Peter Heseltine, MD, FACP
NPI 1487771432ActiveIndividual· Internal Medicine, Infectious Disease· Orange, CA
Internal Medicine, Infectious Disease (MD, FACP) with Uc Regents, practicing in Orange, California. Their prescriptions cost Medicare Part D more than their services did: $42,855 for 32 claims, against $4,146 paid for services in 2024. Lists Uci Health-Orange as a hospital affiliation.
Overview
| NPI | 1487771432 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, FACP |
| Sole proprietor | No |
| NPI issued | Mar 23, 2007 |
| Last updated in NPPES | Nov 21, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | A29490 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 84 across 7 procedure codes |
| Paid by Medicare | $4,146 |
Part D prescriptions in 2024
| Prescriptions (claims) | 32 · 32 30-day fills |
|---|---|
| Total drug cost | $42,855 |
| Generic share | 66% of claims |
Education and affiliations
| Graduation year | 1971 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Infectious Disease |
| Telehealth | Offers telehealth |
Medical group
- Uc RegentsOrange, CA · 319 clinicians
Hospital affiliation
- Uci Health-OrangeOrange, CA
Other facilities
- Oso Home Care, IncHome health agency · Irvine, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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