Mark Lott, M.D.
NPI 1821192139ActiveIndividual· Internal Medicine, Gastroenterology· Inglewood, CA
Internal Medicine, Gastroenterology (M.D.) in Inglewood, California, trained at Howard University College of Medicine (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $299,104 for 759 claims, against $120,303 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 9 companies reporting payments in 2025, $2,157 in all, mostly grants.
Overview
| NPI | 1821192139 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 8, 2006 |
| Last updated in NPPES | Dec 29, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | G85987 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 419 |
|---|---|
| Services billed | 1,301 across 22 procedure codes |
| Paid by Medicare | $120,303 |
Part D prescriptions in 2024
| Prescriptions (claims) | 759 · 1,018 30-day fills |
|---|---|
| Patients | 362 |
| Total drug cost | $299,104 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Howard University College of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Coast Gastroenterology A Medical Group Inc.Inglewood, CA · 3 clinicians
Hospital affiliation
- Centinela Hospital Medical CenterInglewood, CA
Industry payments (Open Payments)
- 2025$2,157 · 22 payments from 9 companies
- 2024$671.71 · 32 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $1,714 | 2 |
| Pfizer Inc. | $142.01 | 7 |
| Genzyme Corporation | $75.95 | 2 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $60.13 | 3 |
| Abbvie Inc. | $54.81 | 3 |
What the 2025 payments were for
- Grant$1,667 · 1 payment
- Food and Beverage$490.44 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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