Hovanes Ter-Zakarian, MD
NPI 1639121981 · Family Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hovanes Ter-Zakarian, MD is a Family Medicine Physician provider in Los Angeles, CA (NPI 1639121981).
Provider details
- NPI number
- 1639121981
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A45597 (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
20 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
7,093 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) |
|---|---|---|
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 2,406 | $83 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,228 | $130 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 949 | $9 |
| Test for Allergy Using Allergenic Extract95004 | 933 | $4 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 826 | $93 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 182 | $15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 284 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,323 | 152 |
| Amlodipine Besylate | 1,070 | 119 |
| Rosuvastatin Calcium | 906 | 97 |
| Metoprolol Succinate | 881 | 95 |
| Diclofenac Sodium | 851 | 146 |
| Clonidine Hcl | 850 | 93 |
| Ibuprofen | 796 | 132 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,961 across 80 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
- 2006-05-16
- Last updated
- 2009-12-10
Frequently asked questions
- What is Hovanes Ter-Zakarian's NPI number?
- Hovanes Ter-Zakarian's National Provider Identifier (NPI) is 1639121981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hovanes Ter-Zakarian's specialty?
- Hovanes Ter-Zakarian is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hovanes Ter-Zakarian located?
- Hovanes Ter-Zakarian's practice location on file with NPPES is 5250 Santa Monica Blvd Ste 310, Los Angeles, CA 90029-1255.
- What is Hovanes Ter-Zakarian's phone number?
- The practice phone number listed in the NPPES registry for Hovanes Ter-Zakarian is (323) 663-9831.
- Does Hovanes Ter-Zakarian accept Medicare?
- Hovanes Ter-Zakarian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hovanes Ter-Zakarian's NPI active?
- Yes — Hovanes Ter-Zakarian's NPI (1639121981) is active in the NPPES registry as of the last update on 2009-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.