David Alan Cahn, MD
NPI 1689762205ActiveIndividual· Specialist· San Jose, CA
Specialist (MD) in San Jose, California, trained at Jefferson Medical College of Thomas Jefferson University (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $2,243,534 for 10,630 claims, against $171,737 paid for services in 2024. Abbvie Inc. was the largest of 40 companies reporting payments in 2025, $4,389 in all, mostly food and beverage.
Overview
| NPI | 1689762205 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 10, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | G070021 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 269 |
|---|---|
| Services billed | 2,040 across 36 procedure codes |
| Paid by Medicare | $171,737 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,630 · 22,160 30-day fills |
|---|---|
| Patients | 519 |
| Total drug cost | $2,243,534 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Hamilton Avenue Medical Group IncSan Jose, CA · 3 clinicians
Hospital affiliations
- El Camino HealthMountain View, CA
- Good Samaritan HospitalSan Jose, CA
- Santa Clara Valley Medical CenterSan Jose, CA
- Stanford Health CareStanford, CA
Other facilities
- Health Link Home Health AgencyHome health agency · San Francisco, CA
- Sequoia Home HealthHome health agency · Milpitas, CA
Industry payments (Open Payments)
- 2025$4,389 · 249 payments from 40 companies
- 2024$11,115 · 270 payments from 35 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $622.62 | 47 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $378.88 | 18 |
| Pfizer Inc. | $306.57 | 14 |
| Glaxosmithkline, LLC. | $289.44 | 13 |
| Novo Nordisk Inc | $276.24 | 15 |
What the 2025 payments were for
- Food and Beverage$4,389 · 249 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Specialist providers in San Jose
- 1174516264
- 1205893286
- 1235158254
- 1275626897
- 1427136266
- 1609989417
- 1699706556
- 1720145147
- 1740339555
- 1851326672
- 1851334403
- 1922005636
All 190 Specialist providers in San Jose · All Specialist providers in California