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DR. GORDON D. KORTHALS D.D.S.
NPI 1235271792
Dentist - Endodontics in Oshkosh, WI

Active since February 13, 2007Opted out of Medicare · through Apr 1, 2027
600 S MAIN ST, OSHKOSH, WI 54902(920) 233-8882(920) 303-2736 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Gordon D. Korthals D.d.s. NPPES

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

DR. GORDON D. KORTHALS D.D.S. (NPI 1235271792) is an individual endodontics provider in Oshkosh, Wisconsin, licensed in Wisconsin (4375-015) and active in the NPI registry since February 2007. He has opted out of Medicare through April 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1235271792
Entity TypeIndividualMale
Primary Taxonomy1223E0200X
Provider Legal NameDR. GORDON D. KORTHALSCredential: D.D.S.
Location Address600 S MAIN STOshkosh, WI 54902-6074
Mailing Address600 S. Main St.Oshkosh, WI 54902 · (920) 233-8882 · Fax (920) 303-2736
Phone(920) 233-8882
Fax(920) 303-2736
Sole ProprietorNo
Enumeration DateFebruary 13, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1235271792 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · EndodonticsDental Providers
Taxonomy Code1223E0200X
License✔ Licensed in WI · 4375-015
Definition
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
600 S MAIN ST, Oshkosh, WI 54902
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Gordon D. Korthals D.d.s. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 1, 2005 through April 1, 2027.

Opt-Out Effective DateApril 1, 2005
Opt-Out In Effect ThroughApril 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54902 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. TERRY LEE KIPPA DDS
Dentist (Endodontics)
600 S MAIN ST
OSHKOSH, WI 54902
Winnebago County (920) 233-8882
TERRY L. KIPPA DDS SC
Dentist (Endodontics)
600 S MAIN ST
OSHKOSH, WI 54902
Winnebago County (920) 233-8882
DR. KYLE P SCHROEDER D.D.S.
Dentist (Endodontics)
600 S MAIN ST
OSHKOSH, WI 54902
Winnebago County (920) 233-8882

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 Gordon Korthals's NPI number?

The NPI number for Gordon Korthals is 1235271792. It was assigned to this individual provider in the NPPES registry on February 13, 2007.

Where is Gordon Korthals located?

Gordon Korthals practices at 600 S Main St, Oshkosh, WI 54902. The listed phone number is (920) 233-8882.

What is Gordon Korthals's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Endodontics, with taxonomy code 1223E0200X.

Is Gordon Korthals enrolled in Medicare?

No. Gordon Korthals has opted out of Medicare through April 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Gordon Korthals was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.