Raffi Tachdjian, M.D.
Allergy & Immunology Physician · Santa Monica, CA
Raffi Tachdjian, M.D. is an allergy & immunology physician with a practice address in Santa Monica, California, and NPI 1447376454, issued on Mar 21, 2007. Check the license (California A88034, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Raffi Tachdjian
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- A88034 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1301 20TH St Ste 380, Santa Monica, CA 90404
- Phone
- (310) 998-0060
- Enumerated
- Mar 21, 2007
- Record last updated
- Jul 2, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (310) 998-0063
- Medicare enrollment
- Enrolled (PECOS I20070514000329); may accept Medicare assignment
- Medical or professional school
- Morehouse School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Verify Raffi Tachdjian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A88034Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
81 Medicare Part D claims for 44 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $640,544.03
653 payments; by number, the most common kind was food and beverage; the largest payer was Pharming Healthcare, Inc. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- UC RegentsLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Raffi Tachdjian among 444 allergy & immunology physician records in California
Raffi Tachdjian, M.D. is one of 444 allergy & immunology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 38% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2001 · median 2004 among the 281 with a school on file
- Record last updated2018 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
All 444 in California → Every provider in Santa Monica → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Terrie Ahn, MDSanta Monica, CA 904041093166795
- Lorraine Anderson, MDSanta Monica, CA 904041013209568
- Sanny Chan, M.D., PH.D.Santa Monica, CA 904041043449788
- Aaron Chin, MDSanta Monica, CA 904041487116638
- Bernard Geller, M.D., PH.D.Santa Monica, CA 904041427132968
- Gary Gibbon, M.D.Santa Monica, CA 904041568484293
- Stacy Eui-Jung Lee, M.D.Santa Monica, CA 904041932158722
- Samantha Swain, M.D.Santa Monica, CA 904041871938951
Common questions
What is Raffi Tachdjian, M.D.'s NPI number?
Raffi Tachdjian, M.D.'s National Provider Identifier (NPI) is 1447376454, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Raffi Tachdjian, M.D. located?
The NPPES record lists a practice address at 1301 20TH St Ste 380, Santa Monica, CA, 90404. Phone: (310) 998-0060. Providers update this record themselves, so call before visiting.
How can I verify Raffi Tachdjian, M.D.'s license?
NPPES lists California license number A88034, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Raffi Tachdjian, M.D. prescribe under Medicare Part D?
In 2024, Raffi Tachdjian, M.D. had 81 Medicare Part D claims for 44 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.