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DR. CHARLES ROBERT KOSOWSKI DDS
NPI 1801931712
Dentist - General Practice in Greenfield, WI

Active since February 20, 2007Opted out of Medicare · through Sep 23, 2026
10707 W BELOIT RD, GREENFIELD, WI 53228(414) 258-9630(414) 258-1955 Get Directions Write a Review

NPPES record last updated: February 19, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Charles Robert Kosowski Dds NPPES

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

DR. CHARLES ROBERT KOSOWSKI DDS (NPI 1801931712) is an individual general practice provider in Greenfield, Wisconsin, licensed in Wisconsin (6147-015) and active in the NPI registry since February 2007. He has opted out of Medicare through September 23, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1801931712
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. CHARLES ROBERT KOSOWSKICredential: DDS
Location Address10707 W BELOIT RDGreenfield, WI 53228-1225
Mailing Address10707 W Beloit RdGreenfield, WI 53228-1225 · (414) 258-9630 · Fax (414) 258-1955
Phone(414) 258-9630
Fax(414) 258-1955
Sole ProprietorNo
Enumeration DateFebruary 20, 2007
Last NPPES UpdateFebruary 19, 2008
✔ NPI 1801931712 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in WI · 6147-015
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
10707 W BELOIT RD, Greenfield, WI 53228
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Dr. Charles Robert Kosowski Dds 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 September 23, 2016 through September 23, 2026.

Opt-Out Effective DateSeptember 23, 2016
Opt-Out In Effect ThroughSeptember 23, 2026Opt-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 53228 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 4

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

DR. KIRSTEN FARR DMD
Dentist (General Practice)
10707 W BELOIT RD
GREENFIELD, WI 53228
Milwaukee County (414) 258-9630
AMER SHAH
Dentist (General Practice)
10707 W BELOIT RD
GREENFIELD, WI 53228
Milwaukee County (414) 209-7465
MS. BRITTNEY MARIE BORGA DDS
Dentist (General Practice)
10707 W BELOIT RD
MILWAUKEE, WI 53228
Milwaukee County (414) 258-9630
WILLIAM J CARINI DDS
Dentist
10707 W BELOIT RD, ADVANCED DENTAL TREATMENT CENTER
GREEN FIELD, WI 53228
Milwaukee County (414) 258-9630

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 Charles Kosowski's NPI number?

The NPI number for Charles Kosowski is 1801931712. It was assigned to this individual provider in the NPPES registry on February 20, 2007.

Where is Charles Kosowski located?

Charles Kosowski practices at 10707 W Beloit Rd, Greenfield, WI 53228. The listed phone number is (414) 258-9630.

What is Charles Kosowski's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is Charles Kosowski enrolled in Medicare?

No. Charles Kosowski has opted out of Medicare through September 23, 2026. 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.

What insurance does Charles Kosowski accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Delta Dental of Wisconsin, Inc. list Charles Kosowski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Charles Kosowski was last updated on February 19, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.