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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ROBERT W HOLLENHORST MD
NPI 1174569727
Ophthalmology in Duluth, MN

Active since June 21, 2006
5007 MATTERHORN DR, DULUTH, MN 55811(218) 720-3553(218) 786-9375 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Robert W Hollenhorst Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT W HOLLENHORST MD (NPI 1174569727) is an individual ophthalmology provider in Duluth, Minnesota, licensed in Minnesota (22377) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1174569727
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameROBERT W HOLLENHORSTCredential: MD
Location Address5007 MATTERHORN DRDuluth, MN 55811-3812
Mailing Address5007 Matterhorn DrDuluth, MN 55811-3812 · (218) 720-3553 · Fax (218) 786-9375
Phone(218) 720-3553
Fax(218) 786-9375
Sole ProprietorNo
Enumeration DateJune 21, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1174569727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in MN · 22377
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
5007 MATTERHORN DR, Duluth, MN 55811
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Other Identifiers 1

Medicaid17265100MN

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RELF OPTICAL LTD
Eyewear Supplier
5007 MATTERHORN DR
DULUTH, MN 55811
St. Louis County (218) 720-3553
SUSAN J RELF MD
Ophthalmology
5007 MATTERHORN DR
DULUTH, MN 55811
St. Louis County (218) 720-3553
UPALI P ATURALIYA MD
Ophthalmology
5007 MATTERHORN DR
DULUTH, MN 55811
St. Louis County (218) 720-3553

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Hollenhorst's NPI number?

The NPI number for Robert Hollenhorst is 1174569727. It was assigned to this individual provider in the NPPES registry on June 21, 2006.

Where is Robert Hollenhorst located?

Robert Hollenhorst practices at 5007 Matterhorn Dr, Duluth, MN 55811. The listed phone number is (218) 720-3553.

What is Robert Hollenhorst's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

When was this NPI record last updated?

The NPPES record for Robert Hollenhorst was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.