Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Richard Mcdonald, MD

Diagnostic Radiology Physician in Madison, WI · enumerated 2019.

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

National Provider Identifier

1225693492

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Registry record

Entity type Individual (Type 1)

Name Alexander Richard Mcdonald

Credential MD

Sex Male

Practice address 123 N Blount St Unit 404, Madison, WI, 53703

Phone (636) 293-6316

Enumeration date May 3, 2019

Last updated in NPPES May 15, 2026

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 60124 (KY) Primary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 76079-20 (WI) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 35.155374 (OH) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Alexander Mcdonald?

The National Provider Identifier (NPI) for Alexander Mcdonald is 1225693492, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Mcdonald practice?

The practice location on file with NPPES is in Madison, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-15.