Richard Mallo, MD
NPI 1588699490ActiveIndividual· Internal Medicine· Escondido, CA
Internal Medicine (MD) with Graybill Medical Group Inc and 2 other groups, practicing in Escondido, California. Their prescriptions cost Medicare Part D more than their services did: $1,202,307 for 13,943 claims, against $209,970 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 9 companies reporting payments in 2025, $235.60 in all, mostly food and beverage. Lists Palomar Health Downtown Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1588699490 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | Dec 13, 2024 |
| Certified by provider | Dec 13, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A70324 | 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 | 387 |
|---|---|
| Services billed | 2,968 across 64 procedure codes |
| Paid by Medicare | $209,970 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,943 · 22,414 30-day fills |
|---|---|
| Patients | 586 |
| Total drug cost | $1,202,307 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Graybill Medical Group IncOceanside, CA · 104 clinicians
- Del Sur HealthcareEl Cajon, CA · 59 clinicians
- Senior Medical Associates IncSan Diego, CA · 12 clinicians
Hospital affiliations
- Palomar Health Downtown CampusEscondido, CA
- Palomar Medical Center PowayPoway, CA
Other facilities
- Archer Health IncHome health agency · Carlsbad, CA
- Evita Health Care IncHome health agency · Temecula, CA
- Liahona Home Health Agency, Inc.Home health agency · Escondido, CA
- Shield Home HealthHome health agency · San Diego, CA
- Palomar Health Palliative & Hospice CareHospice · San Marcos, CA
- Vitas Healthcare Corporation of CaliforniaHospice · San Diego, CA
- Pacific Villas Post AcuteNursing home · Oceanside, CA
- Palomar Vista Healthcare CenterNursing home · Escondido, CA
- The Villas at PowayNursing home · Poway, CA
- Villa Rancho Bernardo Care CenterNursing home · San Diego, CA
Industry payments (Open Payments)
- 2025$235.60 · 12 payments from 9 companies
- 2024$225.18 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $42.14 | 2 |
| Otsuka America Pharmaceutical, Inc. | $41.35 | 2 |
| Lilly USA, LLC | $37.08 | 2 |
| Neurocrine Biosciences, Inc. | $31.57 | 1 |
| Gilead Sciences, Inc. | $27.95 | 1 |
What the 2025 payments were for
- Food and Beverage$235.60 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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