Ivaylo A. Vagliarsky, M.D.
NPI 1558324913ActiveIndividual· Internal Medicine, Gastroenterology· Bakersfield, CA
Internal Medicine, Gastroenterology (M.D.) with Silver Summit Medical Corporation, practicing in Bakersfield, California. Their prescriptions cost Medicare Part D more than their services did: $505,888 for 1,336 claims, against $152,001 paid for services in 2024. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $3,893 in all, mostly food and beverage. Lists Adventist Health Bakersfield as a hospital affiliation.
Overview
| NPI | 1558324913 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 7, 2006 |
| Last updated in NPPES | Jul 21, 2025 |
| Certified by provider | Jul 21, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A90756 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 690 |
|---|---|
| Services billed | 2,254 across 18 procedure codes |
| Paid by Medicare | $152,001 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,336 · 1,724 30-day fills |
|---|---|
| Patients | 275 |
| Total drug cost | $505,888 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Silver Summit Medical CorporationBakersfield, CA · 11 clinicians
Hospital affiliation
- Adventist Health BakersfieldBakersfield, CA
Industry payments (Open Payments)
- 2025$3,893 · 196 payments from 16 companies
- 2024$2,208 · 135 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $815.75 | 44 |
| Aimmune Therapeutics, Inc. | $664.08 | 51 |
| Janssen Biotech, Inc. | $591.42 | 22 |
| Gilead Sciences, Inc. | $434.06 | 12 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $350.48 | 23 |
What the 2025 payments were for
- Food and Beverage$3,808 · 195 payments
- Education$84.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 gastroenterologists in Bakersfield · All gastroenterologists in California