Maris R. Davis, M.D.
NPI 1841381076ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Glen Ridge, NJ
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Glen Ridge, New Jersey, trained at Columbia University College of Physicians and Surgeons (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $1,269,712 for 3,178 claims, against $200,234 paid for services in 2024. Corcept Therapeutics was the largest of 23 companies reporting payments in 2025, $1,683 in all, mostly food and beverage.
Overview
| NPI | 1841381076 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 26, 2006 |
| Last updated in NPPES | Oct 2, 2026 |
| Certified by provider | Oct 2, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 25MA05911700 | NJ |
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 - Endocrinology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 345 |
|---|---|
| Services billed | 7,122 across 15 procedure codes |
| Paid by Medicare | $200,234 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,178 · 7,661 30-day fills |
|---|---|
| Patients | 419 |
| Total drug cost | $1,269,712 |
| Generic share | 49% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Mpv New Jersey MD Services PCDumont, NJ · 151 clinicians
Hospital affiliation
- Hackensack Meridian Mountainside MedicalMontclair, NJ
Industry payments (Open Payments)
- 2025$1,683 · 70 payments from 23 companies
- 2024$738.82 · 34 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $372.20 | 15 |
| Abbott Laboratories | $194.97 | 4 |
| Xeris Pharmaceuticals, Inc. | $168.21 | 9 |
| Tandem Diabetes Care, Inc. | $141.90 | 1 |
| Lilly USA, LLC | $123.56 | 7 |
What the 2025 payments were for
- Food and Beverage$1,644 · 69 payments
- Education$39.56 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Endocrinology, Diabetes & Metabolism providers in Glen Ridge
- 1639336175
- 1124253752
- 1881891109
- 1497856629
All Internal Medicine, Endocrinology, Diabetes & Metabolism providers in New Jersey →