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CHARLES J. WAISBREN MD S.C.
NPI 1447302492
Internal Medicine in Wauwatosa, WI

Active since January 18, 2007CLIA 52D0391416 · Accreditation
3077 N MAYFAIR RD, SUITE 100, WAUWATOSA, WI 53222(414) 771-5900(414) 771-4908 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 7, 2023, Aug 22, 2020 (2 updates tracked since 2020).

About Charles J. Waisbren Md S.c. NPPES

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

CHARLES J. WAISBREN MD S.C. (NPI 1447302492) is a healthcare organization registered as an internal medicine in Wauwatosa, Wisconsin and active in the NPI registry since January 2007. The organization holds an CLIA Accreditation certificate valid through June 23, 2028 and lists Charles J Waisbren, Physician, as its authorized official.

NPPES Registry Identity

NPI1447302492
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameCHARLES J. WAISBREN MD S.C.
Location Address3077 N MAYFAIR RD, SUITE 100Wauwatosa, WI 53222-4305
Mailing Address3077 N Mayfair Rd, Suite 100Wauwatosa, WI 53222-4305 · (414) 771-5900 · Fax (414) 771-4908
Phone(414) 771-5900
Fax(414) 771-4908
Organization SubpartNo
Authorized OfficialCharles J WaisbrenPhysician · (414) 771-5900
Enumeration DateJanuary 18, 2007
Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration
✔ NPI 1447302492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 25111
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3077 N MAYFAIR RD, Wauwatosa, WI 53222
Open in Google Maps ↗

Other Identifiers 1

Other1750481206WI · Personal Npi #

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Charles J. Waisbren Md S.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Charles J. Waisbren MD S.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

Charles Waisbren, MD
Internal Medicine
NPI 1750481206
201 N MAYFAIR RD SUITE 510
Wauwatosa, WI 53226
(414) 771-5900
✔ PECOS✔ Accepts Medicare2.9 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Accreditation 52D0391416

Charles J Waisbren MD · Wauwatosa, WI
Active · expires Jun 23, 2028
CLIA Number52D0391416
Laboratory TypePhysician Office
Certificate Effective DateJune 24, 2026
Certificate Expiration DateJune 23, 2028
Laboratory DirectorDr. Charles Waisbren
Laboratory Phone(414) 771-5900
Laboratory LocationCharles J Waisbren MD201 N Mayfair Rd, Suite 510, Wauwatosa, WI 53226
CLIA data matches this NPI record on: Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

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 J. Waisbren MD S.C.'s NPI number?

The NPI number for Charles J. Waisbren MD S.C. is 1447302492. It was assigned to this organization in the NPPES registry on January 18, 2007.

Where is Charles J. Waisbren MD S.C. located?

Charles J. Waisbren MD S.C. is located at 3077 N Mayfair Rd Suite 100, Wauwatosa, WI 53222. The listed phone number is (414) 771-5900.

What is Charles J. Waisbren MD S.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Charles J. Waisbren MD S.C. enrolled in Medicare?

Yes. Charles J. Waisbren MD S.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Charles J. Waisbren MD S.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Charles J. Waisbren MD S.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Charles J. Waisbren MD S.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Accreditation (number 52D0391416) is associated with this NPI, valid through June 23, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Charles J. Waisbren MD S.C. accept?

Health plans from CareSource (Common Ground Healthcare) list Charles J. Waisbren MD S.C. 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 J. Waisbren MD S.C. was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.