Ira N Grenadir, D.P.M.

Primary specialty

PodiatristTaxonomy code 213E00000X

License

1556 Issued in MA

Practice address

205 Walden Street
Ste.Apt. 5J
Cambridge, MA 02140-3511

Phone

(617) 492-1827

NPI assigned

Jun 21, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

State licenses

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1150848000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1407892086",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "205 WALDEN STREET",
            "address_2": "STE. 5J",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021403511",
            "telephone_number": "617-492-1827"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "205 WALDEN STREET",
            "address_2": "STE.APT. 5J",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021403511",
            "telephone_number": "617-492-1827"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRENADIR",
        "first_name": "IRA",
        "middle_name": "N",
        "name_prefix": "Dr.",
        "credential": "D.P.M.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-21",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "213E00000X",
            "taxonomy_group": "",
            "desc": "Podiatrist",
            "state": "MA",
            "license": "1556",
            "primary": true
        },
        {
            "code": "213ES0000X",
            "taxonomy_group": "",
            "desc": "Podiatrist, Sports Medicine",
            "state": "MA",
            "license": "1556",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Emily Phillips Greenstein
• Jennifer Greenwold, M.D.
• Gregory P Kosmidis DMD PC
• Erik Gregory, PHD
• Corrine E Greis
• Isabelle Eve Grenier, LMHC
• Barry Griffin, PA-C
• Cristin Griffin, PSY.D.
• Marion H Griffin, FNP
• Nancy Griffin, RN

• Podiatrist in Cambridge, MA
• Providers in Cambridge, MA by specialty
• Podiatrist in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.