DR. JOHN HENRY STOCK MD
NPI 1366467094
Pediatrics - Pediatric Cardiology in Tempe, AZ
About Dr. John Henry Stock Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN HENRY STOCK MD (NPI 1366467094) is an individual pediatric cardiology provider in Tempe, Arizona, licensed in Arizona (25426) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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)
Dr. John Henry Stock Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Stock reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mesa, AZ 85206
- Reassigned Medicare billing, Arizona enrollment
- Medicare enrollment name: Phoenix Children's Hospital
- 1,416 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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 John Stock's NPI number?
The NPI number for John Stock is 1366467094. It was assigned to this individual provider in the NPPES registry on July 13, 2006.
Where is John Stock located?
John Stock practices at 7505 S Mcclintock Dr Suite 103, Tempe, AZ 85283. The listed phone number is (480) 755-1000.
What is John Stock's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is John Stock enrolled in Medicare?
Yes. John Stock is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Stock's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Stock reassigns Medicare benefits to Phoenix Children's Medical Group (Mesa, AZ). The 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 John Stock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Stock accept?
Health plans from Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list John Stock 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 John Stock was last updated on May 3, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.