Advanced in Primary Immunodeficiency (PID)

Dr. Raffi Tachdjian

Allergy and Immunology
Providence
1301 20th Street, Suite 380, 
Santa Monica, CA 
Accepting New Patients
Offers Telehealth

Advanced in Primary Immunodeficiency (PID)
Providence
1301 20th Street, Suite 380, 
Santa Monica, CA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Raffi Tachdjian is an Allergy and Immunologist in Santa Monica, California. Dr. Tachdjian is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Angioedema, Hereditary Angioedema, Hives, and Chronic Spontaneous Urticaria (CSU). Dr. Tachdjian is currently accepting new patients.

His clinical research consists of co-authoring 41 peer reviewed articles and participating in 4 clinical trials. MediFind looks at clinical research from the past 15 years. In particular, he has participated in 3 clinical trials in the study of Primary Immunodeficiency (PID).

Specialties
Allergy and Immunology
Licenses
Pediatric Allergy/Immunology in CA
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Cambia Health Solutions
  • EPO
  • INSURANCE PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Health Net

Accepted plan types not found. Please verify directly with the provider.

HMSA
  • HMO
  • PPO
Horizon Healthcare
  • EPO
  • POS
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Kaiser Permanente
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER MEDICARE
  • POS
  • PPO
LA Care
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Nippon Life
  • INSURANCE PLAN
Oscar
  • EPO
  • HMO
  • PPO
SCAN Health Plan
  • INSURANCE PLAN
  • MEDICARE MAPD
Tufts
  • HMO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 16 Less Insurance Carriers -

Locations

1301 20th Street, Suite 380, Santa Monica, CA 90404
Call: 310-998-0060

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


4 Clinical Trials

A Phase 3, Multicenter, Randomized, Placebo-controlled, Double-blind Study to Evaluate the Efficacy and Safety of Lanadelumab for Prevention Against Acute Attacks of Non-histaminergic Angioedema With Normal C1-Inhibitor (C1-INH)
A Phase 3, Multicenter, Randomized, Placebo-controlled, Double-blind Study to Evaluate the Efficacy and Safety of Lanadelumab for Prevention Against Acute Attacks of Non-histaminergic Angioedema With Normal C1-Inhibitor (C1-INH)
Enrollment Status: Completed
Publish Date: December 27, 2023
Intervention Type: Other, Drug
Study Drug: Lanadelumab
Study Phase: Phase 3
Expanded Access Program: Lanadelumab for the Prevention of Acute Attacks of Hereditary Angioedema (HAE) in Pediatric Patients 2 to <12 Years of Age and Lanadelumab for the Prevention Against Acute Attacks of Non-histaminergic Angioedema With Normal C1-Inhibitor (C1-INH)
Expanded Access Program: Lanadelumab for the Prevention of Acute Attacks of Hereditary Angioedema (HAE) in Pediatric Patients 2 to <12 Years of Age and Lanadelumab for the Prevention Against Acute Attacks of Non-histaminergic Angioedema With Normal C1-Inhibitor (C1-INH)
Enrollment Status: No_longer_available
Publish Date: July 24, 2023
Intervention Type: Drug
An Observational, Non-interventional, Study of Patients With Hereditary Angioedema in the United States and Canada (EMPOWER Study)
An Observational, Non-interventional, Study of Patients With Hereditary Angioedema in the United States and Canada (EMPOWER Study)
Enrollment Status: Completed
Publish Date: March 30, 2023
SPRING STUDY: An Open-Label, Multicenter, Phase 3 Study to Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of Lanadelumab for Prevention Against Acute Attacks of Hereditary Angioedema (HAE) in Pediatric Subjects 2 to <12 Years of Age
SPRING STUDY: An Open-Label, Multicenter, Phase 3 Study to Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of Lanadelumab for Prevention Against Acute Attacks of Hereditary Angioedema (HAE) in Pediatric Subjects 2 to <12 Years of Age
Enrollment Status: Completed
Publish Date: May 26, 2022
Intervention Type: Drug
Study Drug: Lanadelumab
Study Phase: Phase 3
View 3 Less Clinical Trials

41 Total Publications

Multicenter questionnaire study investigating characteristics of adults with unexplained chronic cough versus explained chronic cough.
Multicenter questionnaire study investigating characteristics of adults with unexplained chronic cough versus explained chronic cough.
Journal: Allergy and asthma proceedings
Published: September 17, 2025
View All 41 Publications
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Distinguished in Primary Immunodeficiency (PID)
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 (42.1 miles away)
949-239-4000
Languages Spoken:
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Ankmalika Louis is an Allergy and Immunologist in Newport Beach, California. Dr. Louis is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her top areas of expertise are Primary Immunodeficiency (PID), Common Variable Immune Deficiency, X-Linked Agammaglobulinemia, and Immunodeficiency with Hyper IgM Type 1.

