Vache Chakmakian, M.D.
Family Medicine Physician · Ontario, CA
Vache Chakmakian, M.D. is a family medicine physician with a practice address in Ontario, California, and NPI 1316974652, issued on Jun 26, 2006. Check the license (California G61948, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Vache Chakmakian
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G61948 CA
Self-reported in NPPES; status is on the state search - Practice location
- 437 N Euclid Ave, Ontario, CA 91762
- Phone
- (909) 988-2555
- Enumerated
- Jun 26, 2006
- Record last updated
- Sep 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 00G619480 CA
- Medicare enrollment
- Enrolled (PECOS I20041203000329); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 437 N Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Beltre EspinosaPhysician Assistant1811765944
- Debra Blanco, PA-CPhysician Assistant1740372366
- Sujay DayalInternal Medicine Physician1740920966
- Hawanatu Fofanah, NPFamily Nurse Practitioner1831561448
- Gryan GarciaPsychiatric/Mental Health Nurse Practitioner1578103800
- Khan Lau, O.D.Corneal and Contact Management Optometrist1730229345
Verify Vache Chakmakian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G61948Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average family medicine physician in 2024
2,350 Medicare Part D claims for 211 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium305 claims
- Metformin Hcl172 claims
- Lisinopril152 claims
- Hydrochlorothiazide151 claims
- Losartan Potassium137 claims
- Amlodipine Besylate115 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.
Bills Medicare through one group practice
- Dap Health IncCoachella, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vache Chakmakian among 17,133 family medicine physician records in California
Vache Chakmakian, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1986 · median 2005 among the 10,652 with a school on file
- Record last updated2020 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Ontario → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joanne Benzor, MDOntario, CA 917621700977220
- Mauricio Bonilla, MDOntario, CA 917621801424866
- Nicholas Ely, MDOntario, CA 917621770089757
- Rashmi Godugu, MDOntario, CA 917621669049391
- Charles Ho, M.D.Ontario, CA 917621801902051
- Chao-Ming Lin, MDOntario, CA 917621457428351
- Luis A Lomeli, M.D.Ontario, CA 917621124261896
- Naila Mubashar, M.DOntario, CA 917621376906719
Common questions
What is Vache Chakmakian, M.D.'s NPI number?
Vache Chakmakian, M.D.'s National Provider Identifier (NPI) is 1316974652, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Vache Chakmakian, M.D. located?
The NPPES record lists a practice address at 437 N Euclid Ave, Ontario, CA, 91762. Phone: (909) 988-2555. Providers update this record themselves, so call before visiting.
How can I verify Vache Chakmakian, M.D.'s license?
NPPES lists California license number G61948, 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 Vache Chakmakian, M.D. prescribe under Medicare Part D?
In 2024, Vache Chakmakian, M.D. had 2,350 Medicare Part D claims for 211 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.