Myo Swe Chang, MD
NPI 1003899279ActiveIndividual· Internal Medicine· Fairfield, CA
Internal Medicine (MD) in Fairfield, California, licensed in CA, with an NPI issued in November 2005. Their prescriptions cost Medicare Part D more than their services did: $382,543 for 6,706 claims, against $48,557 paid for services in 2024. Tactile Systems Technology Inc reported $16.36 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1003899279 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 22, 2005 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A54869 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 66 |
|---|---|
| Services billed | 494 across 2 procedure codes |
| Paid by Medicare | $48,557 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,706 · 6,756 30-day fills |
|---|---|
| Patients | 112 |
| Total drug cost | $382,543 |
| Generic share | 88% of claims |
Industry payments (Open Payments)
- 2025$16.36 · 1 payment from 1 company
- 2024$19.52 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tactile Systems Technology Inc | $16.36 | 1 |
What the 2025 payments were for
- Food and Beverage$16.36 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 65 internal medicine physicians in Fairfield · All internal medicine physicians in California