Stephen Marshall, PHD
NPI 1235651290ActiveIndividual· Psychologist· Arlington, MA
Opted out of Medicare from January 2024 to January 2028. Psychologist (PHD) in Arlington, Massachusetts, licensed in MA, with an NPI issued in July 2017.
Overview
| NPI | 1235651290 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PHD |
| Sole proprietor | No |
| NPI issued | Jul 12, 2017 |
| Last updated in NPPES | Sep 28, 2026 |
| Certified by provider | Sep 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychologist Primary | 103T00000X | — | MA |
| Psychologist, Cognitive & Behavioral | 103TB0200X | — | — |
| Psychologist, Clinical | 103TC0700X | 11006 | 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 Jan 14, 2024 – Jan 14, 2028 |
| 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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