Quick answers
- Does Lydia K. Rex accept Medicare assignment?
- Yes. Medicare's clinician data says Lydia K. Rex 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 Lydia K. Rex see?
- In 2024, CMS data shows 31 Original Medicare patients and 62 services for Lydia K. Rex. This counts Original Medicare only and measures volume, not quality.
- What is Lydia K. Rex's NPI number?
- 1275159071. 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 Lydia K. Rex, 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 | 31 |
|---|---|
| Services billed to Medicare | 62 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)26 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)19 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).
- High blood pressure75%
- High cholesterol75%
- Depression58%
- Chronic kidney disease58%
- Diabetes55%
- Anxiety55%
Practice locations
Addresses where Lydia K. Rex is enrolled with Medicare (CMS data updated October 2, 2026).
- 145 Rosemary St, Suite CNeedham, MA 02494 (781) 235‑7900
- 34 Haverhill StLawrence, MA 01841 (978) 686‑0090
- 70 -71 N Parish RdLawrence, MA 01843 (978) 722‑8391
- 73 D Winthrop Ave, Plaza 114Lawrence, MA 01843 (978) 686‑3017
Group practices
Medicare enrollment lists Lydia K. Rex as a member of these groups (CMS data updated October 2, 2026).
- Greater Lawrence Family Health Center Inc122 clinicians in the group
- Wellesley Family Care Associates PC22 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Needham
Clinicians with the same Medicare primary specialty in Needham, MA — not a recommendation.
Other clinicians in Greater Lawrence Family Health Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2020 (6 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1275159071 |
| 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