William Gresser, M.A.
NPI 1558341529ActiveIndividual· Marriage & Family Therapist· Acton, MA
Opted out of Medicare from July 2025 to July 2027. Marriage & Family Therapist (M.A.) in Acton, Massachusetts, licensed in MA, with an NPI issued in January 2006.
Overview
| NPI | 1558341529 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.A. |
| Sole proprietor | No |
| NPI issued | Jan 18, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Marriage & Family Therapist Primary | 106H00000X | 141 | MA |
| Counselor, Mental Health | 101YM0800X | 255 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Jul 16, 2025 – Jul 16, 2027 |
| Can order and refer | No |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
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