Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ira N Grenadir, D.P.M.
Podiatrist in Cambridge, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1407892086
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Registry record
Entity type Individual (Type 1)
Name Dr. Ira N Grenadir
Credential D.P.M.
Sex Male
Practice address 205 Walden Street, Ste.Apt. 5j, Cambridge, MA, 02140
Phone (617) 492-1827
Enumeration date Jun 21, 2006
Last updated in NPPES Sep 11, 2025
Taxonomy & licenses
213ES0000X Sports Medicine Podiatrist Podiatric Medicine & Surgery Service Providers · License 1556 (MA) Secondary
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle.
About the DPM 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.
Frequently asked questions
What specialty is Ira Grenadir?
Ira Grenadir is registered in NPPES with the primary taxonomy of Podiatrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.