ALLERGY & IMMUNOLOGY CENTER INC
NPI 1255071635
Clinic/Center - Medical Specialty in Encino, CA
About Allergy & Immunology Center Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLERGY & IMMUNOLOGY CENTER INC (NPI 1255071635) is a healthcare organization registered as a medical specialty in Encino, California and active in the NPI registry since April 2022. The organization lists Ryan Shilian, Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Allergy & Immunology Center Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Allergy & Immunology Center Inc, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Allergy & Immunology Center Inc's NPI number?
The NPI number for Allergy & Immunology Center Inc is 1255071635. It was assigned to this organization in the NPPES registry on April 1, 2022.
Where is Allergy & Immunology Center Inc located?
Allergy & Immunology Center Inc is located at 16661 Ventura Blvd Ste 311, Encino, CA 91436. The listed phone number is (310) 867-3480.
What is Allergy & Immunology Center Inc's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.
Is Allergy & Immunology Center Inc enrolled in Medicare?
Yes. Allergy & Immunology Center Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Allergy & Immunology Center Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Allergy & Immunology Center Inc. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Allergy & Immunology Center Inc was last updated on April 1, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Allergy & Immunology Center Inc · NPI 1255071635
Medical Specialty organization in Encino, California. Organization record, active in the CMS NPPES registry since April 1, 2022.
## Identity
- **NPI:** 1255071635 (Entity type: Organization)
- **Enumerated:** April 1, 2022
- **Primary specialty:** Clinic/Center - Medical Specialty · taxonomy 261QM2500X
- **Organization subpart:** No
- **Authorized official:** Ryan Shilian, DIRECTOR
## Practice location
- **Address:** 16661 VENTURA BLVD STE 311, Encino, CA 91436-1955
- **Phone:** (310) 867-3480
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 1, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1255071635) · Data from the CMS NPPES public registry.