Richard Green, MD
NPI 1770511404ActiveIndividual· Internal Medicine, Gastroenterology· Chicago, IL
Internal Medicine, Gastroenterology (MD) in Chicago, Illinois, trained at Duke University School of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $276,276 for 284 claims, against $8,684 paid for services in 2024. Mirum Pharmaceuticals, Inc. reported $9,618 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1770511404 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 29, 2006 |
| Last updated in NPPES | Oct 17, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036075792 | IL |
| Internal Medicine, Hepatology | 207RI0008X | 036075792 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 72 |
|---|---|
| Services billed | 126 across 15 procedure codes |
| Paid by Medicare | $8,684 |
Part D prescriptions in 2024
| Prescriptions (claims) | 284 · 588 30-day fills |
|---|---|
| Patients | 64 |
| Total drug cost | $276,276 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Duke University School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Memorial HospitalChicago, IL
- Palos Community HospitalPalos Heights, IL
Industry payments (Open Payments)
- 2025$9,618 · 17 payments from 1 company
- 2024$8,896 · 15 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mirum Pharmaceuticals, Inc. | $9,618 | 17 |
What the 2025 payments were for
- Consulting Fee$7,800 · 2 payments
- Travel and Lodging$1,255 · 7 payments
- Food and Beverage$562.48 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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