Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ammar Mahmoud, M.D

Pain Medicine (Anesthesiology) Physician in De Pere, WI · enumerated 2013 · practices at Alleviate Pain and Spine, Sc.

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

National Provider Identifier

1235578485

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Registry record

Entity type Individual (Type 1)

Name Ammar Mahmoud

Credential M.D

Sex Male

Practice address 1716 Lawrence Dr Ste 103, De Pere, WI, 54115

Phone (920) 632-6800

Fax (920) 632-6806

Enumeration date Jun 20, 2013

Last updated in NPPES Dec 11, 2025

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 125063751 (IL) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 85747-20 (WI) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License MD21879 (ME) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Ammar Mahmoud?

Ammar Mahmoud is registered in NPPES with the primary taxonomy of Pain Medicine (Anesthesiology) 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 2025-12-11.