Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. IAN HARRISON SHIELDS
NPI 1326798448
Anesthesiology in Philadelphia, PA

Active since March 24, 2022
3400 SPRUCE ST, PHILADELPHIA, PA 19104(251) 599-0406 Get Directions Write a Review

NPPES record last updated: June 19, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Ian Harrison Shields NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. IAN HARRISON SHIELDS (NPI 1326798448) is an individual anesthesiology provider in Philadelphia, Pennsylvania, licensed in California (A209365) and active in the NPI registry since March 2022. He maintains a secondary practice location in Los Angeles.

NPPES Registry Identity

NPI1326798448
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. IAN HARRISON SHIELDS
Location Address3400 SPRUCE STPhiladelphia, PA 19104-4238
Mailing Address1450 San Pablo St, Hc4 3600Los Angeles, CA 90033-5331
Sole ProprietorNo
Enumeration DateMarch 24, 2022
Last NPPES UpdateJune 19, 2026
NPPES CertifiedJune 19, 2026
NPI 1326798448 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License Licensed in CA · A209365
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
3400 SPRUCE ST, Philadelphia, PA 19104

Secondary Practice Location 1

Location 11200 N State St, Department Of AnesthesiologyLos Angeles, CA 90089-1001 · Phone (323) 409-6225

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pediatrics
3400 SPRUCE ST, 8 RAVDIN
PHILADELPHIA, PA 19104
Radiology (Diagnostic Radiology)
3400 SPRUCE ST
PHILADELPHIA, PA 19104
Anesthesiology
3400 SPRUCE ST, 6 DULLES
PHILADELPHIA, PA 19104
Internal Medicine (Pulmonary Disease)
3400 SPRUCE ST
PHILADELPHIA, PA 19104
Student in an Organized Health Care Education/Training Program
3400 SPRUCE ST
PHILADELPHIA, PA 19104
Physician Assistant (Medical)
3400 SPRUCE ST, 4 SILVERSTEIN
PHILADELPHIA, PA 19104
Radiology (Diagnostic Radiology)
3400 SPRUCE ST
PHILADELPHIA, PA 19104
Physical Therapist
3400 SPRUCE ST, 1 WHITE BUILDING
PHILADELPHIA, PA 19104

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ian Shields's NPI number?

The NPI number for Ian Shields is 1326798448. It was assigned to this individual provider in the NPPES registry on March 24, 2022.

Where is Ian Shields located?

Ian Shields practices at 3400 Spruce St, Philadelphia, PA 19104. The listed phone number is (251) 599-0406.

What is Ian Shields's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

When was this NPI record last updated?

The NPPES record for Ian Shields was last updated on June 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.