Gloria Lan
NPI 1851653158ActiveIndividual· Internal Medicine, Gastroenterology· Berkeley Heights, NJ
Internal Medicine, Gastroenterology in Berkeley Heights, New Jersey, trained at Northwestern University Feinberg Medical School (class of 2012). In 2024 Medicare paid $200,208 for 545 patients, and Part D covered 848 of their prescriptions, 86% of them generic. Genzyme Corporation was the largest of 2 companies reporting payments in 2025, $106.71 in all, mostly food and beverage.
Overview
| NPI | 1851653158 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jun 12, 2012 |
| Last updated in NPPES | Apr 25, 2022 |
| Certified by provider | Apr 25, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 25MA11364200 | NJ |
| Internal Medicine | 207R00000X | 277490 | NY |
| Internal Medicine, Gastroenterology | 207RG0100X | 277490 | NY |
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 - Gastroenterology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 545 |
|---|---|
| Services billed | 11,233 across 128 procedure codes |
| Paid by Medicare | $200,208 |
Part D prescriptions in 2024
| Prescriptions (claims) | 848 · 1,608 30-day fills |
|---|---|
| Patients | 295 |
| Total drug cost | $107,809 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Summit Medical Group PABerkeley Heights, NJ · 1,212 clinicians
Hospital affiliations
- Morristown Medical CenterMorristown, NJ
- Overlook Medical CenterSummit, NJ
Industry payments (Open Payments)
- 2025$106.71 · 5 payments from 2 companies
- 2024$106.54 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $86.04 | 4 |
| Sanofi Pasteur Inc. | $20.67 | 1 |
What the 2025 payments were for
- Food and Beverage$106.71 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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