Nathaniel Aidan Blecher, MD
NPI 1487215380ActiveIndividual· Ophthalmology· Palo Alto, CA
Ophthalmology (MD) in Palo Alto, California, trained at University of Pittsburgh School of Medicine (class of 2019). Their prescriptions cost Medicare Part D more than their services did: $62,699 for 1,144 claims, against $26,748 paid for services in 2024. Sight Sciences, Inc. was the largest of 3 companies reporting payments in 2025, $239.21 in all, mostly food and beverage.
Overview
| NPI | 1487215380 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 23, 2019 |
| Last updated in NPPES | Aug 25, 2025 |
| Certified by provider | Aug 25, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A202381 | CA |
| Ophthalmology | 207W00000X | A202381 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 177 |
|---|---|
| Services billed | 267 across 42 procedure codes |
| Paid by Medicare | $26,748 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,144 · 2,136 30-day fills |
|---|---|
| Patients | 578 |
| Total drug cost | $62,699 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | University of Pittsburgh School of Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Ophthalmology |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Stanford Health CareStanford, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
Industry payments (Open Payments)
- 2025$239.21 · 3 payments from 3 companies
- 2024$601.37 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sight Sciences, Inc. | $146.74 | 1 |
| Alcon Vision LLC | $51.67 | 1 |
| Abbvie Inc. | $40.80 | 1 |
What the 2025 payments were for
- Food and Beverage$239.21 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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