Tahir Haytoglu, MD
NPI 1932609054ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Corona, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Bashar G Saad MD Inc and 1 other group, practicing in Corona, California. Their prescriptions cost Medicare Part D more than their services did: $3,152,967 for 6,511 claims, against $5,594 paid for services in 2024. Dexcom, Inc. was the largest of 26 companies reporting payments in 2025, $3,631 in all, mostly food and beverage.
Overview
| NPI | 1932609054 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 15, 2018 |
| Last updated in NPPES | Apr 1, 2025 |
| Certified by provider | Apr 1, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A72482 | CA |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 291773 | NY |
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 | 34 |
|---|---|
| Services billed | 78 across 4 procedure codes |
| Paid by Medicare | $5,594 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,511 · 13,703 30-day fills |
|---|---|
| Patients | 828 |
| Total drug cost | $3,152,967 |
| Generic share | 38% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Endocrinology |
Medical groups
- Bashar G Saad MD IncSan Bernardino, CA · 3 clinicians
- Almoutaz Bellah Shakally MD, IncCorona, CA · 2 clinicians
Industry payments (Open Payments)
- 2025$3,631 · 200 payments from 26 companies
- 2024$3,195 · 182 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $378.89 | 34 |
| Abbott Laboratories | $334.17 | 18 |
| Amgen Inc. | $316.81 | 18 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $278.21 | 13 |
| Ascendis Pharma Endocrinology Inc | $277.50 | 12 |
What the 2025 payments were for
- Food and Beverage$3,631 · 200 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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