Mary Ruth Johnson, D.D.S.
Dentist, General Practice (D.D.S.) in Danville, California, licensed in CA, with an NPI issued in May 2007. Part D covered 48 prescriptions written in 2024, 100% of them generic. Straumann USA LLC reported $29.47 in payments in 2025, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1568679645 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.D.S. |
| Sole proprietor | Yes |
| NPI issued | May 17, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, General Practice Primary | 1223G0001X | 33432 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Mary Johnson · Nurse/Nurses Aide | 1128b4 | May 19, 2005 | Taft, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 48 · 48 30-day fills |
|---|---|
| Patients | 36 |
| Total drug cost | $336.75 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$29.47 · 1 payment from 1 company
- 2024$86.49 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Straumann USA LLC | $29.47 | 1 |
What the 2025 payments were for
- Food and Beverage$29.47 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other general dentists in Danville
- 1023111952
- 1053446088
- 1184270159
- 1265538334
- 1346445152
- 1366457111
- 1407331770
- 1477906840
- 1861459539
- 1043422504
- 1093398141
- 1174699789
All 40 general dentists in Danville · All general dentists in California