David Zarian, MD
NPI 1629179288 · Internal Medicine Physician · Encino, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Zarian, MD is a Internal Medicine Physician provider in Encino, CA (NPI 1629179288).
Provider details
- NPI number
- 1629179288
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A43580 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
8,422 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 2,593 | $132 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,820 | $94 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 | 480 | $56 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 313 | $117 |
| Exam of Neurobehavioral Status, First Hour96116 | 250 | $93 |
| Annual Depression Screening, 5 to 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 249 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 628 | 124 |
| Celecoxib | 545 | 118 |
| Diclofenac Sodium | 414 | 82 |
| Atorvastatin Calcium | 414 | 84 |
| Levothyroxine Sodium | 412 | 76 |
| Losartan Potassium | 400 | 82 |
| Linaclotidebrand: Linzess | 383 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,220 across 88 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-26
- Last updated
- 2009-12-17
Frequently asked questions
- What is David Zarian's NPI number?
- David Zarian's National Provider Identifier (NPI) is 1629179288, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Zarian's specialty?
- David Zarian is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Zarian located?
- David Zarian's practice location on file with NPPES is 16661 Ventura Blvd, Encino, CA 91436.
- What is David Zarian's phone number?
- The practice phone number listed in the NPPES registry for David Zarian is (818) 986-7399.
- Does David Zarian accept Medicare?
- David Zarian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Zarian's NPI active?
- Yes — David Zarian's NPI (1629179288) is active in the NPPES registry as of the last update on 2009-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.