Individual provider Active NPI

Ian Harrison Shields

  • Anesthesiology Physician
  • Philadelphia, PA
National Provider Identifier
1326798448
Registry record updated Jun 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
A209365 Issued in CA
Practice address
3400 Spruce St
Philadelphia, PA 19104-4238
Phone
(251) 599-0406
NPI assigned
Mar 24, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 19, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Anesthesiology Physician 207L00000X A209365 CA Primary

Addresses

Primary practice location

3400 Spruce St
Philadelphia, PA 19104-4238

Mailing address

1450 San Pablo St
HC4 3600
Los Angeles, CA 90033-5331

Other practice location 1

1200 N State St
Department Of Anesthesiology
Los Angeles, CA 90089-1001
Phone (323) 409-6225

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

NPI Registry JSON

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

{
    "created_epoch": "1648080000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781827200000",
    "number": "1326798448",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1450 SAN PABLO ST",
            "address_2": "HC4 3600",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900335331"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3400 SPRUCE ST",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191044238",
            "telephone_number": "251-599-0406"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1200 N State St",
            "address_2": "Department Of Anesthesiology",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "900891001",
            "country_code": "US",
            "telephone_number": "323-409-6225",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SHIELDS",
        "first_name": "IAN",
        "middle_name": "HARRISON",
        "name_prefix": "Dr.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-24",
        "last_updated": "2026-06-19",
        "certification_date": "2026-06-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "A209365",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Philadelphia, PA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 2026; 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.