NPI Portal NPI Lookup & Verification

Mr. Brad A. Johnson, MD

Mr. Brad A. Johnson is a Critical Care Medicine (Internal Medicine) Physician provider (Internal Medicine) practicing in Greenfield, WI, registered in the NPPES registry with NPI 1013250737 since 2013. The credential MD stands for Doctor of Medicine.

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NPI 1013250737
Entity type Individual (Type 1)
Name Mr. Brad A. Johnson
Credential MD
Sex Male
Practice address 6901 W EDGERTON AVE, Greenfield, WI, 53220
Phone 4144218400
Enumeration date 2013-04-01
Last updated in NPPES 2024-07-15

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207P00000X Emergency Medicine Physician Secondary 20554 WI
207RC0200X Critical Care Medicine (Internal Medicine) Physician Primary 20554 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
1036645 Medicaid WA
100174759 Medicaid WI
Copy-ready billing details
Provider: Brad Johnson, MD
NPI: 1013250737
Taxonomy: 207RC0200X (Critical Care Medicine (Internal Medicine) Physician)
Address: 6901 W EDGERTON AVE, Greenfield, WI, 53220

Other providers at this practice address

NPI Name Type Specialty Location
1902878242 Annah Houk Individual Physician Assistant Greenfield, WI
1629036215 Maggie Zaki Individual Family Medicine Physician Milwaukee, WI
1043268600 Melissa Lynch Individual Physician Assistant Greenfield, WI
1194773796 Hany Mikhaeel Individual Family Medicine Physician Milwaukee, WI
1184674723 Janice Gregory Individual Nurse Practitioner Greenfield, WI
1033160957 Heidi Harkins Individual Internal Medicine Physician Greenfield, WI
1376579417 Mesfin Abdissa Individual Internal Medicine Physician Milwaukee, WI
1861426082 Aurora Pharmacy Inc Organization Pharmacy Milwaukee, WI

Verify this record

Cross-check NPI 1013250737 against the authoritative CMS record: view Mr. Brad A. Johnson 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 Brad Johnson?
Brad Johnson is registered in NPPES with the primary taxonomy of Critical Care Medicine (Internal Medicine) 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 2024-07-15.