ALLERGY AND ASTHMA SPECIALIST DOCTORS, INC.
NPI 1245794866
Allergy & Immunology in Pasadena, CA

Q: What is Allergy And Asthma Specialist Doctors, Inc.'s specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Active since January 28, 2019

94 N MADISON AVE, PASADENA, CA 91101(818) 558-5828(888) 717-1542 Get Directions Write a Review

NPPES record last updated: January 28, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Allergy And Asthma Specialist Doctors, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALLERGY AND ASTHMA SPECIALIST DOCTORS, INC. (NPI 1245794866) is a healthcare organization registered as an allergy & immunology in Pasadena, California and active in the NPI registry since January 2019. The organization maintains a secondary practice location in West Covina and lists Marine Demirjian, President, as its authorized official.

NPPES Registry Identity

NPI1245794866

Entity TypeOrganization

Primary Taxonomy207K00000X

Legal Business NameALLERGY AND ASTHMA SPECIALIST DOCTORS, INC.

Location Address94 N MADISON AVEPasadena, CA 91101-1740

Mailing Address1131 N Pacific AveGlendale, CA 91202-2358 · (818) 558-5828 · Fax (888) 717-1542

Phone(818) 558-5828

Fax(888) 717-1542

Organization SubpartNo

Authorized OfficialMarine DemirjianPresident · (818) 558-5828

Enumeration DateJanuary 28, 2019

✔ NPI 1245794866 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

94 N MADISON AVE, Pasadena, CA 91101

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Secondary Practice Location 1

Location 11135 S Sunset Ave Ste 304West Covina, CA 91790-3921 · Phone (818) 558-5828 · Fax (888) 717-1542

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 And Asthma Specialist Doctors, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 8 clinicians reassign Medicare billing to Allergy And Asthma Specialist Doctors, Inc., which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (8)

Flora Vardanian, MD

Allergy/Immunology

NPI 1184772048

94 N MADISON AVE
Pasadena, CA 91101

(626) 792-4171

✔ PECOS✔ Accepts MedicareSame address

Joshua Ang, DO

Allergy/Immunology

NPI 1699398016

94 N MADISON AVE
Pasadena, CA 91101

(818) 858-2071

✔ PECOS✔ Accepts MedicareSame address

Marine Demirjian, M.D.

Allergy/Immunology

NPI 1669624219

1131 N PACIFIC AVE
Glendale, CA 91202

(818) 558-5828

✔ PECOS✔ Accepts Medicare7.4 mi

Armine Gukasyan

Nurse Practitioner

NPI 1881280295

511 N HOLLYWOOD WAY
Burbank, CA 91505

(818) 841-0710

✔ PECOS✔ Accepts Medicare12 mi

Daniel Steigelman, MD

Allergy/Immunology

NPI 1982816963

1250 S SUNSET AVE STE 340
West Covina, CA 91790

(626) 792-4171

✔ PECOS✔ Accepts Medicare13 mi

Erica Chen, M.D.

Allergy/Immunology

NPI 1386089068

8001 VENTURA CANYON AVE
Panorama City, CA 91402

(833) 574-2273

✔ PECOS✔ Accepts Medicare17 mi

Danielle Page, DNP, FNP-BC

Nurse Practitioner

NPI 1497429302

3448 MOWRY AVE
Fremont, CA 94538

(510) 373-3000

✔ PECOS✔ Accepts Medicare319 mi

Claire Smigiel, MD

Allergy/Immunology

NPI 1578973913

750 WHITE PLAINS RD
Scarsdale, NY 10583

(914) 974-2574

✔ PECOS✔ Accepts Medicare2,452 mi

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 And Asthma Specialist Doctors, Inc.'s NPI number?

The NPI number for Allergy And Asthma Specialist Doctors, Inc. is 1245794866. It was assigned to this organization in the NPPES registry on January 28, 2019.

Where is Allergy And Asthma Specialist Doctors, Inc. located?

Allergy And Asthma Specialist Doctors, Inc. is located at 94 N Madison Ave, Pasadena, CA 91101. The listed phone number is (818) 558-5828.

What is Allergy And Asthma Specialist Doctors, Inc.'s specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Allergy And Asthma Specialist Doctors, Inc. enrolled in Medicare?

Yes. Allergy And Asthma Specialist Doctors, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Allergy And Asthma Specialist Doctors, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 2 Medicare specialties reassign their Medicare billing to Allergy And Asthma Specialist Doctors, 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. The largest specialties are Allergy/Immunology (6) and Nurse Practitioner (2). Of these, 2 practice at this address and 3 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 Allergy And Asthma Specialist Doctors, Inc. was last updated on January 28, 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.