IVES DE CHAZAL, MD, PLLC
NPI 1720750425
Internal Medicine - Pulmonary Disease in Tucson, AZ
About Ives De Chazal, Md, Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IVES DE CHAZAL, MD, PLLC (NPI 1720750425) is a healthcare organization registered as a pulmonary disease in Tucson, Arizona and active in the NPI registry since September 2021. The organization lists Ives De Chazal, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ives De Chazal, Md, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Ives De Chazal, MD, PLLC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Ives De Chazal, MD, PLLC's NPI number?
The NPI number for Ives De Chazal, MD, PLLC is 1720750425. It was assigned to this organization in the NPPES registry on September 30, 2021.
Where is Ives De Chazal, MD, PLLC located?
Ives De Chazal, MD, PLLC is located at 3705 N Swan Rd, Tucson, AZ 85718. The listed phone number is (520) 524-6520.
What is Ives De Chazal, MD, PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Ives De Chazal, MD, PLLC enrolled in Medicare?
Yes. Ives De Chazal, MD, PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Ives De Chazal, MD, PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Ives De Chazal, MD, PLLC, in Nurse Practitioner and Pulmonary Disease. A 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 the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Ives De Chazal, MD, PLLC was last updated on September 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ives De Chazal, Md, Pllc · NPI 1720750425
Pulmonary Disease organization in Tucson, Arizona. Organization record, active in the CMS NPPES registry since September 30, 2021.
## Identity
- **NPI:** 1720750425 (Entity type: Organization)
- **Enumerated:** September 30, 2021
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **Organization subpart:** No
- **Authorized official:** Ives De Chazal, OWNER
## Practice location
- **Address:** 3705 N SWAN RD, Tucson, AZ 85718-6939
- **Phone:** (520) 524-6520 · **Fax:** (520) 524-6520
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (2), Pulmonary Disease (1); 1 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 30, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1720750425) · Data from the CMS NPPES public registry.