NPPES file of Aug 9, 2026

Garbis Kassabian, M.D.

Specialist · Mission Hills, CA

Garbis Kassabian, M.D. is a specialist with a practice address in Mission Hills, California, and NPI 1083692669, issued on Jan 4, 2006. Check the license (California G79982, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083692669
Name
Garbis Kassabian
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G79982 CA
Self-reported in NPPES; status is on the state search
Practice location
14901 Rinaldi St, Mission Hills, CA 91345
Phone
(818) 837-6830
Enumerated
Jan 4, 2006
Record last updated
Jan 3, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(818) 837-6832
Medicare enrollment
Enrolled (PECOS I20070706000279); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1993
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 14901 Rinaldi St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cynthia Beck, MDPediatrics Physician1720079130
  2. Don Clarke, M.D.Dermatology Physician1477557395
  3. Dorota Cymerska, OTR/LOccupational Therapist1194469965
  4. Romila Devendra, MDFamily Medicine Physician1649247719
  5. Jose Esparrago, M.D.Internal Medicine Physician1083616106
  6. Madalene Heng, M.D.Dermatology Physician1164404935

Verify Garbis Kassabian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license G79982
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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2.1 times the Medicare Part D claims of the average specialist in 2024

2,876 Medicare Part D claims for 448 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.

  1. Garbis Kassabian2,876
  2. Specialty average1,380

Most prescribed

  1. Albuterol Sulfate Hfa568 claims
  2. Trelegy Ellipta393 claims
  3. Fluticasone Propionate258 claims
  4. Breo Ellipta196 claims
  5. Breztri Aerosphere94 claims
  6. Anoro Ellipta92 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: $1,201.53

60 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Garbis Kassabian$1,201.53
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Garbis Kassabian among 5,749 specialist records in California

Garbis Kassabian, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated1993 · median 1989 among the 1,075 with a school on file
  • Record last updated2013 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California.

The 8 specialist records with the nearest ZIP codes

  1. Carole Chacon, CCCE, CLE, IBCLCMission Hills, CA 913451922218866
  2. Guangxiang (grace) Feng, MASSAGE THERAPISTMission Hills, CA 913451912840919
  3. Ramin Ganjianpour, M.D.Mission Hills, CA 913451447274782
  4. Shahram Kossari, M.D.Mission Hills, CA 913451487697132
  5. George Lagoyda, M.D.Granada Hills, CA 913441750747499
  6. Nita Mahajan, MDGranada Hills, CA 913441124205331
  7. Steve Naltsas, M.D.Granada Hills, CA 913441770505299
  8. Felix Leung, M.D.Sepulveda, CA 913431811078348

Common questions

What is Garbis Kassabian, M.D.'s NPI number?

Garbis Kassabian, M.D.'s National Provider Identifier (NPI) is 1083692669, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Garbis Kassabian, M.D. located?

The NPPES record lists a practice address at 14901 Rinaldi St, Mission Hills, CA, 91345. Phone: (818) 837-6830. Providers update this record themselves, so call before visiting.

How can I verify Garbis Kassabian, M.D.'s license?

NPPES lists California license number G79982, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Garbis Kassabian, M.D. prescribe under Medicare Part D?

In 2024, Garbis Kassabian, M.D. had 2,876 Medicare Part D claims for 448 beneficiaries; the average among specialist prescribers was 1,380. 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.