Demetrius Peter Rizos, DO
NPI 1063491397ActiveIndividual· Internal Medicine· Brookline, MA
Internal Medicine (DO) in Brookline, Massachusetts, trained at Nova Southeastern College of Osteo Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $207,274 for 3,585 claims, against $10,615 paid for services in 2024. Ardelyx, Inc. reported $21.69 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1063491397 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jan 13, 2006 |
| Last updated in NPPES | Sep 30, 2026 |
| Certified by provider | Sep 30, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 212775 | MA |
| Internal Medicine, Nephrology | 207RN0300X | 212775 | MA |
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 - Internal Medicine (KY); Practitioner - Hospitalist (MA); Practitioner - Nephrology (MT); Practitioner - Nephrology (NC); Practitioner - Internal Medicine (NY); Practitioner - Nephrology (PA); Practitioner - Nephrology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 153 |
|---|---|
| Services billed | 191 across 9 procedure codes |
| Paid by Medicare | $10,615 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,585 · 3,607 30-day fills |
|---|---|
| Patients | 243 |
| Total drug cost | $207,274 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Nova Southeastern College of Osteo Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Nephrology |
| Secondary specialties | Hospitalist |
Medical groups
- Scl Health Medical Group - Billings LLCBillings, MT · 297 clinicians
- Cogent Healthcare of Montana P CGreat Falls, MT · 79 clinicians
- Pittsburgh Kidney Care LLCUniontown, PA · 15 clinicians
Hospital affiliations
- Holy Rosary HospitalMiles City, MT
- Intermountain Health St Vincent Regional HospitalBillings, MT
- Uniontown HospitalUniontown, PA
Other facilities
- Davita Fayette County DialysisDialysis facility · Uniontown, PA
- Fkc Redstone CentervilleDialysis facility · Brownsville, PA
- Fkc UniontownDialysis facility · Uniontown, PA
Industry payments (Open Payments)
- 2025$21.69 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $21.69 | 1 |
What the 2025 payments were for
- Food and Beverage$21.69 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 71 internal medicine physicians in Brookline · All internal medicine physicians in Massachusetts