NPI Portal NPI Lookup & Verification

Dr. John T Topp, D.O.

Dr. John T Topp is a Anesthesiology Physician provider (Anesthesiology) practicing in Appleton, WI, registered in the NPPES registry with NPI 1417985409 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.

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NPI 1417985409
Entity type Individual (Type 1)
Name Dr. John T Topp
Credential D.O.
Sex Male
Practice address 1818 N MEADE ST, Appleton, WI, 54911
Phone 9207314101
Enumeration date 2006-06-29
Last updated in NPPES 2007-07-09

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207L00000X Anesthesiology Physician Primary 40926-21 WI

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
30092400 Medicaid WI
Copy-ready billing details
Provider: John Topp, D.O.
NPI: 1417985409
Taxonomy: 207L00000X (Anesthesiology Physician)
Address: 1818 N MEADE ST, Appleton, WI, 54911

Other providers at this practice address

NPI Name Type Specialty Location
1588666853 Appleton Emergency Services S C Organization Emergency Medicine Physician Appleton, WI
1689679953 Michael Hooker Individual Hospitalist Physician Appleton, WI
1346249323 Honnie Bermas Individual Surgery Physician Appleton, WI
1306846894 Steven Mcintyre Individual Emergency Medical Services (Emergency Medicine) Physician Appleton, WI
1194725879 Cyril Walsh Individual Emergency Medical Services (Emergency Medicine) Physician Appleton, WI
1558361238 Sharon Thorson Individual Family Nurse Practitioner Appleton, WI
1902806698 Brad Sandleback Individual Emergency Medical Services (Emergency Medicine) Physician Appleton, WI
1831199439 Craig Quandt-Walle Individual Medical Physician Assistant Appleton, WI

Verify this record

Cross-check NPI 1417985409 against the authoritative CMS record: view Dr. John T Topp 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 NPI 1417985409 active?
Yes — as of the latest NPPES snapshot, NPI 1417985409 is active (record last updated 2007-07-09).
How do I verify John Topp's NPI record?
Cross-check NPI 1417985409 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-09.