DR. JOHN B CHASTAIN MD
NPI 1801915715
Otolaryngology in Tucson, AZ
About Dr. John B Chastain Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN B CHASTAIN MD (NPI 1801915715) is an individual otolaryngology provider in Tucson, Arizona, licensed in Arizona (51562) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Tucson, and is a graduate of Medical College Of Georgia School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. John B Chastain Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show John Chastain reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tucson, AZ 85712
- Reassigned Medicare billing, Arizona enrollment
- 18 clinicians in this Medicare group
Tucson, AZ 85712
- Reassigned Medicare billing, Arizona enrollment
- 138 clinicians in this Medicare group
Tucson, AZ 85718
- Reassigned Medicare billing, Arizona enrollment
- 59 clinicians in this Medicare group
Bylas, AZ 85530
- Reassigned Medicare billing, Texas enrollment
- 438 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.
Areas of Expertise CMS Part B claims 14
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85712 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TUCSON, AZ 85712
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 Chastain's NPI number?
The NPI number for John Chastain is 1801915715. It was assigned to this individual provider in the NPPES registry on March 29, 2007.
Where is John Chastain located?
John Chastain practices at 2121 N Craycroft Rd Bldg 5, Tucson, AZ 85712. The listed phone number is (520) 296-8500.
What is John Chastain's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is John Chastain enrolled in Medicare?
Yes. John Chastain is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Chastain's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Chastain reassigns Medicare benefits to 4 organizations: Tucson E.N.T. Associates, P.C. (Tucson, AZ), Children's Clinics For Rehabilitative Services (Tucson, AZ), Neurological Associates Of Tucson (Tucson, AZ) and San Carlos Apache Healthcare Corporation (Bylas, AZ). 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 John Chastain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Chastain accept?
Health plans from Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and UnitedHealthcare list John Chastain 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 Chastain was last updated on August 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.