Lara Atchabahian Samourjian, M.D.
Internal Medicine Physician · Burbank, CA
Lara Atchabahian Samourjian, M.D. is an internal medicine physician with a practice address in Burbank, California, and NPI 1144648262, issued on Apr 5, 2014. Check the license (California A138400, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lara Atchabahian Samourjian
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A138400 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4323 W Riverside Dr, Burbank, CA 91505
- Phone
- (818) 556-2700
- Enumerated
- Apr 5, 2014
- Record last updated
- Feb 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (818) 295-3450
- Medicaid ID
- LA3232267556 CA
- Medicare enrollment
- Enrolled (PECOS I20171006002611); may accept Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4323 W Riverside Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lara Atchabahian Samourjian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A138400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,035 Medicare Part D claims for 137 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium109 claims
- Amlodipine Besylate68 claims
- Lisinopril53 claims
- Levothyroxine Sodium45 claims
- Losartan Potassium32 claims
- Fluticasone Propionate30 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.
Lara Atchabahian Samourjian among 17,696 internal medicine physician records in California
Lara Atchabahian Samourjian, M.D. is one of 17,696 internal medicine 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 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
64 internal medicine physician records list a practice address in Burbank
They are 64 of the 3,375 NPPES records with a practice address in Burbank, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Burbank → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Angela Adelman, M.D.Burbank, CA 915051548262017
- Maral Touna Arpi Donabedian, MDBurbank, CA 915051588622906
- Eric Feit, M.D.Burbank, CA 915051588654875
- Mark Gerard, MDBurbank, CA 915051023036670
- Michael Goldberg, M.D.Burbank, CA 915051669402764
- Richard Kroop, MDBurbank, CA 915051992735591
- Susanna Lansangan, M.D.Burbank, CA 915051780688036
- Sharad Patel, M.D.Burbank, CA 915051548236243
Common questions
What is Lara Atchabahian Samourjian, M.D.'s NPI number?
Lara Atchabahian Samourjian, M.D.'s National Provider Identifier (NPI) is 1144648262, issued on Apr 5, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Lara Atchabahian Samourjian, M.D. located?
The NPPES record lists a practice address at 4323 W Riverside Dr, Burbank, CA, 91505. Phone: (818) 556-2700. Providers update this record themselves, so call before visiting.
How can I verify Lara Atchabahian Samourjian, M.D.'s license?
NPPES lists California license number A138400, 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 Lara Atchabahian Samourjian, M.D. prescribe under Medicare Part D?
In 2024, Lara Atchabahian Samourjian, M.D. had 1,035 Medicare Part D claims for 137 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.