Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Ronald Walter Greenbaum, RPH

Pharmacist in Valhalla, NY · enumerated 2010.

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

National Provider Identifier

1154646396

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Registry record

Entity type Individual (Type 1)

Name Mr. Ronald Walter Greenbaum

Credential RPH

Sex Male

Practice address 95 Grasslands Rd, Room Lle-01, Westchester Medical Center - Main Pharmacy, Valhalla, NY, 10595

Phone (914) 493-7207

Enumeration date Mar 31, 2010

Last updated in NPPES Mar 31, 2010

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 032501 (NY) Primary

183500000X Pharmacist Pharmacy Service Providers · License 28RI03062400 (NJ) Secondary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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 Ronald Greenbaum?

The National Provider Identifier (NPI) for Ronald Greenbaum is 1154646396, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ronald Greenbaum practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-31.