Zarmen Israelian, M.D.
NPI 1417911314ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Glendale, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Adventist Health Physicians Network, practicing in Glendale, California. Their prescriptions cost Medicare Part D more than their services did: $6,418,397 for 20,776 claims, against $154,072 paid for services in 2024. Amgen Inc. was the largest of 26 companies reporting payments in 2025, $2,105 in all, mostly food and beverage. Lists Glendale Adventist Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1417911314 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 17, 2006 |
| Last updated in NPPES | Jul 11, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A56455 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,182 |
|---|---|
| Services billed | 2,151 across 13 procedure codes |
| Paid by Medicare | $154,072 |
Part D prescriptions in 2024
| Prescriptions (claims) | 20,776 · 26,887 30-day fills |
|---|---|
| Patients | 1,102 |
| Total drug cost | $6,418,397 |
| Generic share | 42% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Endocrinology |
Medical group
- Adventist Health Physicians NetworkSaint Helena, CA · 628 clinicians
Hospital affiliations
- Glendale Adventist Medical CenterGlendale, CA
- Glendale Mem Hospital & Hlth CenterGlendale, CA
- Usc Verdugo Hills HospitalGlendale, CA
Industry payments (Open Payments)
- 2025$2,105 · 94 payments from 26 companies
- 2024$1,567 · 81 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $331.74 | 14 |
| Novo Nordisk Inc | $266.51 | 13 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $206.44 | 10 |
| Dexcom, Inc. | $172.66 | 8 |
| Ascendis Pharma Endocrinology Inc | $147.30 | 6 |
What the 2025 payments were for
- Food and Beverage$2,105 · 94 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 endocrinologists in Glendale · All endocrinologists in California