Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Marilyn C Kay, MD

Q: What is the NPI number for Marilyn C Kay, MD?

The NPI for Marilyn C Kay, MD is 1972558351, a Type 2 (organization) record in the CMS NPPES registry.

Ophthalmology Physician in Milwaukee, WI · enumerated 2006 · authorized official Marilyn Kay, President.

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

National Provider Identifier

1972558351

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Registry record

Entity type Organization (Type 2)

Legal business name Marilyn C Kay, MD

Practice address 2801 W Kinnickinnic River Pkwy, Suite 450, Milwaukee, WI, 53215

Phone (414) 649-3300

Fax (414) 649-3306

Enumeration date May 23, 2006

Last updated in NPPES Sep 7, 2007

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Marilyn Kay

Title President

Phone (414) 649-3300

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

Who is the authorized official for Marilyn C Kay, MD?

NPPES lists Marilyn Kay (President) as the authorized official for this organization.

What is the NPI number for Marilyn C Kay, MD?

The NPI for Marilyn C Kay, MD is 1972558351, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-07.