Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Peter Langenstroer, MD
Urology Physician in Milwaukee, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780635532
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Registry record
Entity type Individual (Type 1)
Name Dr. Peter Langenstroer
Credential MD
Sex Male
Practice address 9200 W Wisconsin Ave, Department of Urology, Milwaukee, WI, 53226
Phone (414) 805-0805
Fax (414) 805-0771
Enumeration date May 15, 2006
Last updated in NPPES Jul 19, 2019
Taxonomy & licenses
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 |
|---|---|---|---|
| 1780635532 | Medicaid | WI | - |
| 002000225F | Other | - | HUMANA |
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.
Frequently asked questions
How do I verify Peter Langenstroer's NPI record?
Cross-check NPI 1780635532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1780635532 active?
Yes, as of the latest NPPES snapshot, NPI 1780635532 is active (record last updated 2019-07-19).
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-19.