Quick answers
- Where does Rex L. Mahnensmith see patients?
- Medicare's clinician data lists 2 practice locations, including Orange, CT and Bethel, CT. Call before your visit to confirm the address.
- What is Rex L. Mahnensmith's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Rex L. Mahnensmith accept Medicare assignment?
- Yes. Medicare's clinician data says Rex L. Mahnensmith 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 Rex L. Mahnensmith?
- (203) 529-3271, as listed in official Medicare / NPI Registry data.
- What is Rex L. Mahnensmith's NPI number?
- 1760466528. 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 Rex L. Mahnensmith is enrolled with Medicare (CMS data updated 2026-10-02).
- 521 Boston Post RdOrange, CT 06477 (203) 529‑3271
- 6 Stony Hill RdBethel, CT 06801 (203) 874‑3682
Group practices
Medicare enrollment lists Rex L. Mahnensmith as a member of these groups (CMS data updated 2026-10-02).
- Ct Medical Group Inc.37 clinicians in the group
- Docs Medical Inc30 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Connecticut
Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Yale University School Of Medicine |
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760466528 |
| 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