Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Robert J Roggensack, OD
Optometrist in Osage, IA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891887410
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Registry record
Entity type Individual (Type 1)
Name Robert J Roggensack
Credential OD
Sex Male
Practice address 620 N 8th St, Osage, IA, 50461
Phone (641) 723-6100
Fax (641) 723-6108
Enumeration date Sep 29, 2006
Last updated in NPPES May 19, 2021
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0250357 | Medicaid | IA | - |
| 25035 | Other | IA | WELLMARK |
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.
Frequently asked questions
What specialty is Robert Roggensack?
Robert Roggensack is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Colleen Byrnes Nurse Practitioner · Osage, IA NPI 1942286422 Jean Lunde Physician Assistant · Osage, IA NPI 1912099524 Marc Waitek Physician Assistant · Osage, IA NPI 1821180431 Mark Haganman Family Medicine Physician · Osage, IA NPI 1801988415 Jeffrey Nasstrom Family Medicine Physician · Osage, IA NPI 1710079322 Edward Touney Family Medicine Physician · Osage, IA NPI 1083706600 Mitchell County Memorial Hospital Rural Health Clinic/Center · Osage, IA NPI 1588756191 Mitchell County Memorial Hospital Family Medicine Physician · Osage, IA NPI 1154487544
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-19.