Trimark Physicians Group Inc
Trimark Physicians Group Inc is a healthcare organization registered as Rural Health Clinic/Center in Humboldt, IA, holding Type 2 (organization) NPI 1992781082 since 2005. The authorized official on file is Michael Dewerff, Cfo.
✓ Active NPI ✓ Valid NPI checksum Organization subpart
| NPI | 1992781082 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Trimark Physicians Group Inc |
| Other name | <Unavail> |
| Parent organization | Trimark Physicians Group Inc |
| Practice address | 1010 15TH ST N, Humboldt, IA, 50548 |
| Phone | 5153322015 |
| Enumeration date | 2005-12-20 |
| Last updated in NPPES | 2010-12-22 |
Authorized official
| Name | Michael Dewerff |
|---|---|
| Title | Cfo |
| Phone | 5155746603 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 261QR1300X | Rural Health Clinic/Center | Primary | — | — |
Copy-ready billing details
Provider: Trimark Physicians Group Inc NPI: 1992781082 Taxonomy: 261QR1300X (Rural Health Clinic/Center) Address: 1010 15TH ST N, Humboldt, IA, 50548
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1629069786 | David Ruzicka | Individual | Emergency Medicine Physician | Humboldt, IA |
| 1326010794 | Laine Dvorak | Individual | Family Medicine Physician | Humboldt, IA |
| 1710959937 | Sherry Bulten | Individual | Family Medicine Physician | Humboldt, IA |
| 1629040951 | Sharmini Rasakulasuriar | Individual | Internal Medicine Physician | Humboldt, IA |
| 1518939693 | Sue Malloy | Individual | Nurse Practitioner | Humboldt, IA |
| 1013065341 | Robert Mcpeak | Individual | Physician Assistant | Humboldt, IA |
| 1952682395 | Christine Vitzthum | Individual | Family Nurse Practitioner | Humboldt, IA |
| 1619246899 | Trimark Physicians Group | Organization | Rural Health Clinic/Center | Humboldt, IA |
Verify this record
Cross-check NPI 1992781082 against the authoritative CMS record: view Trimark Physicians Group Inc on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What is a Type 2 NPI?
What type of organization is Trimark Physicians Group Inc?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-12-22.