Mladen Jecmenica, M.D.
NPI 1619102837ActiveIndividual· Internal Medicine, Gastroenterology· Corona, CA
Internal Medicine, Gastroenterology (M.D.) with Mj Medical Group,inc., practicing in Corona, California. In 2024 Medicare paid $59,921 for 298 patients, and Part D covered 403 of their prescriptions, 81% of them generic. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $420.01 in all, mostly food and beverage. Lists Corona Regional Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1619102837 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 18, 2009 |
| Last updated in NPPES | Mar 17, 2026 |
| Certified by provider | Mar 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD449785 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
| Hospitalist | 208M00000X | MD449785 | PA |
| Internal Medicine | 207R00000X | MD449785 | 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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 298 |
|---|---|
| Services billed | 566 across 31 procedure codes |
| Paid by Medicare | $59,921 |
Part D prescriptions in 2024
| Prescriptions (claims) | 403 · 551 30-day fills |
|---|---|
| Patients | 230 |
| Total drug cost | $39,832 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Mj Medical Group,inc.Foothill Ranch, CA · 2 clinicians
Hospital affiliations
- Corona Regional Medical CenterCorona, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Industry payments (Open Payments)
- 2025$420.01 · 13 payments from 8 companies
- 2024$40.51 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $113.35 | 5 |
| Medtronic, Inc. | $109.30 | 1 |
| Madrigal Pharmaceuticals | $81.59 | 2 |
| Lilly USA, LLC | $31.17 | 1 |
| Gilead Sciences, Inc. | $29.48 | 1 |
What the 2025 payments were for
- Food and Beverage$420.01 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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