Creticus P. Marak, MD
NPI 1215163514ActiveIndividual· Internal Medicine, Critical Care Medicine· Denver, CO
Internal Medicine, Critical Care Medicine (MD) with Northeastern Health System, practicing in Denver, Colorado. Their prescriptions cost Medicare Part D more than their services did: $831,826 for 829 claims, against $70,788 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 4 companies reporting payments in 2025, $78.08 in all, mostly food and beverage. Lists Cherokee Nation W W Hastings Indian Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1215163514 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 2, 2009 |
| Last updated in NPPES | Jun 30, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | 53521 | CO |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 53521 | CO |
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 - Pulmonary Disease (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 431 |
|---|---|
| Services billed | 887 across 37 procedure codes |
| Paid by Medicare | $70,788 |
Part D prescriptions in 2024
| Prescriptions (claims) | 829 · 1,277 30-day fills |
|---|---|
| Patients | 185 |
| Total drug cost | $831,826 |
| Generic share | 42% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Internal Medicine |
Medical group
- Northeastern Health SystemTahlequah, OK · 103 clinicians
Hospital affiliations
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK
- Northeastern Health SystemTahlequah, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$78.08 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $25.38 | 1 |
| Genzyme Corporation | $18.95 | 1 |
| Insmed, Inc. | $18.50 | 1 |
| Astrazeneca Pharmaceuticals LP | $15.25 | 1 |
What the 2025 payments were for
- Food and Beverage$78.08 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 critical care physicians in Denver · All critical care physicians in Colorado