David Zarian, MD
Internal Medicine Physician · Encino, CA
David Zarian, MD is an internal medicine physician with a practice address in Encino, California, and NPI 1629179288, issued on Sep 26, 2006. Check the license (California A43580, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Zarian
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A43580 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16661 Ventura Blvd, Encino, CA 91436
- Phone
- (818) 986-7399
- Enumerated
- Sep 26, 2006
- Record last updated
- Dec 17, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicaid ID
- 00A435801 CA
- Medicare enrollment
- Enrolled (PECOS I20100303000787); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 16661 Ventura Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paul Brogan, MFTMarriage & Family Therapist1366685539
- Erin Cantwell, PHDPsychologist1629429295
- Jessica ChilesPsychologist1992245914
Verify David Zarian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A43580Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.8 times the Medicare Part D claims of the average internal medicine physician in 2024
18,422 Medicare Part D claims for 502 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 194 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium628 claims
- Celecoxib545 claims
- Atorvastatin Calcium414 claims
- Diclofenac Sodium414 claims
- Levothyroxine Sodium412 claims
- Losartan Potassium400 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.
The MIPS final score for 2023 (Medicare payment program): 20.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,220.38
88 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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.
David Zarian among 17,696 internal medicine physician records in California
David Zarian, MD 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1980 · median 2004 among the 11,065 with a school on file
- Record last updated2009 · 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).
44 internal medicine physician records list a practice address in Encino
They are 44 of the 3,136 NPPES records with a practice address in Encino, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Encino → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Isaac Adatto, M.D.Encino, CA 914361437263845
- Esfandiar Esfandiarifard, MDEncino, CA 914361063514479
- Darius Gharib, M.D.Encino, CA 914361013929918
- Jasmin Javaherian, D.OEncino, CA 914361447294715
- David Kayne, M.D.Encino, CA 914361144334533
- Melvin Khaw, M.D.Encino, CA 914361487624045
- Allan Klass, M DEncino, CA 914361346261039
- Ulf Lando, MDEncino, CA 914361487769063
Common questions
What is David Zarian, MD's NPI number?
David Zarian, MD's National Provider Identifier (NPI) is 1629179288, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Zarian, MD located?
The NPPES record lists a practice address at 16661 Ventura Blvd, Encino, CA, 91436. Phone: (818) 986-7399. Providers update this record themselves, so call before visiting.
How can I verify David Zarian, MD's license?
NPPES lists California license number A43580, 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 David Zarian, MD prescribe under Medicare Part D?
In 2024, David Zarian, MD had 18,422 Medicare Part D claims for 502 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is David Zarian, MD's MIPS final score?
The 2023 MIPS final score is 20.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.