NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Philip L Sonderman, MD

Plastic Surgery Physician in Brookfield, WI · enumerated 2005 · practices at Greater Milwaukee Plastic Surgeons Sc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1992709323

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Registry record

Entity type Individual (Type 1)
Name Dr. Philip L Sonderman
Credential MD
Sex Male
Practice address 13800 W North Avenue, Suite 110, Brookfield, WI, 53005
Phone (262) 717-4000
Fax (262) 641-7435
Enumeration date Jun 13, 2005
Last updated in NPPES May 19, 2008

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 28087 (WI) Secondary
208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 28087 (WI) Primary
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
31783900 Medicaid WI —

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.

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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 Philip Sonderman?
Philip Sonderman is registered in NPPES with the primary taxonomy of Plastic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-19.