Edwin S. Hayashi, M.D.
NPI 1295797397ActiveIndividual· Surgery· Pismo Beach, CA
Surgery (M.D.) in Pismo Beach, California, trained at University of California, San Francisco School of Medicine (class of 1990). 852 Medicare patients in 2024, $326,824 paid; nearly all of their 353 Part D prescriptions were generic (99%). Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $1,297 in all, mostly travel and lodging.
Overview
| NPI | 1295797397 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 4, 2006 |
| Last updated in NPPES | Feb 9, 2023 |
| Certified by provider | Feb 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | G74276 | CA |
| Surgery, Vascular Surgery | 2086S0129X | G74276 | 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 - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 852 |
|---|---|
| Services billed | 1,801 across 146 procedure codes |
| Paid by Medicare | $326,824 |
Part D prescriptions in 2024
| Prescriptions (claims) | 353 · 357 30-day fills |
|---|---|
| Patients | 287 |
| Total drug cost | $5,154 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | General Surgery |
| Secondary specialties | Vascular Surgery |
| Telehealth | Offers telehealth |
Medical group
- Associated Surgeons of San Luis ObispoTempleton, CA · 12 clinicians
Hospital affiliations
- Adventist Health Sierra VistaSan Luis Obispo, CA
- Adventist Health Twin CitiesTempleton, CA
- French Hospital Medical CenterSan Luis Obispo, CA
- Marian Regional Medical CenterSanta Maria, CA
Industry payments (Open Payments)
- 2025$1,297 · 17 payments from 2 companies
- 2024$182.97 · 11 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $1,191 | 16 |
| Intuitive Surgical, Inc. | $105.98 | 1 |
What the 2025 payments were for
- Travel and Lodging$890.44 · 9 payments
- Food and Beverage$300.39 · 7 payments
- Education$105.98 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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