Garineh Ovanessoff, M.D.
NPI 1669625851ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Phoenix, AZ
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Phoenix, Arizona, trained at New York Medical College (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $817,584 for 1,983 claims, against $22,418 paid for services in 2024. Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $161.40 in all, mostly food and beverage.
Overview
| NPI | 1669625851 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 31, 2008 |
| Last updated in NPPES | Oct 7, 2025 |
| Certified by provider | Oct 7, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 48635 | AZ |
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 - Internal Medicine (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 93 |
|---|---|
| Services billed | 392 across 15 procedure codes |
| Paid by Medicare | $22,418 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,983 · 4,011 30-day fills |
|---|---|
| Patients | 198 |
| Total drug cost | $817,584 |
| Generic share | 42% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Sjhmc Physician ServicesGilbert, AZ · 646 clinicians
Hospital affiliations
- Chandler Regional Medical CenterChandler, AZ
- St Josephs Hospital and Medical CenterPhoenix, AZ
- Yavapai Regional Medical CenterPrescott, AZ
Industry payments (Open Payments)
- 2025$161.40 · 3 payments from 2 companies
- 2024$204.77 · 13 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $141.60 | 2 |
| Abbott Laboratories | $19.80 | 1 |
What the 2025 payments were for
- Food and Beverage$161.40 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 endocrinologists in Phoenix · All endocrinologists in Arizona