David W. Hirshfield, MD
NPI 1538127402ActiveIndividual· Internal Medicine· La Jolla, CA
Internal Medicine (MD) in La Jolla, California, trained at University of Colorado School of Medicine, Denver (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $352,813 for 2,766 claims, against $23,196 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 22 companies reporting payments in 2025, $1,359 in all, mostly food and beverage.
Overview
| NPI | 1538127402 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 2, 2006 |
| Last updated in NPPES | Feb 3, 2022 |
| Certified by provider | Feb 3, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A61886 | CA |
| Internal Medicine | 207R00000X | D0057896 | MD |
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 | 89 |
|---|---|
| Services billed | 314 across 24 procedure codes |
| Paid by Medicare | $23,196 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,766 · 6,049 30-day fills |
|---|---|
| Patients | 257 |
| Total drug cost | $352,813 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Monica Perlman MD IncSan Diego, CA · 364 clinicians
Hospital affiliation
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Other facilities
- Pacific Point Hcs IncHome health agency · San Diego, CA
Industry payments (Open Payments)
- 2025$1,359 · 56 payments from 22 companies
- 2024$1,303 · 53 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $453.86 | 22 |
| Lilly USA, LLC | $183.99 | 6 |
| Phadia US Inc. | $94.03 | 1 |
| Amgen Inc. | $63.63 | 3 |
| Novo Nordisk Inc | $60.79 | 3 |
What the 2025 payments were for
- Food and Beverage$1,359 · 56 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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