Kevin Randal Guck, OD
NPI 1356064075ActiveIndividual· Optometrist· San Clemente, CA
Optometrist (OD) in San Clemente, California, trained at Pacific University - College of Optometry (class of 2022). Their prescriptions cost Medicare Part D more than their services did: $633,859 for 473 claims, against $6,833 paid for services in 2024. Biotissue Holdings Inc. was the largest of 13 companies reporting payments in 2025, $2,696 in all, mostly food and beverage.
Overview
| NPI | 1356064075 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Sep 20, 2022 |
| Last updated in NPPES | Sep 20, 2022 |
| Certified by provider | Sep 20, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 35267 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 58 |
|---|---|
| Services billed | 79 across 17 procedure codes |
| Paid by Medicare | $6,833 |
Part D prescriptions in 2024
| Prescriptions (claims) | 473 · 786 30-day fills |
|---|---|
| Patients | 220 |
| Total drug cost | $633,859 |
| Generic share | 41% of claims |
Education and affiliations
| Medical school | Pacific University - College of Optometry |
|---|---|
| Graduation year | 2022 |
| Medicare specialty | Optometry |
Medical group
- Ramin Tayani MD IncSan Clemente, CA · 16 clinicians
Industry payments (Open Payments)
- 2025$2,696 · 39 payments from 13 companies
- 2024$1,070 · 28 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biotissue Holdings Inc. | $1,453 | 6 |
| Alcon Vision LLC | $278.54 | 9 |
| Rxsight Inc | $276.72 | 3 |
| Abbvie Inc. | $183.50 | 3 |
| Oyster Point Pharma, Inc. | $118.58 | 5 |
What the 2025 payments were for
- Food and Beverage$1,792 · 35 payments
- Travel and Lodging$810.10 · 3 payments
- Entertainment$93.97 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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