Quick answers
- Does Theresa A. Simpson accept Medicare assignment?
- Yes. Medicare's clinician data says Theresa A. Simpson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Theresa A. Simpson see?
- In 2024, CMS data shows 15 Original Medicare patients and 127 services for Theresa A. Simpson. This counts Original Medicare only and measures volume, not quality.
- What is Theresa A. Simpson's NPI number?
- 1376778449. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Theresa A. Simpson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 15 |
|---|---|
| Services billed to Medicare | 127 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Psychotherapy, 1 hour (90837)107 services
- Psychiatric diagnostic evaluation (90791)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- Anxiety75%
Practice locations
Addresses where Theresa A. Simpson is enrolled with Medicare (CMS data updated October 2, 2026).
- 53 Baxter BlvdPortland, ME 04101 (603) 883‑0005
- 707 Sable Oaks Dr, Suite 230South Portland, ME 04106 (603) 883‑0005
Group practices
Medicare enrollment lists Theresa A. Simpson as a member of this group (CMS data updated October 2, 2026).
- The Counseling Center of Nashua Inc258 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Portland
Clinicians with the same Medicare primary specialty in Portland, ME — not a recommendation.
Other clinicians in The Counseling Center of Nashua Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CSW |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1376778449 |
| 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 October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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