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Ms. Keiko Iwahara Greenberg

Nephrology Physician in Baltimore, MD · enumerated 2009.

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

National Provider Identifier

1588807408

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Registry record

Entity type Individual (Type 1)
Name Ms. Keiko Iwahara Greenberg
Sex Female
Practice address 1830 E Monument St Ste 416, Baltimore, MD, 21287
Phone (410) 955-5268
Enumeration date Apr 7, 2009
Last updated in NPPES Jan 1, 2016

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License D0079185 (MD) Primary

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

What is the NPI number for Keiko Greenberg?
The National Provider Identifier (NPI) for Keiko Greenberg is 1588807408, a Type 1 (individual) record in the CMS NPPES registry.
Where does Keiko Greenberg practice?
The practice location on file with NPPES is in Baltimore, MD. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-01.