practice location
3251 W 9TH St, Waterloo, IA 50702
Phone
(319) 269-6146
Enumerated
Jun 17, 2025
Record last updated
Aug 14, 2025
Fax
(319) 234-0354
Medicare enrollment
Enrolled (PECOS I20250917004487); 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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8 nearest psychiatric/mental health nurse practitioner records → All 612 in Iowa → Look up another NPI →

Also registered at 3251 W 9TH St

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

  1. Alexis Adams, LMSWClinical Social Worker1528820255
  2. Melissa Adams, LMSWClinical Social Worker1164872735
  3. Cassandra Alderman, TLMHC, CADCMental Health Counselor1417647454
  4. Joanna Anderson, PMHNPPsychiatric/Mental Health Nurse Practitioner1295554822
  5. Joyce Andresen, LISWClinical Social Worker1538314018
  6. Richard Anfinson, LISWClinical Social Worker1730269432

Verify Timothy Harold Hoffmann 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 G185506    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Black Hawk-Grundy Mental Health Center IncWaterloo, IA

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

Timothy Harold Hoffmann among 612 psychiatric/mental health nurse practitioner records in Iowa

Timothy Harold Hoffmann, ARNP 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 2025, is newer than 87% of them.

  • NPI issued2025 · 87% of these records are older, 5% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2025 · median 2021 among the 398 with a school on file
  • Record last updated2025 · 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).

26 psychiatric/mental health nurse practitioner records list a practice address in Waterloo

They are 26 of the 1,512 NPPES records with a practice address in Waterloo, and 612 psychiatric/mental health nurse practitioner records in Iowa.

All 612 in Iowa → Every provider in Waterloo → Psychiatric/Mental Health Nurse Practitioner nationwide →

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

  1. Joanna Anderson, PMHNPWaterloo, IA 507021295554822
  2. Robert Boyle, APRNWaterloo, IA 507021346557550
  3. Nicole Delagardelle, ARNPWaterloo, IA 507021255823506
  4. Donna Dobson-Tobin, NP, APRNWaterloo, IA 507021245227099
  5. Stephanie Giesler, PMHNPWaterloo, IA 507021750845954
  6. Cyd Grafft, ARNPWaterloo, IA 507021477633188
  7. Abby Kolthoff, ARNPWaterloo, IA 507021184056822
  8. Evans Komen, DNP,PMHNP-BCWaterloo, IA 507021003216839

Common questions

What is Timothy Harold Hoffmann, ARNP's NPI number?

Timothy Harold Hoffmann, ARNP's National Provider Identifier (NPI) is 1902792856, issued on Jun 17, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Timothy Harold Hoffmann, ARNP located?

The NPPES record lists a practice address at 3251 W 9TH St, Waterloo, IA, 50702. Phone: (319) 269-6146. Providers update this record themselves, so call before visiting.

How can I verify Timothy Harold Hoffmann, ARNP's license?

NPPES lists Iowa license number G185506, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.