Yshay Shlesinger, M.D.
NPI 1881799922ActiveIndividual· Internal Medicine· San Ramon, CA
Internal Medicine (M.D.) in San Ramon, California, licensed in CA, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $1,515,412 for 3,332 claims, against $91,940 paid for services in 2024. Novo Nordisk Inc was the largest of 29 companies reporting payments in 2025, $41,796 in all, mostly speaking and faculty fees. Lists John Muir Medical Center - Concord Campus and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1881799922 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 13, 2006 |
| Last updated in NPPES | Sep 2, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A65724 | CA |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | A 65724 | 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 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 - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 388 |
|---|---|
| Services billed | 867 across 9 procedure codes |
| Paid by Medicare | $91,940 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,332 · 7,846 30-day fills |
|---|---|
| Patients | 366 |
| Total drug cost | $1,515,412 |
| Generic share | 56% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- San Ramon Regional Medical CenterSan Ramon, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
- Sutter Roseville Medical CenterRoseville, CA
Industry payments (Open Payments)
- 2025$41,796 · 189 payments from 29 companies
- 2024$35,444 · 232 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $31,020 | 56 |
| Corcept Therapeutics | $7,863 | 5 |
| Dexcom, Inc. | $378.02 | 9 |
| Abbott Laboratories | $271.63 | 7 |
| Lilly USA, LLC | $258.38 | 10 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$28,103 · 11 payments
- Consulting Fee$7,800 · 2 payments
- Food and Beverage$4,525 · 171 payments
- Travel and Lodging$1,368 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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