Quick answers
- Where does Paul Obrien see patients?
- Medicare's clinician data lists 2 practice locations, including North Chelmsford, MA and Lowell, MA. Call before your visit to confirm the address.
- What is Paul Obrien's specialty?
- Medicare lists Clinical Psychologist as the primary specialty.
- Does Paul Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Paul Obrien accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Paul Obrien?
- (978) 788-7200, as listed in official Medicare / NPI Registry data.
- What is Paul Obrien's NPI number?
- 1215978895. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Paul Obrien is enrolled with Medicare (CMS data updated 2026-10-02).
- 20 Research Pl, Suite 1North Chelmsford, MA 01863 (978) 788‑7200
- 295 Varnum AveLowell, MA 01854 (978) 788‑7344
Group practices
Medicare enrollment lists Paul Obrien as a member of this group (CMS data updated 2026-10-02).
- LGH Medical Group, Inc.166 clinicians in the group
Specialties
- Clinical Psychologistprimary
Find other clinicians: Clinical Psychologist, Massachusetts →
Other clinical psychologists in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Graduation year | 1989 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215978895 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians