PETER CHIARELLI MD
NPI 1154642320
Neurological Surgery in Phoenix, AZ

Active since June 22, 2010PECOS Enrolled
1919 E THOMAS RD, PHOENIX, AZ 85016(602) 933-1000 Get Directions Write a Review

NPPES record last updated: August 13, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 13, 2025, Jun 24, 2025 (2 updates tracked since 2025).

About Peter Chiarelli Md NPPES

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

PETER CHIARELLI MD (NPI 1154642320) is an individual neurological surgery provider in Phoenix, Arizona, licensed in Arizona (76531) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and maintains a secondary practice location in Seattle.

NPPES Registry Identity

NPI1154642320
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NamePETER CHIARELLICredential: MD
Location Address1919 E THOMAS RDPhoenix, AZ 85016-7710
Mailing Address2108 E Thomas RdPhoenix, AZ 85016-7761 · (602) 933-3124
Sole ProprietorNo
Enumeration DateJune 22, 2010
Last NPPES UpdateAugust 13, 20252 updates tracked since enumeration
NPPES CertifiedAugust 13, 2025
✔ NPI 1154642320 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License✔ Licensed in AZ · 76531
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
1919 E THOMAS RD, Phoenix, AZ 85016

Secondary Practice Location 1

Location 1325 9th Ave, Box 359924Seattle, WA 98104-2420 · Phone (206) 744-9316

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Peter Chiarelli Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Peter Chiarelli reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pediatrics
1919 E THOMAS RD
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 1,416 clinicians in this Medicare group
Multi-Specialty
4650 SUNSET BLVD
Los Angeles, CA 90027
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Childrens Hospital Los Angeles Medical Group Inc
  • 1,281 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85016 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Hospitalist
1919 E THOMAS RD
PHOENIX, AZ 85016
Dietitian, Registered
1919 E THOMAS RD
PHOENIX, AZ 85016
Anesthesiology (Pediatric Anesthesiology)
1919 E THOMAS RD
PHOENIX, AZ 85016
Social Worker (Clinical)
1919 E THOMAS RD
PHOENIX, AZ 85016
Anesthesiology (Pediatric Anesthesiology)
1919 E THOMAS RD
PHOENIX, AZ 85016
Pediatrics
1919 E THOMAS RD
PHOENIX, AZ 85016
Pediatrics
1919 E THOMAS RD
PHOENIX, AZ 85016
Pediatrics (Pediatric Gastroenterology)
1919 E THOMAS RD
PHOENIX, AZ 85016

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 Peter Chiarelli's NPI number?

The NPI number for Peter Chiarelli is 1154642320. It was assigned to this individual provider in the NPPES registry on June 22, 2010.

Where is Peter Chiarelli located?

Peter Chiarelli practices at 1919 E Thomas Rd, Phoenix, AZ 85016. The listed phone number is (602) 933-1000.

What is Peter Chiarelli's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Peter Chiarelli enrolled in Medicare?

Yes. Peter Chiarelli is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Peter Chiarelli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Chiarelli reassigns Medicare benefits to 2 organizations: Phoenix Children's Hospital (Phoenix, AZ) and Children's Hospital Los Angeles Medical Group, Inc. (Los Angeles, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Peter Chiarelli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Peter Chiarelli accept?

Health plans from Imperial Insurance Companies, Inc. list Peter Chiarelli as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Peter Chiarelli was last updated on August 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.