Nalini Singh, M.D.
NPI 1619070539ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· San Dimas, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in San Dimas, California, trained at University of California, San Francisco School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $924,394 for 2,027 claims, against $34,163 paid for services in 2024. Abbott Laboratories was the largest of 5 companies reporting payments in 2025, $277.70 in all, mostly food and beverage.
Overview
| NPI | 1619070539 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 6, 2006 |
| Last updated in NPPES | Sep 21, 2021 |
| Certified by provider | Sep 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A61430 | 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 - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 132 |
|---|---|
| Services billed | 392 across 12 procedure codes |
| Paid by Medicare | $34,163 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,027 · 5,016 30-day fills |
|---|---|
| Patients | 249 |
| Total drug cost | $924,394 |
| Generic share | 50% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Emanate Health Foothill Presbyterian HospitalGlendora, CA
- Emanate Health Inter-Community HospitalCovina, CA
Industry payments (Open Payments)
- 2025$277.70 · 14 payments from 5 companies
- 2024$84.94 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $149.57 | 9 |
| Novo Nordisk Inc | $52.25 | 2 |
| Orthofix Medical, Inc. | $45.45 | 1 |
| Tandem Diabetes Care, Inc. | $15.43 | 1 |
| Rgh Enterprises LLC | $15.00 | 1 |
What the 2025 payments were for
- Food and Beverage$245.43 · 13 payments
- Education$32.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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