David C. Klonoff, M.D.
NPI 1306882949ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Burlingame, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Burlingame, California, trained at University of California, San Francisco School of Medicine (class of 1976). Part D covered 56 prescriptions written in 2024. Embecta Corp. was the largest of 4 companies reporting payments in 2025, $917.27 in all, mostly travel and lodging.
Overview
| NPI | 1306882949 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 21, 2006 |
| Last updated in NPPES | Aug 30, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | G35726 | CA |
| Internal Medicine | 207R00000X | G35726 | 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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 56 · 113 30-day fills |
|---|---|
| Total drug cost | $38,473 |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
Hospital affiliation
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$917.27 · 9 payments from 4 companies
- 2024$23,938 · 11 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Embecta Corp. | $614.12 | 2 |
| Medtronic, Inc. | $163.49 | 4 |
| Novo Nordisk Inc | $123.93 | 2 |
| Abbott Laboratories | $15.73 | 1 |
What the 2025 payments were for
- Travel and Lodging$626.02 · 3 payments
- Food and Beverage$291.25 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Endocrinology, Diabetes & Metabolism providers in Burlingame
- 1447709746
- 1184132904
- 1306811906
- 1437127560
- 1760829493
- 1578730438
- 1861833899
- 1821002783
All Internal Medicine, Endocrinology, Diabetes & Metabolism providers in California →