Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Riegelman, NP

Nurse Practitioner in Manitowoc, WI · enumerated 2021.

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

National Provider Identifier

1720658529

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Registry record

Entity type Individual (Type 1)

Name Alexander Riegelman

Credential NP

Sex Male

Practice address 1111 Bayshore Dr, Manitowoc, WI, 54220

Phone (920) 682-6376

Fax (920) 652-0115

Enumeration date Jun 25, 2021

Last updated in NPPES May 19, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 236137 (WI) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 11083 (WI) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1720658529 active?

Yes, as of the latest NPPES snapshot, NPI 1720658529 is active (record last updated 2026-05-19).

How do I verify Alexander Riegelman's NPI record?

Cross-check NPI 1720658529 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 2026-05-19.