Richard Dean Guthrie, D.D.S.
NPI 1134270010ActiveIndividual· Dentist, General Practice· Mission Viejo, CA
Opted out of Medicare from October 2015 to October 2027. Dentist, General Practice (D.D.S.) in Mission Viejo, California, licensed in CA, with an NPI issued in January 2007. Part D covered 21 prescriptions written in 2024, 100% of them generic. A-Dec, Inc. was the largest of 3 companies reporting payments in 2025, $1,723 in all, mostly gifts.
Overview
| NPI | 1134270010 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.D.S. |
| Sole proprietor | Yes |
| NPI issued | Jan 16, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, General Practice Primary | 1223G0001X | 42658 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Oct 5, 2015 – Oct 5, 2027 |
| Can order and refer | Yes |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 21 · 21 30-day fills |
|---|---|
| Patients | 18 |
| Total drug cost | $97.27 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$1,723 · 3 payments from 3 companies
- 2024$40.17 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| A-Dec, Inc. | $845.00 | 1 |
| Patterson Companies, Inc. | $750.00 | 1 |
| Ultradent Products Inc | $128.49 | 1 |
What the 2025 payments were for
- Gift$973.49 · 2 payments
- Education$750.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 93 general dentists in Mission Viejo · All general dentists in California