Mark Andrew Chylinski, MD
NPI 1710408539ActiveIndividual· Internal Medicine· California, MD
Internal Medicine (MD) in California, Maryland, licensed in MD, with an NPI issued in July 2017. Their prescriptions cost Medicare Part D more than their services did: $222,616 for 2,652 claims, against $108,436 paid for services in 2024. Dynavax Technologies Corporation was the largest of 7 companies reporting payments in 2024, $228.53 in all, mostly food and beverage.
Overview
| NPI | 1710408539 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 1, 2017 |
| Last updated in NPPES | May 16, 2022 |
| Certified by provider | May 16, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0091250 | MD |
| Internal Medicine | 207R00000X | D91250 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (DC); Practitioner - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 364 |
|---|---|
| Services billed | 3,772 across 58 procedure codes |
| Paid by Medicare | $108,436 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,652 · 6,229 30-day fills |
|---|---|
| Patients | 272 |
| Total drug cost | $222,616 |
| Generic share | 89% of claims |
Industry payments (Open Payments)
- 2024$228.53 · 12 payments from 7 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Dynavax Technologies Corporation | $51.30 | 3 |
| Amgen Inc. | $43.92 | 2 |
| Novo Nordisk Inc | $43.63 | 2 |
| Abbvie Inc. | $41.15 | 2 |
| Lilly USA, LLC | $16.66 | 1 |
What the 2024 payments were for
- Food and Beverage$228.53 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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