Lawrence D. Mass, MD
NPI 1316943830ActiveIndividual· Internal Medicine· Lower Gwynedd, PA
Internal Medicine (MD) in Lower Gwynedd, Pennsylvania, trained at Jefferson Medical College of Thomas Jefferson University (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $809,936 for 8,615 claims, against $168,602 paid for services in 2024. Amgen Inc. reported $18.97 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1316943830 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 21, 2005 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD066124L | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 532 |
|---|---|
| Services billed | 2,604 across 43 procedure codes |
| Paid by Medicare | $168,602 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,615 · 20,390 30-day fills |
|---|---|
| Patients | 765 |
| Total drug cost | $809,936 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Einstein Community Health Associates IncPhiladelphia, PA · 224 clinicians
Hospital affiliations
- Doylestown HospitalDoylestown, PA
- Hospital of Univ of PennsylvaniaPhiladelphia, PA
- Jefferson Abington HospitalAbington, PA
- Jefferson Lansdale HospitalLansdale, PA
- Thomas Jefferson University HospitalPhiladelphia, PA
Other facilities
- Jefferson Health at Home By BayadaHome health agency · Horsham, PA
- Willowbrooke Ctskdcarectr Atnormandy Farms EstatesNursing home · Blue Bell, PA
Industry payments (Open Payments)
- 2025$18.97 · 1 payment from 1 company
- 2024$60.77 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $18.97 | 1 |
What the 2025 payments were for
- Food and Beverage$18.97 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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