Dennis L. Clark, MD
NPI 1699700849ActiveIndividual· Internal Medicine· Long Beach, CA
Internal Medicine (MD) with Prohealth Partners, A Medical Group, practicing in Long Beach, California. Their prescriptions cost Medicare Part D more than their services did: $1,175,045 for 8,861 claims, against $102,905 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 12 companies reporting payments in 2025, $944.74 in all, mostly food and beverage.
Overview
| NPI | 1699700849 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 12, 2006 |
| Last updated in NPPES | Sep 7, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G25400 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 144 |
|---|---|
| Services billed | 2,292 across 36 procedure codes |
| Paid by Medicare | $102,905 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,861 · 17,590 30-day fills |
|---|---|
| Patients | 438 |
| Total drug cost | $1,175,045 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1972 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Prohealth Partners, A Medical GroupLong Beach, CA · 239 clinicians
Other facilities
- Divine Pearl Home HealthHome health agency · Anaheim, CA
Industry payments (Open Payments)
- 2025$944.74 · 40 payments from 12 companies
- 2024$1,093 · 44 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $291.26 | 11 |
| Astrazeneca Pharmaceuticals LP | $273.30 | 12 |
| Lilly USA, LLC | $71.03 | 3 |
| Exact Sciences Corporation | $55.57 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $47.07 | 3 |
What the 2025 payments were for
- Food and Beverage$944.74 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 298 internal medicine physicians in Long Beach · All internal medicine physicians in California