Distinguished in Primary Immunodeficiency (PID)
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1505 N Edgemont St, 
Los Angeles, CA 
 (11.6 miles away)
833-574-2273
Languages Spoken:
English
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Tiffany Jean is a Pediatrics specialist and an Allergy and Immunologist in Los Angeles, California. Dr. Jean is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her top areas of expertise are Nonallergic Rhinopathy, Primary Immunodeficiency (PID), Ozena, and Hives. Dr. Jean is currently accepting new patients.

Advanced in Primary Immunodeficiency (PID)
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Krithika Ramadas, M.D.

2100 Lynn Rd Ste 225, 
Thousand Oaks, CA 
 (26.2 miles away)
Languages Spoken:
English
See accepted insurances

Krithika Ramadas is an Allergy and Immunologist in Thousand Oaks, California. Dr. Ramadas is rated as a Distinguished provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her top areas of expertise are Asthma, Sinusitis, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Allergic Rhinitis.

VIEW MORE PRIMARY IMMUNODEFICIENCY (PID) DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Tachdjian's expertise for a condition
ConditionClose
  • Elite
  • Angioedema
    Dr. Tachdjian is
    Elite
    . Learn about Angioedema.
    See more Angioedema experts
  • Hereditary Angioedema
    Dr. Tachdjian is
    Elite
    . Learn about Hereditary Angioedema.
    See more Hereditary Angioedema experts
  • Hives
    Dr. Tachdjian is
    Elite
    . Learn about Hives.
    See more Hives experts
  • Distinguished
  • Chronic Spontaneous Urticaria (CSU)
    Dr. Tachdjian is
    Distinguished
    . Learn about Chronic Spontaneous Urticaria (CSU).
    See more Chronic Spontaneous Urticaria (CSU) experts
  • Vibratory Urticaria
    Dr. Tachdjian is
    Distinguished
    . Learn about Vibratory Urticaria.
    See more Vibratory Urticaria experts
  • Advanced
  • Allergic Rhinitis
    Dr. Tachdjian is
    Advanced
    . Learn about Allergic Rhinitis.
    See more Allergic Rhinitis experts
  • Anaphylaxis
    Dr. Tachdjian is
    Advanced
    . Learn about Anaphylaxis.
    See more Anaphylaxis experts
  • Asthma
    Dr. Tachdjian is
    Advanced
    . Learn about Asthma.
    See more Asthma experts
  • Common Variable Immune Deficiency
    Dr. Tachdjian is
    Advanced
    . Learn about Common Variable Immune Deficiency.
    See more Common Variable Immune Deficiency experts
  • Grass Allergy
    Dr. Tachdjian is
    Advanced
    . Learn about Grass Allergy.
    See more Grass Allergy experts
  • Primary Immunodeficiency (PID)
    Dr. Tachdjian is
    Advanced
    . Learn about Primary Immunodeficiency (PID).
    See more Primary Immunodeficiency (PID) experts
View All 7 Advanced Conditions
  • Experienced
  • Allergic Conjunctivitis
    Dr. Tachdjian is
    Experienced
    . Learn about Allergic Conjunctivitis.
    See more Allergic Conjunctivitis experts
  • Asthma in Children
    Dr. Tachdjian is
    Experienced
    . Learn about Asthma in Children.
    See more Asthma in Children experts
  • Chronic Cough
    Dr. Tachdjian is
    Experienced
    . Learn about Chronic Cough.
    See more Chronic Cough experts
  • Chronic Rhinosinusitis with Nasal Polyps (CRSwNP)
    Dr. Tachdjian is
    Experienced
    . Learn about Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).
    See more Chronic Rhinosinusitis with Nasal Polyps (CRSwNP) experts
  • Complement Component 2 Deficiency
    Dr. Tachdjian is
    Experienced
    . Learn about Complement Component 2 Deficiency.
    See more Complement Component 2 Deficiency experts
  • Conjunctivitis (Pink Eye)
    Dr. Tachdjian is
    Experienced
    . Learn about Conjunctivitis (Pink Eye).
    See more Conjunctivitis (Pink Eye) experts
View All 10 Experienced Conditions
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