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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Anthony P. Maresca, M.D.

Anesthesiology Physician in Milwaukee, WI · enumerated 2005.

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

National Provider Identifier

1548245715

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Registry record

Entity type Individual (Type 1)
Name Dr. Anthony P. Maresca
Credential M.D.
Sex Male
Practice address 2323 N Lake Dr, Milwaukee, WI, 53211
Phone (414) 291-1000
Enumeration date Dec 10, 2005
Last updated in NPPES Feb 15, 2009

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 27267-020 (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
30841100 Medicaid WI -
P00429799 Other - RAIL ROAD MEDICARE

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 → Validate an NPI →

Frequently asked questions

Is NPI 1548245715 active?
Yes, as of the latest NPPES snapshot, NPI 1548245715 is active (record last updated 2009-02-15).
How do I verify Anthony Maresca's NPI record?
Cross-check NPI 1548245715 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-15.