Raffi Tachdjian is a Rheumatology/Immunology physician affiliated with University of California, Los Angeles. OpenAlex indexes 142 publications with 2,221 citations (h-index 22).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
1301 20th St Ste 380
Santa Monica, CA 90404
Telephone
310-998-0060Registry record last updated 2 Jul 2018.
Industry payments
40 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- ADMA BioManufacturing LLCProgram year202511 payments$223,305openpaymentsdata.cms.gov ↗
- CSL BehringProgram year2025131 payments$158,288openpaymentsdata.cms.gov ↗
- Pharming Healthcare, Inc.Program year2025185 payments$153,442openpaymentsdata.cms.gov ↗
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2023)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Blood & clotting
100%Salt solutions100%Sodium Chloride100%Part D<11 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Effective long‐term prophylaxis with lanadelumab in adolescents with hereditary angioedema: <scp>EMPOWER</scp> / <scp>ENABLE</scp>
Pediatric Allergy and Immunology
2025 - Long-Term Safety and Effectiveness of Sebetralstat: Interim Analysis of KONFIDENT-S Open-label Extension
The Journal of Allergy and Clinical Immunology In Practice
2025
Similar KOLs
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A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”