DR. JOHN MARDONES M.D.
NPI 1669408522
Emergency Medicine in Indio, CA
About Dr. John Mardones M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN MARDONES M.D. (NPI 1669408522) is an individual emergency medicine provider in Indio, California, licensed in California (A41581) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 8
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 Mardones M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Mardones reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
California City, CA 93505
- Reassigned Medicare billing, California enrollment
- 192 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 92201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Mardones's NPI number?
The NPI number for John Mardones is 1669408522. It was assigned to this individual provider in the NPPES registry on June 23, 2006.
Where is John Mardones located?
John Mardones practices at 47111 Monroe St PO Drawer Llll, Indio, CA 92201. The listed phone number is (760) 347-6191.
What is John Mardones's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Mardones enrolled in Medicare?
Yes. John Mardones is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Mardones's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Mardones reassigns Medicare benefits to Adventist Health Medical Center Tehachapi (California City, CA). 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 Mardones's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Mardones was last updated on August 26, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. John Mardones, M.D. · NPI 1669408522
Emergency Medicine physician in Indio, California. Individual provider, active in the CMS NPPES registry since June 23, 2006.
## Identity
- **NPI:** 1669408522 (Entity type: Individual)
- **Enumerated:** June 23, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A41581 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 47111 MONROE ST, PO DRAWER LLLL, Indio, CA 92201-6739
- **Phone:** (760) 347-6191
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Adventist Health Medical Center Tehachapi (NPI 1699084525, California City, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 26, 2009
- **Other identifiers:** Other 00A415810; Medicare UPIN A29411; Other A41581; and 5 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1669408522) · Data from the CMS NPPES public registry.