Navneet Kaur Singh, D.O.
NPI 1790181311ActiveIndividual· Internal Medicine· Santa Ana, CA
Internal Medicine (D.O.) with Mesa Pulmonary Group Inc and 1 other group, practicing in Santa Ana, California. Their prescriptions cost Medicare Part D more than their services did: $1,438,079 for 2,692 claims, against $206,932 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 21 companies reporting payments in 2025, $2,344 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1790181311 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Nov 10, 2014 |
| Last updated in NPPES | Nov 10, 2022 |
| Certified by provider | Nov 10, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A14431 | CA |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 20A14431 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 20A14431 | 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 - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 557 |
|---|---|
| Services billed | 2,624 across 39 procedure codes |
| Paid by Medicare | $206,932 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,692 · 3,569 30-day fills |
|---|---|
| Patients | 426 |
| Total drug cost | $1,438,079 |
| Generic share | 47% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical groups
- Mesa Pulmonary Group IncCosta Mesa, CA · 6 clinicians
- Strongkids Medical Group IncSanta Ana, CA · 3 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$2,344 · 104 payments from 21 companies
- 2024$1,714 · 71 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $281.83 | 19 |
| Verona Pharma, Inc. | $277.25 | 13 |
| Genzyme Corporation | $273.11 | 10 |
| Glaxosmithkline, LLC. | $247.71 | 12 |
| Regeneron Healthcare Solutions, Inc. | $235.54 | 8 |
What the 2025 payments were for
- Food and Beverage$2,344 · 104 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 72 internal medicine physicians in Santa Ana · All internal medicine physicians in California