NPI Portal NPI Lookup & Verification

Karl J Bertram, MD

Karl J Bertram is a Surgery Physician provider (Surgery) practicing in Ripon, WI, registered in the NPPES registry with NPI 1801868047 since 2006. The credential MD stands for Doctor of Medicine. Practices at Agnesian Healthcare Inc (listed at the same practice address in NPPES).

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NPI 1801868047
Entity type Individual (Type 1)
Name Karl J Bertram
Credential MD
Sex Male
Practice address 835 PARKSIDE ST, Ripon, WI, 54971
Phone 9207453540
Fax 9207457932
Enumeration date 2006-02-02
Last updated in NPPES 2020-10-22

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Primary 41089 WI

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
32557700 Medicaid WI
Copy-ready billing details
Provider: Karl Bertram, MD
NPI: 1801868047
Taxonomy: 208600000X (Surgery Physician)
Address: 835 PARKSIDE ST, Ripon, WI, 54971

Other providers at this practice address

NPI Name Type Specialty Location
1710971718 Richard Gauthier Individual Family Medicine Physician Ripon, WI
1033103833 Jeanne Lyke Individual Pediatrics Physician Ripon, WI
1245226596 John Stanton Individual Physician Assistant Ripon, WI
1689656829 Theodore Miller Individual Obstetrics & Gynecology Physician Ripon, WI
1629039607 Jeffrey Meincke-Reza Individual Orthopaedic Surgery Physician Ripon, WI
1710146097 Ewa Paszkiewicz Individual Family Medicine Physician Ripon, WI
1679899314 Stephanie Glod Individual Family Medicine Physician Ripon, WI
1104120864 Susan Riek Individual Family Nurse Practitioner Ripon, WI

Verify this record

Cross-check NPI 1801868047 against the authoritative CMS record: view Karl J Bertram on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Karl Bertram?
Karl Bertram is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-10-22.