Demosthenes Gabriel Papamatheakis, MD
NPI 1326168600ActiveIndividual· Internal Medicine, Pulmonary Disease· San Diego, CA
Internal Medicine, Pulmonary Disease (MD) with Regents of the University of California, practicing in San Diego, California. Their prescriptions cost Medicare Part D more than their services did: $5,750,259 for 555 claims, against $23,215 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 2 companies reporting payments in 2025, $323.67 in all, mostly consulting fees. Lists Uc San Diego Health Hillcrest - Hillcrest Med Ctr as a hospital affiliation.
Overview
| NPI | 1326168600 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2007 |
| Last updated in NPPES | Sep 17, 2020 |
| Certified by provider | Sep 17, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | A101188 | 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 | 101 |
|---|---|
| Services billed | 258 across 21 procedure codes |
| Paid by Medicare | $23,215 |
Part D prescriptions in 2024
| Prescriptions (claims) | 555 · 603 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $5,750,259 |
| Generic share | 28% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of CaliforniaSan Diego, CA · 2,089 clinicians
Hospital affiliation
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Other facilities
- Select Specialty Hospital - San DiegoLong-term care hospital · San Diego, CA
Industry payments (Open Payments)
- 2025$323.67 · 6 payments from 2 companies
- 2024$542.44 · 10 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $200.00 | 1 |
| United Therapeutics Corporation | $123.67 | 5 |
What the 2025 payments were for
- Consulting Fee$200.00 · 1 payment
- Food and Beverage$123.67 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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