Mary Demirjian, O.D.
Optometrist · Encino, CA
Mary Demirjian, O.D. is an optometrist with a practice address in Encino, California, and NPI 1043449655, issued on Jul 6, 2009. Check the license (California 13710, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Demirjian
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 13710 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17283 Ventura Blvd, Encino, CA 91316
- Phone
- (818) 990-0300
- Enumerated
- Jul 6, 2009
- Record last updated
- Aug 8, 2022
- Fax
- (818) 990-4854
- Medicaid IDs
- 1140139 CA
8495739 CA - Medicare enrollment
- Enrolled (PECOS I20091119000418); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 2009
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 17283 Ventura Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hetavi PatelOptometrist1346061918
Verify Mary Demirjian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 13710Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average optometrist in 2024
16 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 69% 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: $978.10
20 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 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.
Mary Demirjian among 8,308 optometrist records in California
Mary Demirjian, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2009 · median 2008 among the 3,573 with a school on file
- Record last updated2022 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 optometrist records list a practice address in Encino
They are 21 of the 3,136 NPPES records with a practice address in Encino, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Encino → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Aida AminEncino, CA 913161154970614
- Vahe Arutyunyan, ODEncino, CA 913161548779952
- Jamie Cohen, O.D.Encino, CA 913161588952386
- Harry Enenstein, O. D.Encino, CA 913161063498616
- Flordeliz Grace Gonzales, O.DEncino, CA 913161346775319
- Ani Kazarian, O.D.Encino, CA 913161790231009
- Haris MirzaEncino, CA 913161467153973
- Hetavi PatelEncino, CA 913161346061918
Common questions
What is Mary Demirjian, O.D.'s NPI number?
Mary Demirjian, O.D.'s National Provider Identifier (NPI) is 1043449655, issued on Jul 6, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mary Demirjian, O.D. located?
The NPPES record lists a practice address at 17283 Ventura Blvd, Encino, CA, 91316. Phone: (818) 990-0300. Providers update this record themselves, so call before visiting.
How can I verify Mary Demirjian, O.D.'s license?
NPPES lists California license number 13710, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Demirjian, O.D. prescribe under Medicare Part D?
In 2024, Mary Demirjian, O.D. had 16 Medicare Part D claims; the average among optometrist prescribers was 277. 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.