DR. IRIS AMBROSIO PEREZ MD
NPI 1144328378
Pediatrics - Pediatric Pulmonology in San Diego, CA
About Dr. Iris Ambrosio Perez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IRIS AMBROSIO PEREZ MD (NPI 1144328378) is an individual pediatric pulmonology provider in San Diego, California, licensed in California (A53205) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Other (1990).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 1
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. Iris Ambrosio Perez 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
2Medicare enrollment records show Iris Perez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
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
Gilroy, CA 95020
- Reassigned Medicare billing, California enrollment
- 2,460 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.
Referred Medical Equipment & Supplies CMS DME claims
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN DIEGO, CA 92123
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 Iris Perez's NPI number?
The NPI number for Iris Perez is 1144328378. It was assigned to this individual provider in the NPPES registry on September 20, 2006.
Where is Iris Perez located?
Iris Perez practices at 3030 Childrens Way, San Diego, CA 92123. The listed phone number is (858) 966-5846.
What is Iris Perez's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Pulmonology, with taxonomy code 2080P0214X.
Is Iris Perez enrolled in Medicare?
Yes. Iris Perez 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 Iris Perez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Iris Perez reassigns Medicare benefits to 2 organizations: Children's Hospital Los Angeles Medical Group, Inc. (Los Angeles, CA) and County Of Santa Clara (Gilroy, 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 Iris Perez'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 Iris Perez was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Iris Ambrosio Perez, MD · NPI 1144328378
Pediatric Pulmonology physician in San Diego, California. Individual provider, active in the CMS NPPES registry since September 20, 2006.
## Identity
- **NPI:** 1144328378 (Entity type: Individual)
- **Enumerated:** September 20, 2006
- **Primary specialty:** Pediatrics - Pediatric Pulmonology · taxonomy 2080P0214X
- **State license:** A53205 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3030 CHILDRENS WAY, San Diego, CA 92123-4232
- **Phone:** (858) 966-5846
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Children's Hospital Los Angeles Medical Group, Inc. (NPI 1265530653, Los Angeles, CA); County Of Santa Clara (NPI 1922093533, Gilroy, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1990
## Record status
- **NPPES last updated:** July 28, 2026
- **Other identifiers:** Medicaid 00A532050 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1144328378) · Data from the CMS NPPES public registry.