Parminder Dhaliwal, MD
NPI 1811913759ActiveIndividual· Internal Medicine, Gastroenterology· Newport Beach, CA
Internal Medicine, Gastroenterology (MD) in Newport Beach, California, licensed in CA, with an NPI issued in July 2006. 480 Medicare patients in 2024, $155,067 paid; nearly all of their 722 Part D prescriptions were generic (95%). Medtronic, Inc. was the largest of 16 companies reporting payments in 2025, $2,242 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1811913759 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 14, 2006 |
| Last updated in NPPES | May 20, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A46401 | 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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 480 |
|---|---|
| Services billed | 1,583 across 40 procedure codes |
| Paid by Medicare | $155,067 |
Part D prescriptions in 2024
| Prescriptions (claims) | 722 · 1,405 30-day fills |
|---|---|
| Patients | 262 |
| Total drug cost | $28,243 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 1979 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$2,242 · 34 payments from 16 companies
- 2024$1,663 · 41 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $303.52 | 3 |
| Gilead Sciences, Inc. | $245.79 | 2 |
| Boston Scientific Corporation | $202.82 | 3 |
| Conmed Corporation | $197.92 | 4 |
| Janssen Biotech, Inc. | $182.56 | 3 |
What the 2025 payments were for
- Food and Beverage$2,242 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Newport Beach
- 1154587368
- 1215022405
- 1275996613
- 1518047604
- 1538100896
- 1538211917
- 1629257035
- 1699972844
- 1750303152
- 1750304671
- 1780002055
- 1831630243
All 43 gastroenterologists in Newport Beach · All gastroenterologists in California