Mandeep Ayer, M.D.
NPI 1205817111ActiveIndividual· Internal Medicine· Los Gatos, CA
Internal Medicine (M.D.) in Los Gatos, California, licensed in CA, with an NPI issued in November 2005. Their prescriptions cost Medicare Part D more than their services did: $610,190 for 7,031 claims, against $202,200 paid for services in 2024. Amgen Inc. was the largest of 10 companies reporting payments in 2025, $300.69 in all, mostly food and beverage. Lists El Camino Health and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1205817111 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 8, 2005 |
| Last updated in NPPES | May 2, 2021 |
| Certified by provider | May 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A42228 | CA |
| Specialist | 174400000X | A42228 | 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 | 374 |
|---|---|
| Services billed | 3,098 across 21 procedure codes |
| Paid by Medicare | $202,200 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,031 · 17,047 30-day fills |
|---|---|
| Patients | 546 |
| Total drug cost | $610,190 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1978 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- El Camino HealthMountain View, CA
- Good Samaritan HospitalSan Jose, CA
- Stanford Health CareStanford, CA
Other facilities
- Sequoia Home HealthHome health agency · Milpitas, CA
Industry payments (Open Payments)
- 2025$300.69 · 14 payments from 10 companies
- 2024$326.68 · 16 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $73.48 | 3 |
| Lilly USA, LLC | $42.02 | 2 |
| Pfizer Inc. | $35.66 | 2 |
| Novo Nordisk Inc | $31.12 | 1 |
| Exact Sciences Corporation | $25.26 | 1 |
What the 2025 payments were for
- Food and Beverage$300.69 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 67 internal medicine physicians in Los Gatos · All internal medicine physicians in California