NPPES file of Aug 9, 2026

Zareh Haigazoun Vartivarian, M.D.

Specialist · West Hills, CA

Zareh Haigazoun Vartivarian, M.D. is a specialist with a practice address in West Hills, California, and NPI 1174544001, issued on Jul 23, 2006. Check the license (California C40219, 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
1174544001
Name
Zareh Haigazoun Vartivarian
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
C40219 CA
Self-reported in NPPES; status is on the state search
Practice location
7320 Woodlake Ave, West Hills, CA 91307
Phone
(818) 883-8477
Enumerated
Jul 23, 2006
Record last updated
Nov 1, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(818) 883-2223
Medicare enrollment
Enrolled (PECOS I20111130000361); accepts Medicare assignment
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 7320 Woodlake Ave

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

  1. Roger Amerian, MDPulmonary Disease Physician1033105614
  2. Calin Arimie, MDGastroenterology Physician1831277847
  3. Shahab Attarchi, MDInternal Medicine Physician1902982408
  4. Mariam Bakhtary, MDInfectious Disease Physician1134492895
  5. Frank Candela, M.D., F.A.C.S.Surgery Physician1699700492
  6. Ron Chitayat, MDGastroenterology Physician1912008657

Verify Zareh Haigazoun Vartivarian 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 C40219
    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
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average specialist in 2024

35 Medicare Part D claims for 19 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 11 claims were for opioids.

  1. Zareh Vartivarian35
  2. Specialty average1,380

Most prescribed

  1. Cephalexin19 claims
  2. Acetaminophen-Codeine11 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.

Zareh Haigazoun Vartivarian among 5,749 specialist records in California

Zareh Haigazoun Vartivarian, 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
  • Graduated1979 · median 1989 among the 1,075 with a school on file
  • Record last updated2011 · 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).

16 specialist records list a practice address in West Hills

They are 16 of the 708 NPPES records with a practice address in West Hills, and 5,749 specialist records in California.

The 8 specialist records with the nearest ZIP codes

  1. Shervin Aminpour, MDWest Hills, CA 913071326022708
  2. Cyrus Badii, M.D.West Hills, CA 913071134274350
  3. Renee Cotter, MD A PROFESSIONAL COWest Hills, CA 913071861569428
  4. Irene Faust, M.D.West Hills, CA 913071720019243
  5. Carol First, MDWest Hills, CA 913071417971185
  6. Douglas Gellerman, MDWest Hills, CA 913071639181530
  7. Marshall Graditor, M.D.West Hills, CA 913071275591349
  8. Niloufar Guiv, M.D.West Hills, CA 913071124028345

Common questions

What is Zareh Haigazoun Vartivarian, M.D.'s NPI number?

Zareh Haigazoun Vartivarian, M.D.'s National Provider Identifier (NPI) is 1174544001, issued on Jul 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Zareh Haigazoun Vartivarian, M.D. located?

The NPPES record lists a practice address at 7320 Woodlake Ave, West Hills, CA, 91307. Phone: (818) 883-8477. Providers update this record themselves, so call before visiting.

How can I verify Zareh Haigazoun Vartivarian, M.D.'s license?

NPPES lists California license number C40219, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Zareh Haigazoun Vartivarian, M.D. prescribe under Medicare Part D?

In 2024, Zareh Haigazoun Vartivarian, M.D. had 35 Medicare Part D claims for 19 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.