Matthew Greg Lefferman, DO
NPI 1184622417ActiveIndividual· Internal Medicine· Los Angeles, CA
Internal Medicine (DO) with Senior Doc Integrated Med PC, practicing in Los Angeles, California. 1,209 Medicare patients in 2024, $2,789,017 paid; nearly all of their 45,367 Part D prescriptions were generic (90%). Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 2 companies reporting payments in 2025, $50.01 in all, mostly food and beverage. Lists Cedars-Sinai Medical Center as a hospital affiliation.
Overview
| NPI | 1184622417 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jul 11, 2005 |
| Last updated in NPPES | Jan 13, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A8857 | 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 | 1,209 |
|---|---|
| Services billed | 39,881 across 58 procedure codes |
| Paid by Medicare | $2,789,017 |
Part D prescriptions in 2024
| Prescriptions (claims) | 45,367 · 48,201 30-day fills |
|---|---|
| Patients | 1,088 |
| Total drug cost | $2,606,711 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Senior Doc Integrated Med PCSanta Ana, CA · 19 clinicians
Hospital affiliation
- Cedars-Sinai Medical CenterLos Angeles, CA
Other facilities
- Home Health 4u, IncHome health agency · Granada Hills, CA
- Intra Care Home Health Providers, IncHome health agency · Los Angeles, CA
- Priority Home Health Group, Inc.Home health agency · Santa Clarita, CA
- Reliance Home Health Care, Inc.Home health agency · Glendale, CA
- Remedy Home Health CareHome health agency · Northridge, CA
- 1 Heart Hospice and Palliative Care, IncHospice · Torrance, CA
- Affinity Healthcare ResourcesHospice · Agoura Hills, CA
- Assisted Home HospiceHospice · Mission Hills, CA
- Full Care Hospice and Palliative Care Inc.Hospice · Thousand Oaks, CA
- Heartford HospiceHospice · Irvine, CA
- Beverly Hills Rehabilitation CentreNursing home · Los Angeles, CA
- Guardian Rehabilitation HospitalNursing home · Los Angeles, CA
Industry payments (Open Payments)
- 2025$50.01 · 2 payments from 2 companies
- 2024$56.49 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $33.49 | 1 |
| Otsuka America Pharmaceutical, Inc. | $16.52 | 1 |
What the 2025 payments were for
- Food and Beverage$50.01 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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