NPPES file of Aug 9, 2026

Klamath Ophthalmology

Klamath Ophthalmology holds 5 active organization NPIs in the federal registry, with practice locations in 3 cities in 2 states. 3 list ophthalmology physician as their primary taxonomy; each location can bill under its own NPI.

CMS NPPES registry, file of Aug 9, 2026 · legal names grouped after punctuation and "LLC" are removed · method · Verify with CMS →

Which NPI is yours?

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Find a location's NPI

Klamath Falls, OR has the most NPIs, 3

  1. Klamath Falls, OR3
  2. Alturas, CA1
  3. Lakeview, OR1

Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.

Most NPIs were issued in 2006 and 2008

Klamath Ophthalmology NPIs by year issued2006: 1, 2007: 0, 2008: 1, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 1, 2014: 1, 2015: 0, 2016: 0, 2017: 100.30.50.8120062007200820092010201120122013201420152016201711111
Klamath Ophthalmology NPIs by year issued2006: 1, 2007: 0, 2008: 1, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 1, 2014: 1, 2015: 0, 2016: 0, 2017: 100.30.50.8120062007200820092010201120122013201420152016201711111
Klamath Ophthalmology NPIs by year issued2006: 1, 2007: 0, 2008: 1, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 1, 2014: 1, 2015: 0, 2016: 0, 2017: 100.30.50.812007200920112013201520172006: 12008: 1111

Source: CMS NPPES, enumeration dates.

1 NPIs were issued in 2006 alone, more than in any other year; none in 7 of the years between.

Klamath Falls, OR locations

The city with the most Klamath Ophthalmology NPIs. The full list of all 5 follows.

NPILocationPrimary taxonomyIssued
17301482712640 BIEHN ST, Klamath Falls, OROphthalmology PhysicianMar 22, 2006
1902041676629 MAIN ST, Klamath Falls, OROptometristDec 10, 2008
19627454142615 ALMOND ST, Klamath Falls, OROphthalmology PhysicianApr 3, 2013
All 5 locations, by state and city
NPILocationPrimary taxonomyIssued
12154427021201 THOMASON LN, Alturas, CAOphthalmology PhysicianDec 6, 2017
17301482712640 BIEHN ST, Klamath Falls, OROphthalmology PhysicianMar 22, 2006
1902041676629 MAIN ST, Klamath Falls, OROptometristDec 10, 2008
19627454142615 ALMOND ST, Klamath Falls, OROphthalmology PhysicianApr 3, 2013
1730586918628 N 1ST ST SUITE C, Lakeview, OROptometristDec 3, 2014

Checking an organization

  1. Match the NPI to the exact location you will visit or bill; each location can have its own.
  2. Confirm the business entity with the secretary of state.
  3. Check the HHS-OIG exclusion list for the organization and its owners.
  4. Verify each clinician you will see on their own record and with the state license search.

Common questions

Why does Klamath Ophthalmology have 5 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Klamath Ophthalmology's NPIs list practice locations in 3 cities.

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.